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One of the many varieties of equipment that Ravebo can calibrate for you are load cells. Let us explain something about load cells and why we can be of service for to you.

A Load Cell is a device that is used to measure weight or force in a number of different applications. The load cell itself is a transducer that is used to convert a force into an electrical signal.
There are three types¬ of load cells; hydraulic, pneumatic and strain gauge, with strain gauge being the most common one.

A frequent application of load cells is as a part of a weighing system. Load cells offer non-intrusive, highly accurate measurement data; when properly calibrated and installed they routinely achieve accuracies of 0.03 to 1.00%. These accuracies are of extreme importance to many industries that they are used in, including marine, offshore, aerospace, automotive and heavy lifting.

Calibration
When performing a calibration of the load cell, we will test the linearity and repeatability of the unit, which are both used to determine the accuracy. Most commonly used is the “5 Step” method, where a known load is incrementally applied to the load cell. Let’s say we have a 100T capacity load cell; we will measure readings on 20, 40, 60, 80 and 100 Tonnes. Also the 0 measuring is being checked. This process is repeated twice, and the difference in the results used to determine its repeatability/accuracy. As most load cells are used with some form of read-out/display to form a weighing system, the load cell and instrumentation should always be calibrated together whenever possible.

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