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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

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. $$$

Merrillville, IN  |  800-373-1759

ISO/IEC 17025:2017 & ANSI/NCSL Z540.3 Accredited Laboratory. Electronic, dimensional, physical and thermodynamic calibrations performed onsite and in our lab. Professional ASQ Certified Calibration Technicians. We support the manufacturing and service sectors including; aerospace, automotive, chemical, electronic equipment, energy, food, industrial, machinery, medical, metal, military, nuclear, pharmaceutical, plastics, and transportation. Free local pickup and delivery. In business since 1977.

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Calibration Laboratory, LLC $$$

Chelmsford, MA  |  800-325-2201

Essco Calibration Laboratory provides calibration services for commercial test equipment. Our capabilities include electronic, fiber optic, mechanical, temperature, pressure, mass and torque instrumentation. ISO 17025:1999 accredited by A2LA.

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Essco Calibration Laboratory $$$

Monterey, CA  |  831-373-0200

Sierra provides accurate calibration services for mass flow meters and controllers, insertion thermal flow meters, vortex, and ultrasonic flow meters. With more than 40 years of expertise in gas, air, or liquid flow calibration, you can count on our team to make sure your flow meter operates with efficiency and pinpoint accuracy. We believe in providing personalized and customized service, and doing everything we can to maintain credibility with our clients. To get started, contact Sierra today!

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Sierra Instruments $$$

Scottsdale, AZ  |  602-437-0114

National Calibration Inc. (NCI) is a regional calibration and repair service company covering the southwestern United States and expanding into adjacent western states. NCI is based in Phoenix, Arizona and has additional service locations in Durango, Colorado; Albuquerque, New Mexico; Las Vegas, Nevada; Salt Lake City, Utah and San Antonio, Texas.

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National Calibration Inc. $$$

Roseville, MI  |  313-530-5083

Measurement & Machine Technology provides laser alignment, calibration measurement and laser calibration services on a wide variety of machine tools. We offer many years of experience and can service almost any make or model of machine. See our website for more.

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Measurement & Machine Technology $$$
placeholder image Custom Calibration Inc. Calibration Laboratory, LLC Essco Calibration Laboratory Sierra Instruments National Calibration Inc. Measurement & Machine Technology

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.

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