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Load Cell Calibration

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During load cell calibration, a device with a standard measurement is attached to the transducer. Its reading is compared to the reading of the load cell; ideally, both the calibrating device and the transducer will have the same measurement. If not, the operator makes the necessary changes and adjustments before measuring again to ensure that the values are identical. Read More…

Load Cell Calibration Load cell calibration is a process through which a load cell is adjusted to become more accurate and precise in its measurements. A load cell is a transducer that converts a load, or force acting upon it, into an analog electrical signal.
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Leading Manufacturers

West Conshohocken, PA  |  610-825-3310

For over 40 years, Strainsert Company has been an industry leader in manufacturing calibration services. Our goal is to provide calibrating services that are thorough and accurate, and we have experience serving a variety of applications.

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Strainsert Company $$$

North Haven, CT  |  203-484-3707

Custom Calibration Inc. specializes in on-site and laboratory calibration which will keep costly equipment downtime to a minimum and maximize your overall productivity. We have over 30 years of experience providing calibration services for mechanical, dimensional, scale, torque, humidity, and many more applications. Our company’s mission is to achieve total customer satisfaction by providing prompt, precise, tailor-made calibration solutions to fit your specific needs.

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Custom Calibration Inc. $$$

Garland, TX  |  972-278-7878

Accura Calibration is a full-service calibration lab with a very extensive list of capabilities. Our NIST Traceable calibration services are timely & accurate, and we maintain ISO 17025, ISO 9001, ANSI Z540.1 and ANSI Z540.3 certification/accreditation.

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Accura Calibration $$$

Grand Rapids, MI  |  800-348-5701

Grand Rapids Metrology is Michigan’s premier source for measurement and weighing solutions! Our dedicated service team offers an industry-leading scope of capabilities from ISO 17025 certification, to heavy capacity overhaul services, to custom solutions engineered to fit specific business needs. Let GRM’s 95 years of experience and technical expertise work for you.

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Grand Rapids Metrology $$$

Newport News, VA  |  866-487-3227

ACR performs ANSI/Z540, A2LA and ISO 17025 calibration services, which include, but are not limited to, pressure, vacuum, fiber and electrical. We also hold NAVSEA certification. We offer calibration testing services and software as well as instrument calibration. On-site or off, ACR can support your needs.

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ACR Technical Services, Inc. $$$

Cincinnati, OH  |  800-686-3730

CPI’s calibrations are performed in our environmentally controlled laboratory by our highly trained staff of technicians. If you have a high volume of calibrations, we can arrange for a permanent on-site technician to assume all responsibilities of operation or establish an on-site calibration department. We offer competitive pricing, fast professional service & detailed traceable certifications.

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Cincinnati Precision Instruments, Inc. $$$
placeholder image Strainsert Company Custom Calibration Inc. Accura Calibration Grand Rapids Metrology ACR Technical Services, Inc. Cincinnati Precision Instruments, Inc.

This process of calibration is important because accurate and precise readings from the load cell are important and vital to its proper functioning. An incorrect measurement of the electrical signal may be a safety hazard or could lead to equipment damage. Load cells are generally part of larger systems so other decisions are made based on the reading provided by the transducer which is why they must be checked and calibrated regularly.

Regular calibration also maintains quality standards. Calibration is used not only for load cells but with a wide range of equipment and machines as well as for pressure, speedometers, temperature and torque. Load cells are frequently used for large scale weighing in hoppers, for trucks, tank level, in-line force measuring and weighing research.

Load cells are available in a variety of styles including S-beam, platform and single point, low profile, compression, compression/tension, bending beam and canister. Some are designed to read the force acting on a button while others have larger parts that are bent; all rely on the physical deformation of strain gauges.

As force is applied to the load cell, a strain gauge is bent. The strain is converted into electrical signals, which are amplified; typically one load cell will have at least four strain gauges. The output is then entered into an algorithm to calculate how much force was applied to the transducer. The gauge inside has a spring-like quality that allows it to bounce back after a load is applied. If the loads are changed abruptly, the gauge may vibrate quickly, a consequence called ringing.

During calibration, a certain load with a known exact weight is placed on the load cell. Like other devices that must be periodically calibrated, the load cell is designed to accept calibration by conducting measurements that are within engineering tolerances when used over time in certain environmental conditions. If the load cell has a flawed design then no amount of calibration can correct it.