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Why calibrate your process devices?

January 27, 2016

Instrument calibration must be carried out to maintain and verify instrument accuracy. Test and calibration instruments are available that cover all different instruments which measure typically Flow, Pressure, Temperature etc. They are also used for setting up final elements such as control valves. Test and calibration instruments are available in portable versions for site calibration or bench versions for the workshop. Calibration is the process of configuring an instrument to provide a result for a sample within an acceptable range. Eliminating or minimizing factors that cause inaccurate measurements is a fundamental aspect of instrumentation design.

Calibration is “a test during which known values of measurement are applied to the transducer and corresponding output readings are recorded under specified conditions.” This includes the capability to adjust the instrument to zero and to set the desired span. Usually calibration involves injecting an accurate signal from the calibrator into the instrument at 0%, 25%, 50%, 75% and 100% of range and adjusting the instrument zero and span to a point where the instrument is aligned with the calibrator for the specified range.

Why calibrate? Calibration isn’t just fine-tuning your test instruments, it ensures you can safely and reliably use instruments to get the accurate test results you need. It’s a form of quality assurance. You know the value of testing electrical equipment, or you wouldn’t have test instrumentation to begin with. Just as electrical equipment needs testing, so do your test instruments.

Extech offers a complete line of calibrators for every application possible, and Diverse Electronics carries the complete Extech product line-up. If you’re uncertain which is the best calibrator for your process device, speak to one of our representatives. We’ll set you up with the right meter for your application. Shop online and get our fast and friendly service.

 


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