Why calibrate weighing transducer?


      Why calibrate weighing transducer?

      A weighing transducer is a device used to measure weight or force in many different applications. The weighing transducer itself is a sensor that converts force into electrical signals. This signal is usually only a few millivolts and needs to be amplified before it can be used. Most weighing transducers use strain gauge technology. This technology is very mature and has been verified for more than 40 years.

      Weighing transducers are often used as part of weighing systems because they provide non-invasive, highly accurate load measurement data. A weighing transducer that is properly installed and calibrated can usually achieve an accuracy of about 0.03 to 1% (depending on the type of load cell) . These systems are critical to many industrial sectors including aerospace, offshore, marine, heavy lifting, and automobiles. Product liability and safety issues require force measurement results to be very accurate, which is usually achieved through calibration in accordance with national standards.

      Since all weighing transducers will deteriorate due to use, misoperation, drift, or aging, no matter whether the company has a quality management system, it should be calibrated regularly to determine the current performance of the load cell. The load cell may also become less reliable due to electrical influences, mechanical effects, instrument failures, and loose cables. Failure to inspect or clean the load cell is another important factor that can cause operational problems, as particulate matter can even accumulate in a clean environment around the load cell. Unless calibration is performed regularly, the accuracy of load measurement readings will become lower and lower, and users may not know that they are using defective data.

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