Common Mistakes When Buying a Truck Scale

Investing in a truck scale is a significant decision for businesses involved in transportation, logistics, agriculture, waste management, and various other industries. However, the process of purchasing a truck scale can be complex and daunting, especially for those unfamiliar with the intricacies of weighing equipment.

As a truck scale buyer, you need to make sure you avoid these common pitfalls. Too often one of these mistakes can torpedo and entire truck scale project. Don’t let that happen to you; review these top mistakes and how to avoid them.

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Wrong location

Where to put your truck scale. Don’t put it in a low-lying area. Low lying areas are where all the water on the property will collect or at a minimum run through. Water and scales are never a good combination. Even with today’s hermetically sealed load cells, there are still multiple weak points on scale electronics that water will damage.

Second, a low-lying area will collect build-up. What do we mean by build-up? Build-up is rocks, dirt, sand, or any other material that will wash or blow under the scale. This build-up will cause major scale weighing issues. The scale platforms overtime will begin to sit on the built-up dirt and not the load cells. What does this lead to? A scale that weighs light and not accurately.

Bottom-line consider the topography when selecting a location for you truck scale.

Wrong Foundation Type

Too often truck scale buyers think they want a pit style foundation. Pit foundations have their place, but they are the exception and not the norm. A pit foundation sounds good in theory since it doesn’t require concrete ramps, take up less space, etc. But understand a true pit foundation will cost in concrete work 2-2.5x the cost of an above-ground foundation.

In addition, a pit scale is covered by confined space entry regulations, meaning the cost for maintenance goes up significantly. A concrete pit for a scale is like a big bucket on your property that will collect water. This means a sump pumping system must be installed and that moisture can begin to rust the scale from the underside faster.

Bottom-line, unless you need a pit foundation for a specific reason choose an above- ground. You and your scale will be happier.

To learn more about the different truck scale foundation types see this blog post.

Failing to Consider Environmental Factors:

Truck scales are exposed to various environmental conditions, including extreme temperatures, moisture, corrosive substances, and heavy traffic. Unfortunately, there are those who will neglect the importance of these factors when selecting a scale, opting for models that may not withstand their specific environment. To avoid this mistake, thoroughly assess the conditions in which your truck scale will operate and choose a robust, weather-resistant design that can withstand the rigors of your facility's surroundings. Additionally, consider factors such as installation location, protection from debris, and maintenance requirements to prolong the scale's lifespan.

Wrong Scale Installation Company / Dealer

The old saying you cant get all three (fast, cheap, and good quality) is applicable when selecting a truck scale installer. Whatever you do ensure you have good quality. A truck scale is a 25-year investment that can be ruined if installed incorrectly. Make sure your installer is certified/licensed in your state, has required insurance (WC, GL,etc.), and have a track- record of previous installations that they can show you.

You can mitigate all the other mistakes but if your scale is installed incorrectly the rest of your work & planning will be useless.

Neglecting to Assess Weight Capacity Requirements:

One of the most crucial aspects of buying a truck scale is determining the appropriate weight capacity for your specific needs. Many will make the mistake of underestimating the maximum weight their scale will need to accommodate. This oversight can lead to inaccurate measurements, potential damage to the scale, and costly repairs or replacements down the line. Before making a purchase, carefully evaluate the heaviest loads your operation will handle and choose a truck scale with a capacity that exceeds those requirements to ensure accuracy and longevity.

Overlooking Calibration and Accuracy:

Accuracy is paramount when it comes to weighing operations, as even minor discrepancies can have significant implications for inventory management, compliance, and financial reporting. However, many overlook the importance of calibration and accuracy when purchasing a truck scale, assuming that all models provide equally precise measurements. To ensure reliable performance, inquire about the scale's calibration process, accuracy specifications, and adherence to industry standards. Additionally, consider investing in features such as built-in diagnostics and remote monitoring capabilities to facilitate ongoing calibration and troubleshooting, thereby minimizing downtime and maximizing accuracy.

Poor Project Planning

As with any construction project having a good plan is paramount to success. Your project plan should be a partnership between you and your scale installation company. There are a number of moving pieces when installing a new truck scale. When will the scale arrive? Who is coordinating the crane? Is the foundation poured and cured? Are the conduits for cabling/wires laid out? Is there 120VAC power run to where the remote display will go? Do you need building permits? Will the scale connect to a computer? The questions go on and on. Lean on your scale installer to lead the project but understand as the buyer you carry many of the responsibilities of whether the installation timeline is met.

As the buyer you will most likely need to provide 120VAC power to power the scale; without power the scale installer cannot complete installation of the scale, calibration of the scale, or set-up of the indicator. Bottom-line, select the right scale installation company and build a strong partnership with them to ensure an on-time, on-budget truck scale installation.

Wrong Scale

Selecting the correct scale for your project is foundational. We have dedicated a couple whole articles to all the options you must select (deck type, scale length, scale width, electronic or hydraulics, digital or analog, etc.). One focus point is buying a scale that is paired to number of trucks you plan to weigh daily and their average weight.

Do not buy a light or medium duty scale if you plan to pound150 logging trucks each weighing 90k lbs+ everyday across your scale. Buying a heavier duty scale will never hurt you.

For learning which deck type to select see this blog post.

Sacrificing Quality for Cost Savings

In today's competitive marketplace, cost is a significant factor for many consumers when purchasing equipment. However, prioritizing upfront savings over long-term value can be a costly mistake when buying a truck scale. Some opt for cheaper, low-quality models to minimize initial investment without considering the potential consequences, such as reduced accuracy, frequent maintenance issues, and premature failure. Instead, focus on finding a balance between price and quality, investing in a reputable brand known for reliability, durability, and customer support. While high-quality truck scales may come with a higher upfront cost, they offer superior performance and longevity, ultimately delivering greater value over time.

Closing Words

Purchasing a truck scale is a significant investment that requires careful consideration of various factors to ensure optimal performance, accuracy, and durability. By avoiding the common mistakes outlined in this article and taking a strategic approach to the buying process, consumers can select a truck scale that meets their specific needs, enhances operational efficiency, and delivers long-term value for their business.

American Scale is your source for industrial scales. Be sure to check out our Learning Hub for in depth articles tackling multiple topics. From scale service and maintenance, to learning how to pick the right scale for you. American Scale has you covered.

What Are NIST Traceable Weights?

Improving Accuracy

When it comes to weighing and measuring, it's important to have confidence in the accuracy of the equipment and tools being used. This is where NIST traceable weights come into play. But what exactly do these weights mean and why are they important? In this post, we'll explain what NIST traceable weights are and why they are essential for ensuring the accuracy of weighing and measuring devices. This article will focus on NIST and how their test weights are used in weights and measures.

What is NIST?

NIST, or the National Institute of Standards and Technology, is a federal agency within the U.S. Department of Commerce that is responsible for promoting innovation and industrial competitiveness. One of the ways it does this is by developing and disseminating standard reference materials, such as weights, that are used to calibrate and verify the accuracy of weighing and measuring devices.

What does it mean to be traceable?

Weights that are traceable to NIST standards are those that have been calibrated using a traceable reference standard, such as a primary mass standard, and are traceable to the international system of units (SI). This means that the weights have been measured and compared against a standard that is traceable to the SI, ensuring that they are accurate and consistent with international standards.

Why traceable weights are important.

Using NIST traceable weights is important for several reasons. First and foremost, it ensures that the weights being used are accurate and reliable. This is crucial for ensuring the accuracy of the weighing and measuring devices that they are used to calibrate. For example, if a truck scale is calibrated using weights that are not traceable to NIST standards, there is a risk that the scale will not provide accurate measurements of the weight of the trucks passing over it.

Benefits of nist weights?

In addition to ensuring accuracy, using NIST traceable weights also helps to promote consistency and comparability. By using weights that are traceable to the same reference standards, different weighing and measuring devices can be calibrated and compared to one another, ensuring that they are consistent and provide comparable results. This is important for applications where the results of different measurements need to be compared, such as in research and development or quality control.

Adhering to the regulations and standards is the best way to ensure that your scale is accurate. Following the NIST regulation it the way to accomplish this.

Closing Words

In conclusion, NIST traceable weights are essential for ensuring the accuracy and reliability of weighing and measuring devices. By using weights that have been calibrated and compared against traceable reference standards, it is possible to ensure that the devices are providing accurate and consistent measurements. This is crucial for a wide range of applications, from charging for the weight of goods being transported to conducting research and development. By using NIST traceable weights, you can have confidence in the accuracy of your measurements and the reliability of your equipment.

At American Scale we strive to bring you informed and useful content on all things scale systems related, including products from the top scale manufacturers. Be sure to check out our truck scale articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership. Also, take a look at our “Common Problems With Bench Scales'', to help prolong the lifespan on your scale.

A Comprehensive Guide to Calibrating Truck Scales

Truck scales are vital to transportation, logistics, agriculture, and manufacturing industries. Accurate weight measurements are crucial for determining shipping costs, complying with regulations, preventing overloading, and ensuring fair trade practices. However, for truck scales to provide accurate readings, they must be regularly calibrated. Calibration is the process of adjusting the scale to ensure its measurements are in line with known standards. In this article, we delve into the intricate process of calibrating truck scales, exploring its significance, methods, and best practices.

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The Significance of Calibrating Truck Scales

Calibrating truck scales is more than just a routine maintenance task; it's a critical aspect of ensuring operational accuracy, compliance, and safety. Accurate weight measurements are essential for:

1. Regulatory Compliance: Truck scales are subject to various regulations and standards imposed by governmental bodies. Non-compliance can lead to penalties, fines, or even legal action.

2. Preventing Overloading: Overloading trucks can lead to safety hazards, excessive wear and tear on vehicles, and damage to road infrastructure. Accurate weight measurements help prevent overloading.

3. Fair Trade Practices: In industries where goods are bought or sold based on weight, such as agriculture and mining, fair trade relies on accurate weight measurements.

4. Resource Management: Efficient use of resources, such as fuel and materials, relies on precise weight measurements.

The Calibration Process

Calibrating truck scales is a multi-step process that requires careful planning, specialized equipment, and adherence to industry standards. Here's a breakdown of the key steps involved:

Preparation: Before initiating the calibration process, it's essential to prepare adequately:

• Gather Equipment: Collect the necessary tools, including certified test weights, calibration software (if applicable), and tools for adjustments.

• Documentation: Review the scale's user manual, calibration guidelines, and any applicable regulations.

• Safety Measures: Ensure safety protocols are in place, as calibration might require lifting heavy loads or working in proximity to moving vehicles.
  

Zero Adjustment: The first step is to bring the scale to its "zero" or "tare" state. This ensures that the scale reads zero when no load is present. If the scale doesn't show zero, adjustments might be needed.

Load Cell Testing: Load cells are the heart of a truck scale. They convert the weight of the vehicle into an electrical signal. Testing each load cell involves applying known weights and verifying that the scale's readings match the expected values. Load cell testing helps identify faulty cells that might require repair or replacement.

Corner Test: A corner test involves placing a certified test weight at each corner of the scale platform. This ensures that each load cell is functioning correctly and that weight is distributed evenly across the scale.

Linearity Test: The linearity test checks if the scale provides consistent readings across its entire range. This is done by applying different known weights and comparing the scale's readings to the expected values.

Adjustments: If discrepancies are detected during testing, adjustments are necessary. Modern truck scales often have digital calibration systems that allow for adjustments to be made electronically. Older scales might require manual adjustments using mechanical mechanisms.

Final Verification: After adjustments are made, the scale needs to be retested to ensure it now provides accurate readings. This involves repeating some or all of the tests mentioned above.

Documentation: Thorough documentation of the calibration process is crucial. Record the tests performed, the adjustments made, and the final verified measurements. This documentation serves as evidence of compliance and accuracy.

Best Practices for Calibrating Truck Scales

1. Regular Schedule: Establish a regular calibration schedule based on usage and manufacturer recommendations. High-traffic scales might require more frequent calibrations.

2. Certified Test Weights: Use certified test weights that have been calibrated by an accredited laboratory. These weights ensure the accuracy of your calibration process.

3. Trained Personnel: Calibration should be performed by trained technicians familiar with the specific scale model and the calibration process.

4. Environmental Conditions: Calibrate the scale in stable environmental conditions. Temperature changes, vibrations, and other external factors can affect measurements.

5. Record Keeping: Maintain a detailed record of each calibration, including dates, adjustments, and results. This history aids in tracking performance over time.

6. Quality Control: Implement a quality control process to validate the accuracy of the calibration process itself.

7. Calibration Labels: Attach a calibration label to the scale, indicating the date of the last calibration and the technician responsible.

Closing Words

Calibrating truck scales is a meticulous process that ensures accurate weight measurements, compliance with regulations, and the efficient operation of various industries. Regular calibration not only prevents legal and operational issues but also promotes fair trade practices and resource management. By following best practices and investing in the necessary equipment and training, organizations can maintain the integrity of their truck scales and uphold the standards that underpin their business operations.

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

What's Involved In A Truck Scale Installation?

What’S Included in a truck scale installation?

So you picked out your new truck scale and are ready to start weighing trucks. However, before any weighing can start, your new truck scale needs to be installed. Installation of a truck scale includes a number of different components that your local scale dealer will complete. The main areas of the installation include setting the scale, anchoring the scale, running all cabling, wiring the scale, setting up peripheral devices, calibrating the scale, and placing the scale into service. Below we will review each area:

1. Setting The Scale:

Prior to setting the scale your foundation will be complete. To learn more about truck scale foundations check out this blog post. Setting the scale involves using a crane, loader, or other lifting equipment to offload the truck delivering the scale and placing the scale modules onto the foundation. Setting the scale can be a lengthy or short process depending on whether there is easy access to the foundation. For example, setting a scale on a foundation located in an open field is a quick & easy process; however, setting a scale inside the tunnel of a feed mill facility is much more difficult due to height restrictions. Your scale company will also be the ones to arrange the logistics of the truck and crane. Once the truck scale is set on the foundation, it’s time to begin anchoring.

2. Anchoring The Scale:

After the scale modules are set on the foundation they will require adjustments to ensure they are aligned properly. Large breaker bars and interconnect bolts will help ensure the modules are in the correct location. Once the scale is in the correct location it will be set onto the base plates and load cells. At this point, the scale technician will begin drilling anchor bolt holes in the foundation and then installing and tightening the anchor bolts. At the end of anchoring, the scale should be secured to the new foundation and centered + level with the approaches & end-walls. Also any checking or adjustment bolts will be installed and set to the correct tolerances.

3. Wiring The Scale:

Depending on what brand and type scale you purchased, the wiring of the scale will be different for each. For most electronic truck scales, each loadcell’s cable requires running it to the junction box. Here, each loadcell cable will be landed on the internal board. The color coding for the wires on loadcells varies dramatically between different manufacturers, this is where a trained scale technician comes in. The final step is attaching the homerun cable to the junction box and running it to where your scale indicator will be located. At this point your truck scale is on the foundation, anchored, and wired to your scale indicator.

4. Setting Up Peripheral Devices:

In addition to the truck scale a number of other devices are normally connected to the scale indicator. Most states require legal-for-trade truck scales to have a remote display or scoreboard, to learn more about the requirements checkout this blog post. The scale technician will wire the indicator and program it to send the weight data to the remote display so the truck driver can see his weight while on the scale. Printers are another common peripheral device. Connecting the printer involves wiring the scale indicator to the printer and setting up a number of parameters to ensure the scale ticket prints correctly. Other peripheral devices can include outputs to HMI / PLCs, photo-eyes, etc.

5. Calibrating The Scale:

This step of the installation process involves calibrating your new truck scale to ensure it is weighing correctly. Your scale company will bring a heavy-capacity test truck on-site to use for this task. Known weights such as 20,000 lbs will be placed over each load cell and section during the calibration procedure. At the end of the calibration your truck scale will be weighing accurately. You will also receive a truck scale test report from your scale company outlining the results of the calibration.

6. Placed Into Service:

The final step that is required is if your truck scale is being used in a legal-for-trade operation then it will need to be placed into service with your state. This step is completed by your scale company and ensures you are legally allowed to start using your new truck scale.

As you can see, the process to install a truck scale has numerous steps and can range from simple to complex. To learn more about the cost of a truck scale, checkout this blog post.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

Axle Scale vs Full Size Truck Scale?

We are often asked what are the differences between a full size, say 70ft truck scale, and an axle scale.  There are few key features that differentiate an axle scale from its large brother.

What is an axle scale?

As the name implies an axle scale is a weighing system designed to weigh the individual axle groups.  The weighments are completed one axle set at a time and then all the axle weights are summed to provide the total gross weight of the truck.  This is much different than a full size truck scale where the entire truck is weighed at one time.

Legal For Trade:

If you are using your scale in any legal for trade weighing operations then an axle scale cannot be used.  Axle scales are not considered Legal For Trade.  This is because as each axle group is weighed individually there are slight errors and therefore the overall accuracy of the scale is not within national testing standards.  Bottom-line, if you are looking to weigh trucks legal for trade then you cannot use an axle scale.

Benefits of an axle scale?

Although axle scales cannot be used legal for trade they work well in many situations.  They are great for gathering weight data to ensure trucks don’t leave a facility overloaded per DOT standards.  They also take up significantly less space than a full size truck scale.  This is a huge advantage for facilities with limited real estate to locate a scale.  The footprint for an axle scale is only 33% of a full size truck scale.  Axle scales are also more economical.  This is because the scale itself is much smaller and requires less materials to construct.  Similarly, any concrete foundation work is much less with an axle scale vs a full size truck scale.  Finally, not all axle scales require installation requiring concrete foundations.  Many can be installed on existing flat pavement and are therefore easier to install and move in the future if needed.

Axle Scales & Weigh-in-Motion?

A unique benefit of an axle scale is their ability to offer weigh-in-motion.  This means the truck does not have to stop on the scale, instead they drive over it at a slow speed and the scale does the rest.  Although the accuracy is slightly less, weigh-in-motion provides operational benefits since more trucks can be weighed faster since each truck does not have to stop.  Most weigh-in-motion axle scales boast 1-2% accuracy.  Keep in mind that not all axle scales offer this feature.  Many axle scales are simply static scales that sum of the total axle weights at the completion of all axle groups being weighed.  

Popular Axles Scales

There are a number of manufacturers of axle scales.  Of note is InterComp Scales, B-Tek Scales, and Cardinal Scales.  Each has their own models and options; see below for a few popular ones. Also checkout our Axle Scale page.

Intercomp

Intercomp LS-WIM Axle Scale (Copy)

Intercomp AX900 Axle Scale (Copy)

B-Tek

B-Tek AX300 (Copy)

B-Tek Ax200 (Copy)

Cardinal

Cardinal 760PS Axle Scale (Copy)

Cardinal SWIM Axle Scale (Copy)

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

How Much Does A Turn-Key Truck Scale Project Cost?

Cost Of A Turn-Key Truck Scale Project

The installation of a new truck scale involves many different moving parts and pieces. Choosing the right scale and features along with project costs and timelines can become a bit overwhelming. Your scale company will have many questions which can affect the cost of your project. The fact remains that everyone wants to know the answer to a complex question – What does a turn-key truck scale installation cost? In this article, we will lay out what you can expect to be included in your turn-key project and how much you can expect to spend for different features.

Truck Scale Installation Labor & Calibration:

The first thing included on your quote would be a line for labor – installation and calibration. This typically runs between $4,000 and $7,500. If you have a new installation on a new foundation, the cost will be less. If you have a truck scale that you are replacing, the cost is usually a little higher due to the extra trips to your site and preparations made for the installation of your new scale. Installation and calibration will include all parts of your scale. The install team will also make sure that auxiliary devices are connected to include indicators, ticket printers, computer programs, kiosks, outside displays, and intercom systems. Conduit is typically installed by the contractors who you choose to build the scale house or wherever the scale operator will be located. Along with calibration, a “Placed into Service” form that the scale company fills out is sent to your state’s weights and measures office.  This ensures you are able to use your scale in a legal for trade application. 

Crane Cost

Cranes are often used to remove old scales and set new scales into place. Crane costs typically range from $2,500 to $3,500. If you are removing an old scale, the cost of freight to remove the old scale off site to a scrap yard is included in this cost, particularly if it is a steel deck scale.

Concrete Foundation Cost

Concrete and foundation work is a big part of your new scale cost. Most scale companies provide an experienced concrete contractor to perform the site preparations. Once the site is ready, the contractor will form and pour the ramps, approaches, and foundation. For more information on these items, reference the article in our Learning Hub entitled “What Are the Truck Scale Foundation Types” Soil samples and other factors can determine the type of foundation that you need. A typical above-ground scale foundation with ramps and approaches will typically cost $30,000. Ask your service provider how to pick the right foundation. If you have an existing foundation, scales can be customized and built to fit so that no concrete work is needed! This could save you thousands so make sure you discuss this with your scale company.

Truck Scale Cost

Truck scales come in different shapes, sizes, and materials. To understand more about truck scale costs, reference our article in our Learning Hub entitled “How Much Do Truck Scales Cost” As a reference point, a truck scale will typically range from $45,000 for a basic analog truck scale to $80,000 for a high traffic, heavy-capacity scale. Your truck scale cost will include all parts and hardware needed to make your truck scale perform correctly for many years. The options are endless so spend some time in our Learning Hub and get to know how truck scales will help your operation before selecting which scale you buy.

Freight Cost

The final piece of your cost is freight. Freight can range from $2,500 to $4,500 based on your distance from the manufacturer and your local permitting laws. All truck scales are delivered on a flatbed 18-wheeler that is typically oversized load overweight.

Total Cost Turn-key Truck Scale Project

So now the big question – What is the bottom line?

For a new truck scale installation, you can expect to see a turn-key project cost around $100,000 - $115,000. There are factors that you can keep this down for you which your scale company can help explain. If you are replacing an existing truck scale with no concrete work required, your cost will be around $80,000. Don’t let the number scare you! Buying a truck scale from a reputable manufacturer can give you a truck scale that will last for 25+ years.

Also check out our article “Truck Scale Installation: What’s Involved” for more details on what to expect. Also look into our articls Guide To Truck Scale Warranties

 Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

Intrinsically Safe Scales: What Are They?

What doe it mean to be intrinsically safe?

Intrinsically safe scales are a type of weighing device that is designed to operate safely in hazardous environments where there is a risk of explosion or fire. These scales are essential for industries that work with highly combustible materials such as oil and gas, chemical processing, and pharmaceutical manufacturing, where the presence of flammable gases or liquids makes the use of standard scales unsafe. In this post, we'll explain what intrinsically safe scales are, how they work, and why they are important for certain industries.

Why use intrinsically safe?

Intrinsically safe scales are designed to prevent the ignition of flammable gases or liquids in the event of a malfunction or failure. This is achieved through the use of special components and construction techniques that limit the amount of electrical energy and heat that the scale can generate. This makes it impossible for the scale to produce enough energy to ignite a flammable gas or liquid, even in the event of a failure. Thus providing an extra layer of safety for workers.

Intrinsically safe scales are typically constructed using materials and components that are non-sparking and non-heat-generating. For example, they may use stainless steel instead of aluminum for the load cells, and may use special cables and connectors that are designed to prevent sparking. Additionally, the scale's electronics may be sealed in an explosion-proof enclosure, and the scale may be equipped with additional safety features such as fuses and over-pressure valves.

Intrinsically Safe Applications.

The use of intrinsically safe scales is important in industries where the presence of flammable gases or liquids makes the use of standard scales unsafe. For example, in the oil and gas industry, intrinsically safe scales are used to weigh containers of flammable liquids, such as gasoline or propane, to ensure that they are properly filled and that the weight is accurately recorded. In the chemical processing industry, intrinsically safe scales are used to weigh chemicals and other materials to ensure that the correct amounts are used in the manufacturing process.

Closing words

In conclusion, intrinsically safe scales are a type of weighing device that is designed to operate safely in hazardous environments where there is a risk of explosion or fire. These scales are essential for industries such as oil and gas, chemical processing, and pharmaceutical manufacturing, where the presence of flammable gases or liquids makes the use of standard scales unsafe. By using intrinsically safe scales, these industries can ensure the safety of their employees and equipment, and can accurately weigh and measure materials without risking ignition.

At American Scale we strive to bring you informed and useful content on all things scale systems related, including products from the top scale manufacturers. Be sure to check out our truck scale articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership. Also, take a look at our “Common Problems With Bench Scales'', to help prolong the lifespan on your scale.

What Are NIST Traceable Weights?

Improving Accuracy

When it comes to weighing and measuring, it's important to have confidence in the accuracy of the equipment and tools being used. This is where NIST traceable weights come into play. But what exactly do these weights mean and why are they important? In this post, we'll explain what NIST traceable weights are and why they are essential for ensuring the accuracy of weighing and measuring devices. This article will focus on NIST and how their test weights are used in weights and measures.

What is NIST?

NIST, or the National Institute of Standards and Technology, is a federal agency within the U.S. Department of Commerce that is responsible for promoting innovation and industrial competitiveness. One of the ways it does this is by developing and disseminating standard reference materials, such as weights, that are used to calibrate and verify the accuracy of weighing and measuring devices.

What does it mean to be traceable?

Weights that are traceable to NIST standards are those that have been calibrated using a traceable reference standard, such as a primary mass standard, and are traceable to the international system of units (SI). This means that the weights have been measured and compared against a standard that is traceable to the SI, ensuring that they are accurate and consistent with international standards.

Why traceable weights are important.

Using NIST traceable weights is important for several reasons. First and foremost, it ensures that the weights being used are accurate and reliable. This is crucial for ensuring the accuracy of the weighing and measuring devices that they are used to calibrate. For example, if a truck scale is calibrated using weights that are not traceable to NIST standards, there is a risk that the scale will not provide accurate measurements of the weight of the trucks passing over it.

Benefits of nist weights?

In addition to ensuring accuracy, using NIST traceable weights also helps to promote consistency and comparability. By using weights that are traceable to the same reference standards, different weighing and measuring devices can be calibrated and compared to one another, ensuring that they are consistent and provide comparable results. This is important for applications where the results of different measurements need to be compared, such as in research and development or quality control.

Adhering to the regulations and standards is the best way to ensure that your scale is accurate. Following the NIST regulation it the way to accomplish this.

Closing Words

In conclusion, NIST traceable weights are essential for ensuring the accuracy and reliability of weighing and measuring devices. By using weights that have been calibrated and compared against traceable reference standards, it is possible to ensure that the devices are providing accurate and consistent measurements. This is crucial for a wide range of applications, from charging for the weight of goods being transported to conducting research and development. By using NIST traceable weights, you can have confidence in the accuracy of your measurements and the reliability of your equipment.

At American Scale we strive to bring you informed and useful content on all things scale systems related, including products from the top scale manufacturers. Be sure to check out our truck scale articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership. Also, take a look at our “Common Problems With Bench Scales'', to help prolong the lifespan on your scale.

How Much Do Truck Scales Cost?

HOW MUCH DOES A TRUCK SCALE COST?

As you consider the purchase of a new truck scale, price is often-times one of the first considerations.  As with many large equipment purchases there are many models and options which will impact the cost. So, how much do truck scales cost? The short answer to how much does a truck scale cost is $45,000 - $100,000.

First, let’s start with the initial purchase price of the truck scale.  Generally, truck scales are sold by independent scale dealers spread across the country. Most truck scale dealers will represent a number of different scale manufacturer brands.  Some common brands you will hear about: Rice Lake, Cardinal, B-Tek, Mettler Toledo, Emery Winslow, Fairbanks, Thurman, etc.  Your scale dealer can help guide you to the brand which will best fit your budget and application. Checkout this blog post when considering steel deck vs concrete deck truck scales.

PRICES FOR NEW TRUCK SCALES:

The standard truck scale system in the industry is an above ground electronic 70ft long & 11ft wide steel deck.  We will use that as the basis for pricing.  We will also focus more on electronic scales vs hydrauli . There are a lot of things to consider when pricing your scale.

There are two main packages you can choose from; a basic package or a turnkey package:

1. BASIC TRUCK SCALE INSTALLATION:

Equipment: This will include the truck scale weigh bridges, load cells, basic indicator, printer, and any other accessories you order such as a remote display. 

Foundation: This will not include the truck scale foundation.  You will need to coordinate for forming and pouring the concrete foundation.  The truck scale manufacturer will provide foundation drawings for you to use.  This will save you on cost.  The downside is that pouring foundations for truck scales can be difficult and requires it to be within ¼” per the drawings.  Bottom-line, ensure your concrete contractor is high-quality.  Pouring a truck scale foundation is more technical than just pouring a slab for a house or garage. To learn more details on truck scale foundation types checkout this blog post on build timelines.

Installation: This will include setting the truck scale on the foundation with a crane after it arrives via flatbed truck.  It also includes anchoring the truck scale, running all wiring, installing all load cells, and calibrating the scale. Finally, the scale service company will complete state weights & measures placed into service paperwork. To learn more details on the installation checkout this blog post.

Truck Scale With Basic Installation Average Cost: $55,000 - $80,000

2. TURNKEY TRUCK SCALE INSTALLATION:

Equipment: This will include the truck scale weigh bridges, electronic load cells or analog), basic indicator (stainless steel or washdown), printer, junction box, and any other accessories you order such as a remote display.

Foundation: This will include the truck scale foundation.  Included is basic site preparation, digging of piers, along with layout of wash-out slab.  The concrete is normally poured over 2 days.  One item to note is whether to add concrete ramps to your project or not, these can add over $10,000 in additional cost but are often necessary. Keep in mind that there are regulations on the steepness of the ramps; these rules are normally set by each state weights & measures department.

Installation: This will include setting the scale on the foundation with a crane after it arrives via flatbed truck.  Includes anchoring the scale, running all wiring, installing all load cells, and calibrating the scale. Completing state weights & measures placed into service paperwork.

Truck Scale With Turn-key Installation Average Cost: $95,000 - $115,000

To see what truck scales American Scale offer click here.

Steel Surcharges
As of early 2021, many truck scale manufacturers are implementing steel surcharges on their truck scales. This is due to surging steel pricing across the county as the pandemic has waned. These surcharges range from 5% up 15% depending on the specific manufacturer. This can add thousands to your truck scale project. A concrete deck truck scale may save some money as they contain less steel. However, keep in mind the scale decks often require rebar and the price for rebar has also increased dramatically. UPDATE: As of early 2022, steel surcharges continue to increase with many topping 25%. In addition, deliver times after ordering a truck scale are reaching up to 40 weeks.

Freight
The prices above do not include the freight cost to ship the scale to your location.  There is significant variability in freight pricing based on your location in relation to the scale manufacturer’s factory.  Also if the scale is 12 ft or wider it will often require escort cars the entire trip which increases the cost.  Some scale companies will quote fixed cost freight but most will provide an estimated freight cost range given the trucking spot rates change by the day.
Truck Scale Freight Average Cost: $2,500 - $4,500

Truck Scale Add-ons / Options:

There are number of truck scale accessories or options that you may need or be required to purchase. For example if you operate a truck scale in a location that is under the Mine Safety & Health Administration (MSHA) jurisdiction then you must have double-pipe guide rails on your truck scale, period. Or in most states the requirement is that for legal for trade truck scales you must have a scoreboard or remote display that a truck driver can see from inside their truck. To learn more about when a remote display is required checkout this blog post.

Other Considerations

Also you need to consider whether your scale will require connectivity to a network or computer system. You need to ensure your scale indicator has the necessary output built in to send the data whether ethernet, fiber optic, USB, serial, etc. We have a scale accessories page that can help you find what you need.

Bottom-line, make sure account for these additional options when computing the price for your new truck scale. During the lifespan of your scale ownership you will find that you may need certain accessories to add a level of ease added to your operation. These options are where you should lean on your scale dealer to assist as they have years of experience.

NOTE:
When considering the purchase price of a truck scale project, you need to also understand the long term costs associated with the scale. Understanding the weighing applications that will be used will definitely help you narrow down cost. These range from warranties, truck scale calibration costs, and general maintenance that will be required, to just wanting to know the differences between truck scales. Your scale dealer is your best source of information on these items. Be sure to ceck out our post about issues that can occur with truck scales. To learn more about truck scale warranties, check out The Guide To Truck Scale Warranties. Our Common problems with truck scales is a good article to look into as well.

5 Biggest Mistakes When Buying a Truck Scale

Truck Scale Buyers -

Don’t Make These 5 Common Mistakes

As a truck scale buyer, you need to make sure you avoid these common pitfalls. Too often one of these mistakes can torpedo and entire truck scale project. Don’t let that happen to you; review these top 5 mistakes and how to avoid them.

#1 Wrong location

Where to put your truck scale. Don’t put it in a low-lying area. Low lying areas are where all the water on the property will collect or at a minimum run through. Water and scales are never a good combination. Even with today’s hermetically sealed load cells, there are still multiple weak points on scale electronics that water will damage.

Second, a low-lying area will collect build-up. What do we mean by build-up? Build-up is rocks, dirt, sand, or any other material that will wash or blow under the scale. This build-up will cause major scale weighing issues. The scale platforms overtime will begin to sit on the built-up dirt and not the load cells. What does this lead to? A scale that weighs light and not accurately.

Bottom-line consider the topography when selecting a location for you truck scale.

#2 Wrong Foundation Type

Too often truck scale buyers think they want a pit style foundation. Pit foundations have their place, but they are the exception and not the norm. A pit foundation sounds good in theory since it doesn’t require concrete ramps, take up less space, etc. But understand a true pit foundation will cost in concrete work 2-2.5x the cost of an above-ground foundation.

In addition, a pit scale is covered by confined space entry regulations, meaning the cost for maintenance goes up significantly. A concrete pit for a scale is like a big bucket on your property that will collect water. This means a sump pumping system must be installed and that moisture can begin to rust the scale from the underside faster.

Bottom-line, unless you need a pit foundation for a specific reason choose an above- ground. You and your scale will be happier.

To learn more about the different truck scale foundation types see this blog post.

#3 Wrong Scale Installation Company / Dealer

The old saying you cant get all three (fast, cheap, and good quality) is applicable when selecting a truck scale installer. Whatever you do ensure you have good quality. A truck scale is a 25-year investment that can be ruined if installed incorrectly. Make sure your installer is certified/licensed in your state, has required insurance (WC, GL,etc.), and have a track- record of previous installations that they can show you.

You can mitigate all the other mistakes but if your scale is installed incorrectly the rest of your work & planning will be useless.

#4 Poor Project Planning

As with any construction project having a good plan is paramount to success. Your project plan should be a partnership between you and your scale installation company. There are a number of moving pieces when installing a new truck scale. When will the scale arrive? Who is coordinating the crane? Is the foundation poured and cured? Are the conduits for cabling/wires laid out? Is there 120VAC power run to where the remote display will go? Do you need building permits? Will the scale connect to a computer? The questions go on and on. Lean on your scale installer to lead the project but understand as the buyer you carry many of the responsibilities of whether the installation timeline is met.

As the buyer you will most likely need to provide 120VAC power to power the scale; without power the scale installer cannot complete installation of the scale, calibration of the scale, or set-up of the indicator. Bottom-line, select the right scale installation company and build a strong partnership with them to ensure an on-time, on-budget truck scale installation.

#5 Wrong Scale

Selecting the correct scale for your project is foundational. We have dedicated a couple whole articles to all the options you must select (deck type, scale length, scale width, electronic or hydraulics, digital or analog, etc.). One focus point is buying a scale that is paired to number of trucks you plan to weigh daily and their average weight.

Do not buy a light or medium duty scale if you plan to pound150 logging trucks each weighing 90k lbs+ everyday across your scale. Buying a heavier duty scale will never hurt you.

For learning which deck type to select see this blog post.

How Much Does A Turn-Key Truck Scale Project Cost?

Cost Of A Turn-Key Truck Scale Project

The installation of a new truck scale involves many different moving parts and pieces. Choosing the right scale and features along with project costs and timelines can become a bit overwhelming. Your scale company will have many questions which can affect the cost of your project. The fact remains that everyone wants to know the answer to a complex question – What does a turn-key truck scale installation cost? In this article, we will lay out what you can expect to be included in your turn-key project and how much you can expect to spend for different features.

Truck Scale Installation Labor & Calibration:

The first thing included on your quote would be a line for labor – installation and calibration. This typically runs between $4,000 and $7,500. If you have a new installation on a new foundation, the cost will be less. If you have a truck scale that you are replacing, the cost is usually a little higher due to the extra trips to your site and preparations made for the installation of your new scale. Installation and calibration will include all parts of your scale. The install team will also make sure that auxiliary devices are connected to include indicators, ticket printers, computer programs, kiosks, outside displays, and intercom systems. Conduit is typically installed by the contractors who you choose to build the scale house or wherever the scale operator will be located. Along with calibration, a “Placed into Service” form that the scale company fills out is sent to your state’s weights and measures office.  This ensures you are able to use your scale in a legal for trade application. 

Crane Cost

Cranes are often used to remove old scales and set new scales into place. Crane costs typically range from $2,500 to $3,500. If you are removing an old scale, the cost of freight to remove the old scale off site to a scrap yard is included in this cost, particularly if it is a steel deck scale.

Concrete Foundation Cost

Concrete and foundation work is a big part of your new scale cost. Most scale companies provide an experienced concrete contractor to perform the site preparations. Once the site is ready, the contractor will form and pour the ramps, approaches, and foundation. For more information on these items, reference the article in our Learning Hub entitled “What Are the Truck Scale Foundation Types” Soil samples and other factors can determine the type of foundation that you need. A typical above-ground scale foundation with ramps and approaches will typically cost $30,000. Ask your service provider how to pick the right foundation. If you have an existing foundation, scales can be customized and built to fit so that no concrete work is needed! This could save you thousands so make sure you discuss this with your scale company.

Truck Scale Cost

Truck scales come in different shapes, sizes, and materials. To understand more about truck scale costs, reference our article in our Learning Hub entitled “How Much Do Truck Scales Cost” As a reference point, a truck scale will typically range from $45,000 for a basic analog truck scale to $80,000 for a high traffic, heavy-capacity scale. Your truck scale cost will include all parts and hardware needed to make your truck scale perform correctly for many years. The options are endless so spend some time in our Learning Hub and get to know how truck scales will help your operation before selecting which scale you buy.

Freight Cost

The final piece of your cost is freight. Freight can range from $2,500 to $4,500 based on your distance from the manufacturer and your local permitting laws. All truck scales are delivered on a flatbed 18-wheeler that is typically oversized load overweight.

Total Cost Turn-key Truck Scale Project

So now the big question – What is the bottom line?

For a new truck scale installation, you can expect to see a turn-key project cost around $100,000 - $115,000. There are factors that you can keep this down for you which your scale company can help explain. If you are replacing an existing truck scale with no concrete work required, your cost will be around $80,000. Don’t let the number scare you! Buying a truck scale from a reputable manufacturer can give you a truck scale that will last for 25+ years.

Also check out our article “Truck Scale Installation: What’s Involved” for more details on what to expect. Also look into our articls Guide To Truck Scale Warranties

 Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

How Much Does A Digital Truck Scale Cost?

What does a digital truck scale cost?

You may have heard of digital truck scales, but what exactly is a digital truck scale?  In this article we discuss both what a digital truck scale is along with how much one would cost you.  Digital truck scales truly are the future so let's learn why that is.

Digital vs Analog Truck Scales:

Traditional analog truck scales use, as the name implies "analog" technology.  In basic terms the loadcells send analog signals to the scale indicator where it is converted to a digital signal and a weight is displayed.  In comparison, digital truck scales generally have digital loadcells where the conversion from analog to digital signal takes place at the loadcell.  This is important.  Since the loadcells are sending a digital signal to the indicator, they are able to send loads of additional data.  You may be asking what types of data?  Well, it can include angles of the loadcell, temperature, humidity, if the loadcell has an error, calibration data, and much more.  One of the biggest benefits is stored calibration data.  This means if a loadcell or indicator needs to be replaced the calibration data is stored in the system and can be "pushed" into the new loadcell.  This allows scale service companies to respond much faster and cheaper in a pickup truck vs. a heavy-capacity test truck.  It saves you time and money.  A second important benefit is accessing scale performance and maintenance data remotely.  This takes the form of web-based platforms that allow both truck scale owners and scale service companies to monitor loadcells from their computers.  If a loadcell goes bad, automated alerts via text or email  are sent out.   Bottom line, digital truck scales offer a number of advantages over their analog counterparts.

So What Does A Digital Truck Scale Cost?

So what does not change between a digital and analog truck scale?  Generally, the scale deck itself is the same between the two.  Whether it is a digital or analog loadcell the structural steel design is normally the same.  The real difference is in the loadcells not the scale platform itself. Because of all these advantages numerous scale manufacturers offer digital truck scales.  They include Mettler Toledo, B-Tek, Cardinal, and Fairbanks.  Some of these manufactures have only recently added digital truck scales to their offerings, such as Cardinal Scales, providing evidence that the shift from analog to digital truck scales is underway.  So, you have decided you like the features of the digital truck scale and want to purchase one how much will it cost you?

So how much does a digital truck scale cost, ball-park pricing is $55,000 - $90,000.  This is for the most common truck scale type sold in the USA; a 70ft by 11ft steel deck.  

Like any truck scale there are numerous options that when chosen will determine the exact price.  Examples include length of the scale, width of the scale, scale deck type, model, and accessories required.  

Digital Truck Scale Makes & Models:

Below are the main truck scale manufacturers and their digital truck scale offerings.  Each has slight differences in the exact technology they use.  Each will claim their best.  All we will say is that any make & model digital truck scale is better than an analog truck scale.

B-Tek Digital Truck Scales:

The flagship digital truck scale for B-Tek is the Centurion.  Although they offer digital technology on a few other models in their lineup.  The Centurion utilizes 77k lb capacity compression style loadcells.  Their patented TruDigital technology along with Nexia Live Monitoring Software are both powerful tools for the digital truck scales. B-Tek uses traditional junction boxes to connect its loadcells together. B-Tek’s digital technology comes through a joint-venture with Bilancia Group of Italy.

Cardinal Digital Truck Scales:

Cardinal is a recent entrant to the digital truck scale industry.  Cardinal utilizes their patent SCBD Series SmartCell Digital loadcells along iSite remote monitoring.  They are used on the Cardinal Armor truck scale lineup.  Cardinal uses a SCBD 75k capacity double-ended shear beam loadcell.  This makes it unique as no other truck scale manufacturer offers this type loadcell in a digital version.   The Cardinal digital system does not require a junction box and uses a daisy-chain approach to link all the loadcells.

Fairbanks Digital Truck Scales:

Fairbanks Scales offers a hybrid digital system.  The loadcells are analog technology; however, utilizing their Intalogix junction box system they convert the analog loadcell signals to digital signals prior to being sent to the scale indicator.  The loadcells used have a 66k lb capacity rocker-column design. They are made by Minebea Intec.

Mettler Toledo Digital Truck Scales:

Mettler Toledo has offered digital loadcell technology in their truck scales for over two decades.  Their VTS231 model truck scale features their PowerCell PDX technology.  They utilize 100k capacity compression style digital loadcells.  Similar to the Cardinal, the Mettler Toledo digital system does not require a junction box and uses a daisy-chain approach to link all the loadcells.

 

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

What's Involved In A Truck Scale Installation?

What’S Included in a truck scale installation?

So you picked out your new truck scale and are ready to start weighing trucks. However, before any weighing can start, your new truck scale needs to be installed. Installation of a truck scale includes a number of different components that your local scale dealer will complete. The main areas of the installation include setting the scale, anchoring the scale, running all cabling, wiring the scale, setting up peripheral devices, calibrating the scale, and placing the scale into service. Below we will review each area:

1. Setting The Scale:

Prior to setting the scale your foundation will be complete. To learn more about truck scale foundations check out this blog post. Setting the scale involves using a crane, loader, or other lifting equipment to offload the truck delivering the scale and placing the scale modules onto the foundation. Setting the scale can be a lengthy or short process depending on whether there is easy access to the foundation. For example, setting a scale on a foundation located in an open field is a quick & easy process; however, setting a scale inside the tunnel of a feed mill facility is much more difficult due to height restrictions. Your scale company will also be the ones to arrange the logistics of the truck and crane. Once the truck scale is set on the foundation, it’s time to begin anchoring.

2. Anchoring The Scale:

After the scale modules are set on the foundation they will require adjustments to ensure they are aligned properly. Large breaker bars and interconnect bolts will help ensure the modules are in the correct location. Once the scale is in the correct location it will be set onto the base plates and load cells. At this point, the scale technician will begin drilling anchor bolt holes in the foundation and then installing and tightening the anchor bolts. At the end of anchoring, the scale should be secured to the new foundation and centered + level with the approaches & end-walls. Also any checking or adjustment bolts will be installed and set to the correct tolerances.

3. Wiring The Scale:

Depending on what brand and type scale you purchased, the wiring of the scale will be different for each. For most electronic truck scales, each loadcell’s cable requires running it to the junction box. Here, each loadcell cable will be landed on the internal board. The color coding for the wires on loadcells varies dramatically between different manufacturers, this is where a trained scale technician comes in. The final step is attaching the homerun cable to the junction box and running it to where your scale indicator will be located. At this point your truck scale is on the foundation, anchored, and wired to your scale indicator.

4. Setting Up Peripheral Devices:

In addition to the truck scale a number of other devices are normally connected to the scale indicator. Most states require legal-for-trade truck scales to have a remote display or scoreboard, to learn more about the requirements checkout this blog post. The scale technician will wire the indicator and program it to send the weight data to the remote display so the truck driver can see his weight while on the scale. Printers are another common peripheral device. Connecting the printer involves wiring the scale indicator to the printer and setting up a number of parameters to ensure the scale ticket prints correctly. Other peripheral devices can include outputs to HMI / PLCs, photo-eyes, etc.

5. Calibrating The Scale:

This step of the installation process involves calibrating your new truck scale to ensure it is weighing correctly. Your scale company will bring a heavy-capacity test truck on-site to use for this task. Known weights such as 20,000 lbs will be placed over each load cell and section during the calibration procedure. At the end of the calibration your truck scale will be weighing accurately. You will also receive a truck scale test report from your scale company outlining the results of the calibration.

6. Placed Into Service:

The final step that is required is if your truck scale is being used in a legal-for-trade operation then it will need to be placed into service with your state. This step is completed by your scale company and ensures you are legally allowed to start using your new truck scale.

As you can see, the process to install a truck scale has numerous steps and can range from simple to complex. To learn more about the cost of a truck scale, checkout this blog post.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

A Guide To Selecting A Wash Down Scale

A Guide to selecting a wash down bench scale

Scales are used almost everywhere, sometimes in austere conditions or in demanding environments. Washdown scales are designed and built to withstand wet environments and harsh industrial conditions. As the name indicates, these scales have easy cleaning access after use and are constructed to prevent liquids and particles from penetrating internal scale components. Washdown scales are found in various industries and applications.

What does it mean for a scale to be “washdown”?

Washdown DOES NOT EQUAL waterproof.  Different scales and electronic components have different protection ratings; these ratings for washdown scales can vary by make and model. Ingress Protection, or IP ratings, highlights the protection rating from elements like water and dust as well as cleaning chemicals. Scales with low IP ratings can generally resist spills or humid environments while scales with higher IP ratings can be washed with heat and pressure.

Types of washdown scales

Washdown scales are generally made of stainless steel and they come in a range of shapes and sizes.

 -          Bench scales
Washdown bench scales tend to be small to medium -sized. These scales can have capacities around 300 lb and lighter; the readability, or division size, is dependent on the scale capacity. Washdown bench scales are useful in food and beverage, pharmaceutical, specialty chemical and several other industries. The scales are often found in warehouses, laboratories and commercial environments. To see different models of bench scales click here.

 -          Floor scales
Washdown floor scales are larger than bench scales, usually 3 by 3 and larger. They are durable and handle heavy loads up to 10,000 lb. Washdown food scales are often used in food processing areas, commercial warehouses and dockyards for weighing items in bulk. To see different models of floor scales click here.

 -          Tank scales
Stainless steel weigh modules and load cell systems can be installed under tank legs for weighing bulk quantities in docks or in food processing facilities. They're built to withstand demanding conditions in harsh environments with sealed components that are protected from water and dust ingress. Tank scales are built with checking to handle stresses from agitators and motors.

 -          Retail scales
Washdown retail scales are compact and legal for trade. They offer all the usual functions of approved scales, such as a display that shows weight, price per unit and total cost, a rear-mounted display that customers can see, and portability for convenience.

Which industries use washdown scales?

The food and beverage industry has high standards for hygiene as well as frequent audits. In order to produce the best possible product in sanitary environments, food producers always use washdown scales in production areas as well as other wet areas. The medical and pharmaceutical industries also use washdown scales to maintain clean and sterile conditions.  Retail stores that sell food use washdown scales to clean between customers or to avoid cross contamination. Manufacturing facilities, logistics warehouses and construction sites with significant dust and debris use washdown scales given the austere conditions.

Load cell system: electronic versus hydraulic

One of the most important considerations when purchasing a wash down scale is what type of load cell system to get. The two primary washdown scale types have either electronic load cell systems or hydraulic load cell systems.

Electronic load cell system: electronic scales work based on simple strain gauge circuits. These strain gauges are installed inside the load cell body. The load cell connects to the summing card or digital weigh indicator via four conductor or six conductor wire. Components in this system include:

o   Load cell(s)
o   Electronic cables
o   Junction box
o   Summing card (PCB)
o   Digital weight indicator

Hydraulic load cell system: hydraulic scales work based on hydrostatic pressure. There are no electrical components under the scale. The load cells are connected to a hydrostatic totalizer via stainless steel tubing. The system is pumped with hydraulic fluid and the totalizer converts the pressure to weight via a single strain gauge load cell. Components in the system include:

o   Load cell(s)
o   Stainless steel tubing
o   Hydrostatic totalizer
o   Digital weight indicator

In nearly all washdown applications, hydraulic scales are far superior to electronic scales. For starters, the hydraulic scales are completely immune to water damage. To learn more about hydraulic load cells checkout this blog post.

 Summary

Washdown scales are great for a variety of reasons – they are built to work in challenging conditions and environments. Their design both improves and speeds up cleaning, keeping the scale reliable. Great clean-up prevents material build up, cross contamination, and growth from mold or bacteria. The IP rating is key to knowing exactly how protected the washdown scale is from water and dust. The folks at American Scale have seen these scales in hundreds of different environments. We’ve seen what works as well as what doesn’t – we are here to help you make decisions regarding your next washdown scale.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

How To Choose A Bench Scale

How to choose a bench scale?

Bench scales are widely used across industries in a broad range of applications. They are usually packed with useful features and functions to optimize the weighing experience. Bench scales have a compact footprint, often they are small enough to fit on counters, workstations, carts, and tables. Common places you’ll see a bench scale include kitchens, veterinary offices, retail shops, grocery stores, or industrial settings. To learn more about bench scale basics checkout this blog post.

What is a bench scale?

A bench scale is designed to be placed on a table or counter during weighing. They have large platters or weighing pans and they take up a small footprint. Many bench scales come with an integrated indicator and keypad while others have a detachable indicator that is usually mounted on a column or a nearby wall. Bench scales are designed to weigh a broad range of products. In general, they are affordable and easy-to-use. They provide the features and precision needed for most businesses, offering a professional weighing solution to those on limited budgets. There are so many different manufacturers out there you can find a variety of capacity, readability, and platform size options.

Examples include:

Bench Scales Applications

The most frequently used applications for bench scales include checkweighing and counting. Bench scales are ideal in assembly or manufacturing shops; the scales weigh raw materials, count pieces before packaging, or checkweighing during quality control. Bench scales of varying capacities can be used in shipping and receiving operations. These scales weigh boxes, ensuring fair and accurate transportation costs. The scales fit on counter-tops and easily communicate with computers and printers. Bench scales can also be used in production processes, to weigh ingredients when making small batches of things like food, soaps, and candles. Grocery stores, cafeterias, and other retail shops use bench scales to weigh foods, candy, and ice cream.

Available Features

To ensure easy cleaning, look for a bench scale with a stainless steel platform and sealed keypad. Overload protection ensures the scale isn’t compromised by excessive weight, and can help it last longer. When used in quality control, checkweighing scales allow users to set weight limits and visually see whether the scale is weighing over or under the limit. Some scales have audible alarms, in addition to the visual alarm.

 Bench scales can also include a rechargeable battery in addition to an AC adaptor. The rechargeable battery provides power to the scale and allows users to move the scales around or use them in places where electricity isn’t easily accessible. It is important to know how long the battery can operate without being recharged when spec’ing out the scale. Other options include a backlight to aid in visibility and/or automatic power-off features to save on power consumption and increase life.

 Ease of connectivity is also an important consideration for some bench scale uses. For the most part, bench scales are easy to integrate into other software systems (like a shipping operation). The scale should come with an RS-232 and/or USB interface to connect to computers, printers, and other peripheral devices. The digital weight indicator can also be programmed to follow a specific workflow and capture variable data entered by the user. This database can then be saved locally on the scale or the data can be shared across a network.

One of the most important considerations is to make sure and check that the capacity and readability suits your requirements. This, along with other features and functions (such as checkweighing, parts counting, etc) are important points that must be considered prior to purchase. If you need help finding the right bench scale, or you simply want to learn more, you can contact us.

Learn more about the bench scales that American Scale Offers here

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

Functions of Analytical and Precision Balances

Analytical Balance: What Are the Uses?

Most people have never had the requirement to use more than the basic weighing function of a scale. However, many weighing balances are capable of much more advanced functions which can simplify a variety of complicated tasks. This article  presents an informative summary of some of the main functions of weighing balances, enabling you to get the most out of your weighing balance.

What is a Weighing Balance?

A weighing balance is an instrument that is used to determine the weight or mass of an object. It is available in a wide range of sizes with multiple weighing capacities and is an essential tool in laboratories, commercial kitchens and pharmacies. To learn more checkout this blog post.

What is the difference between a Precision and Analytical Balance?

Precision and analytical balances are specific types of weighing balances which measure much smaller masses than the average scale. An analytical balance is the most precise because it has a higher readability, measuring to the nearest 0.0001g. Analytical balances usually include draught proof weighing chambers for precise measuring of mass and are often used alongside anti-vibration tables to increase accuracy. A precision balance on the other hand typically measures to the nearest 0.1-0.01g but has higher capacity. Both can measure capacities from hundreds of grams to kilograms.

What are the Main Weighing Balance Uses?

Balances are generally more sophisticated and precise than scales and are therefore commonly used by professionals for advanced scientific weighing in the following industries:

-          Pharmaceutical
-          Educational
-          Food and beverage
-          Chemical
-          Industrial 

Due to their high precision and advanced technology, precision and analytical balances are used in laboratories to efficiently perform specific tasks such as weighing test materials and sampling amounts, formulation, density determination, purity analysis, quality control testing and material and conformance testing. These analytical balance functions will be explained in detail in this article.  Balances with higher capacities are not only used in laboratories but can be used to test larger high-capacity weighing materials such as in construction sites.

Function : Formulation
Description: Formulation (AKA recipe calculation) is a selectable weighing mode that is available on more advanced precision and analytical balances. Formulation enables the user to store, add and calculate the weights of multiple ingredients, providing a total weight value. Formulations must be repeatable, so it is critical to accurately weigh each ingredient or component and ensure the proper ratio of each within the formulation. Many semi-micro, analytical and precision balances offer both simple formulation and database formulation, which can be used to store custom formulae and recipes, making it easy to recreate a formulation. Formulation can be used in a wide variety of weighing balance applications, including in pharmaceutical labs, research and development labs, new product development, food production, beer brewing, paint mixing and even mixing ink for screen printing.

Function: Density Determination
Description: The accurate determination of the density of a substance is a critical part of the research process in sample analysis. Density is also an important parameter in quality control, as variations in the density of a solid for example can indicate air pockets that could jeopardize the integrity of the material. Similarly, a change in density could indicate that a liquid or solid is impure and contains contaminants. Calculating density seems straightforward as it simply involves dividing the mass of the matter by its volume. However, in practice, this process can be complicated, tedious and inaccurate. Luckily, density can be determined much more quickly and easily using an analytical balance, using a variety of available methods. One of the most popular methods is the buoyancy technique, which can be carried out in the straightforward manner of using an analytical balance fitted with a special density kit. The most common setup involves a beaker placed on the balance with one weighing pan above the beaker and another suspended inside. The beaker is filled with a reference liquid of known density such as water, ethanol, and sodium chloride solution. The basic steps involved are to weigh the sample in air, then weigh the sample again in the reference liquid and finally calculate the density based on these measurements.

Function: Quality Control Testing
Description: Quality checks that include weighing must be applied to random samples from every production batch. Ten or more samples should be weighed and each piece has a correct weight, so the measurement must fall within these tightly defined tolerances and the scale must not show any abnormalities. Therefore, a highly accurate and reliable balance is required. Quality control tests can be carried out using plus and minus weighing, which is a very simple weighing function that is possible on any scale that has a TARE function and supports negative weight values. It is ideal for comparing items to a known weight for quality control purposes. Each scale works differently, but the basic procedure involved placing a weight or sample on the scale that weighs the ideal amount or target weight and pressing TARE to zero the scale. The original sample must then be removed and the samples added to be checked one by one. This will result in the scale displaying the deviation (positive or negative) from the sample weight.

Function: Parts Counting
Description: A common challenge in the manufacturing or packaging industry is determining whether or not the number of parts in a batch is accurate. The traditional way is to count them by hand, which is time consuming and can entail human error. Using a balance however can make the process faster and more accurate. Parts counting is an advanced feature that is available on a variety of scale types, allowing the loading of a collection of identical items onto the scale and the automatic counting of how many are present. The feature works by supplying the scale with a sample of the items to be counted so that it can work out the weight of a single unit. It then uses this value to count items quickly. This is used extensively in quality control applications for counting manufacturing parts or for counting finished products quickly.

Function: Dynamic Weighing
Description: Dynamic weighing refers to the weighing of moving objects such as animals. It is often necessary to weigh live animals to adequately monitor their health and baby animals must be weighed frequently to ensure that they grow up healthy. The dynamic weighing feature on a balance can take accurate measurements when the subject is moving. Dynamic weighing works by measuring the average weight based on the force exerted by the animal over an extended period of time. Once the internal calculation is completed by the balance, it will hold the value

For more information about any of the above balance functions, or to find out which weighing balances could benefit your business, contact a member of our team today. We would be happy to help. Checkout the balances we offer here.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

What Is A Microbalance ?

What is a microbalance?

A microbalance is a class of balance designed to measure the smallest samples, often in the sub-microgram range. The instrument is considered to be the highest precision of all kinds of lab balances.

A microbalance consists of two components - one component containing the electronics and another component containing the precision mechanical measuring cell. The separation eliminates the effects of temperature on the weighments.

Microbalances offer a capacity of up to 10.1 g with readability down to 1 µg (0.000001g). Ultra microbalances offer an incredible full resolution of 61 million digits, with a capacity of 6.1 g and 0.1 µg readability (0.0000001g). This high sensitivity in microbalance design allows for the weighing of sample quantities with weight as low as 30 μg. 

Microbalances and ultra microbalances are frequently used in:

-          Product testing
-          QA labs
-          Chemistry labs
-          Mining
-          Medical device research (to check critical component uniformity)

Checkout this blog post to learn more about where and how microbalances are used.

Operational considerations:

Microbalances are extremely sensitive – environmental influences and user interaction can significantly affect measurement stability and accuracy. All vibration sources should be eliminated and air currents, dust, temperature/humidity fluctuations should be minimized to obtain peak performance. Microbalances should be used in environments with stable temperature and humidity. The balance should be away from vents, windows, and doors. A solid, dedicated workbench free from drafts and high traffic areas is the best location for the balance.

On first use, let the microbalance “warm-up” for at least six (6) hours to stabilize at ambient conditions.

Samples should be acclimatized to room temperature and should be handled with tweezers. When placing the sample onto the microbalance, the door should be opened to a minimum degree, for as short a time as possible.

Always wear gloves while working with microbalances to avoid fingerprints and oil from hands. These natural oils from the body can have an impact on the results. To start weighments, open the door and place a container on the pan using tweezers. Close the door and allow the weight value to stabilize. Tare the microbalance to capture the weight of container or weighing boat. Dose the sample outside the weighing chamber to avoid spills in the balance and then place the sample on the weighing pan. Close the door, wait for stability, and record the net weight. Repeat the procedure until desired weight is reached. A microbalance is highly sensitive to movement - do not touch the bench while waiting for the balance to stabilize. Clean the balance, tools and workspace after each use.

Calibration

The accuracy of a microbalance is dependent on accurate calibration - performed by a qualified service provider only. Quality service providers will produce a calibration certificate indicating that the microbalance is working correctly. Users should routinely test the balance to detect potential issues in performance within a calibration interval.

It is highly recommended that microbalance users work with a calibration laboratory that is ISO 17025:2017 accredited. This accreditation provides the calibration laboratory’s scope and procedures.

Checkout the balances we offer here.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

The Main Components Of A Truck Scale.

Anatomy of a Truck Scale

When things go awry with your truck scale, it can be difficult to understand the technical lingo your scale technician might use when diagnosing the issues. Knowing exactly how your truck scale works will make you a better-informed consumer when you need to repair a part on or replace it entirely.

There are many different components in a truck scale that work together to provide an accurate weight. The scale contains a combination of mechanical and electrical components working together to provide a stable weighing environment. Not all of these components are found in every type of truck scale, however. The three main types of truck scales you’ll find today are electronic, hydraulic, and mechanical (although there are fewer and fewer mechanical truck scales left each year).

Mechanical Components

Most of the mechanical components on a truck scale are located outside with the weighbridge. Fifty plus years ago (and older), most of the truck scales installed were completely mechanical pit style truck scales. Fully mechanical truck scales generally consist of the following:

• variety of large levers (carbon steel or cast iron)

• pivots and bearings

• stands and chairs

• weighing beam inside the office or scalehouse

If you had an issue with a mechanical truck scale, more often than not a cast part was broken or a weld broke loose on a fabricated part.

Nowadays, most of the truck scales you find installed are either electronic or hydraulic. The only “mechanical” parts on these types of scales consist of the following:

• the weighbridge itself (usually split into multiple panels)

• base plates, top plates, shims

• pins, nuts, bolts, etc (used to prevent motion or keep things tight)

• hardware related to checking / position alignment

Load cell system

The load cell system is the most important part of your truck scale and it is often where the most issues occur. To better illustrate our point, we will consider a standard 70’ truck scale. Whether electronic or hydraulic, this length scale will usually have eight (8) load cells and a summing component.

In an electronic truck scale, you will have eight (8) electronic load cells. Each individual load cell will have a strain gauge encased in the body of the load cell. Often, these load cells have more advanced computer boards in the body of the cell as well. In addition to the strain gauge, each load cell will have a cable protruding from one end, generally 30 – 60 feet long. The cable is often made of six (6) conductors, or individual wires, a braided shield, and a PVC jacket that is sunlight and moisture resistant. The heavy-duty jacket ensures good abrasion resistance as cables continually wear. The eight (8) individual cables from each load cell terminate on a summing board which is enclosed in a watertight housing. There can be two summing boards with four load cells each and an interconnect cable connecting the two boards. To learn more about electronic load cells checkout this blog post.

On a 70’ hydraulic truck scale, you will still have eight (1) load cells. These load cells are completely immune to lightning and water. The load cells are connected to a hydrostatic totalizer via 1/8” copper (or stainless steel) tubing. The tubing connects to the load cells and totalizer with special fittings. The totalizer converts hydrostatic pressure from each of the eight (8) load cells into an electronic signal through the single compression style electronic load cell which is installed at the bottom of the totalizer stack. To learn more about hydraulic load cells checkout this blog post.

Homerun cable

The homerun cable is the main artery that connects the scale to the digital weight indicator. Similar to the load cell cable, the homerun cable is often made of six (6) or eight (8) conductors. The homerun cable generally has a braided shield and a PVC jacket that is sunlight and moisture resistant. The lower the gauge of the homerun cable (lower gauge = fatter cable), the longer distance you can have between the truck scale and the digital weight indicator.

At the end of the day, the purpose of the homerun cable is to provide the input voltage (excitation) to the load cell system, and then to return the output voltage (signal) back to the digital weight indicator.

Digital weight indicator

The digital weight indicator is the brains of a truck scale. The indicator provides the input voltage (excitation) to the load cell system; receives the output voltage (signal); and converts the analog signal to a digital signal via the A-D board (A to D or analog to digital). The digital signal is then displayed on the display board showing the weight currently on the scale.

The indicator is also where you connect all other cables into the system. The most common cables connecting to the digital weight indicator include:

• Power (usually 120VAC)

• Homerun cable

• Communications cable (to connect to peripheral devices)

• Copper grounding cable

More often than not, truck scale users will identify that they have a problem with their truck scale because the indicator will not be displaying the proper weight. To see what indicator we offer click here.

Peripheral devices

There are a variety of devices you can connect to your truck scale. The list below covers the majority that we see in the field on a day-to-day basis.

- Printers: print inbound / outbound weight tickets for drivers. Includes truck number, date and time, as well as the gross, tare, and net weighments

- Remote displays / scoreboards: the devices are connected to the indicator via two (2) conductor communications cable. The remote display receives a digital RS-232 signal from the indicator and displays an exact match of the weight. Occasionally, truck scale owners will have issues with their scoreboard and not the scale. Scoreboards have a variety of electrical components that are susceptible to failure. Checkout this blog post to learn more about whether you are legally required to have remote display for your truck scale.

- PCs: nowadays everything is connected. Scales are being connected to PCs via serial cables (RS-232), ethernet cables, and USB. The data streaming into the PC must be interpreted by the computer and there must be a good path for the data to travel

-  Ticketing software: There are several different types of software available and these are generally industry specific. The software can provide basic ticketing and inventory management. Depending on the package you get, you can also do all of your billing and accounting integration through the software

- Notification devices (horns, stack lights, buzzers, etc): you can connect a variety of devices to the indicator, and these devices can provide an audible or visual alert that there is weight on the scale

- Intercom systems: there are many intercom products on the market today for truck scales. Not many are high quality. Due to noisy truck engines (and surrounding ambient noise), the best intercom systems have noise cancellation features.

-  Gates: Gates can be controlled by truck scale indicators based on certain triggers. Once a certain trigger is achieved, the indicator will communicate with the gate to open / close. We often see this type of set up with pay to weigh operations.

- Guard rails: Guard rails are an instrumental part of every truck scale. Most truck scales sit 18” or more off the ground. Drivers are notorious for driving their semis and dump trucks off the side of the scale and that can cause substantial damage to the mechanical and electrical components of the scale. To prevent this from happening, truck scale owners can order their scale with guard rails or install aftermarket ones. Guard rails range from:

•    Standard 8” high (safety yellow or matching the scale)

•    24” + dual pipe guard rails (primarily used on sites regulated by MSHA)

•    DOT style guard rails

•    Custom guard rails: as an example, American Scale builds guard rails out of 8” schedule 40 pipe. This set up is so stout, it either guides the truck(s) back onto the scale or damages the vehicle, saving the scale.

 To see what truck scale accessories and peripheral American Scale offer click here.

How American Scale can help

When functioning properly, these parts seamlessly work together to keep truck scale weighing accurately and precisely, time over time. However, sometimes one or more of these components can malfunction, which can stop the entire process and interrupt your life.

The expert technicians at American Scale have seen it all in our 75 years serving the Southeast and we understand how detrimental a malfunctioning truck scale can be, especially when you have long lines of trucks backed up. If your truck scale isn’t working correctly or you suspect it’s not accurate, contact us today so one of our experienced technicians can diagnose the problem and have your system back up and running in no time!

Finally when it comes to purchase a new truck scale checkout our wide range of options we offer.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

Axle Scale vs Full Size Truck Scale?

We are often asked what are the differences between a full size, say 70ft truck scale, and an axle scale.  There are few key features that differentiate an axle scale from its large brother.

What is an axle scale?

As the name implies an axle scale is a weighing system designed to weigh the individual axle groups.  The weighments are completed one axle set at a time and then all the axle weights are summed to provide the total gross weight of the truck.  This is much different than a full size truck scale where the entire truck is weighed at one time.

Legal For Trade:

If you are using your scale in any legal for trade weighing operations then an axle scale cannot be used.  Axle scales are not considered Legal For Trade.  This is because as each axle group is weighed individually there are slight errors and therefore the overall accuracy of the scale is not within national testing standards.  Bottom-line, if you are looking to weigh trucks legal for trade then you can use an axle scale.

Benefits of an axle scale?

Although axle scales cannot be used legal for trade they work well in many situations.  They are great for gathering weight data to ensure trucks don’t leave a facility overloaded per DOT standards.  They also take up significantly less space than a full size truck scale.  This is a huge advantage for facilities with limited real estate to locate a scale.  The footprint for an axle scale is only 33% of a full size truck scale.  Axle scales are also more economical.  This is because the scale itself is much smaller and requires less materials to construct.  Similarly, any concrete foundation work is much less with an axle scale vs a full size truck scale.  Finally, not all axle scales require installation requiring concrete foundations.  Many can be installed on existing flat pavement and are therefore easier to install and move in the future if needed.

Axle Scales & Weigh-in-Motion?

A unique benefit of an axle scale is their ability to offer weigh-in-motion.  This means the truck does not have to stop on the scale, instead they drive over it at a slow speed and the scale does the rest.  Although the accuracy is slightly less, weigh-in-motion provides operational benefits since more trucks can be weighed faster since each truck does not have to stop.  Most weigh-in-motion axle scales boast 1-2% accuracy.  Keep in mind that not all axle scales offer this feature.  Many axle scales are simply static scales that sum of the total axle weights at the completion of all axle groups being weighed.  

Popular Axles Scales

There are a number of manufacturers of axle scales.  Of note is InterComp Scales, B-Tek Scales, and Cardinal Scales.  Each has their own models and options; see below for a few popular ones. Also checkout our Axle Scale page.

Intercomp

Intercomp LS-WIM Axle Scale

Intercomp AX900 Axle Scale

B-Tek

B-Tek AX300

B-Tek Ax200

Cardinal

Cardinal 760PS Axle Scale

Cardinal SWIM Axle Scale

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.

Do I Need A Truck Scale Scoreboard?

So you just purchased and had your scale service company install your brand new truck scale.  Then you are asked whether you would like to have a remote display for your truck scale?   Depending on your experience with truck scales your first question might be “What is a remote display”?  Second question you might ask is do I have to have one?

In this blog post we will help answer both of these questions and more.

What are remote displays?

Remote displays or scoreboards are large digital displays that show the weight data from your scale indicator.  They are normally mounted to a pole or other stand so that a truck driver can see his/her weight when on the scale.  This is important because most times the truck driver can not see the scale indicator since it is located inside an office or scale house. 

What’s needed to make my remote display operate?

In order for your remote display to work you will need a few components.  First you will need a source of communication between your scale indicator and the remote display.  Most often this is via RS-232 protocol via a wire communication cable.  Less prevalent is wireless options that require a transmitter and a receiver.  The wireless option eliminates the need to run hard wire cabling which can be beneficial if you have large distances / parking lots / other obstructions between the indicator and remote display.  Second you will need an electric power source to run the remote display.  Normally a standard 110VAC outlet/ receptacle is all that is required.  Finally, you will need something to mount the remote display onto.  Metal poles are often used and are a great option.  More economical are wood poles.  Also an option is mounting the remote display to the scale house itself.  The main considerations for mounting are that the remote display is secure and will not move in the wind and that the location allows for the truck driver to have a clear unobstructed view.

Do I have to have a remote display?

The answer is it depends.  First it depends if you are using your scale in a legal for trade operation.  If you are using the truck scale in a LFT operation then most likely you will need a remote display.  On the flip side if you are not using your scale in a legal for trade operation you are not required to have a remote display.  Second it depends on the state in which the scale is located.  So, if you are using your scale in a LFT operation then you must adhere to your state's weights & measures regulations.  As an example, in the state of North Carolina remote displays are required for all truck scales.  In the state of Virginia, they are also required and they must display “00” when the scale is empty; displaying only one zero “0” is grounds for the scale being rejected.  As a general rule and for improved operations overall we always suggest truck scales have a remote display.

What options are there for remote displays?

Remote displays come in a range of sizes, shapes, and finishes.  The most common is the 4-inch remote display.  This means the digits when displayed will be approximately 4 inches tall.  Other common sizes are 2-inch and 6-inch.  In addition to the size, remote displays can also have integrated red/green lights.  They are useful when needing to signal truck drivers when to pull onto and off of the truck scale.  More advanced remote displays are also capable of displaying text / words not just numbers.  This allows for messages to be flashed to truck drivers such as instructions on how / when to pull onto the scale.  To learn more about the remote displays American Scale offer checkout our scale accessories page.

Closing Words

At American Scale we strive to bring you informed and useful content on all things scale related. Be sure to check out our legal for trade truck scale system articles about truck scale foundation or how much do truck scales cost. We even have a guide to warranties. We also have articles on scale accessories, common problems to prolong your scales lifespan, weighing applications as well as what scale indicator works best with your junction box. To learn more about bench scales, it would be good to check out our other articles such as “Bench Scale Basics'' and “How Much Does A Bench Scale Cost?”. These articles will help with the basics of bench scale ownership.