High Accuracy Test Gauges

High accuracy test gauges are used as a test standard to calibrate other instruments. With an accuracy of ± 0.25% they are four times better than a standard class 1 gauge. A test gauge has many more divisions than a standard gauge and a fine knife edge pointer allowing you to get a more accurate reading. The diameter is often 160mm or 250mm which allows for easy reading on a large analogue display.

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High Accuracy Test Gauge FAQ

What is a high accuracy test gauge?

As the name suggests high accuracy test gauges are used when a high degree of measurement accuracy is required. They are used to calibrate and test the accuracy of other devices especially mission-critical devices where the final product quality or safety is dependent on accurate measurement. In these instances, the accuracy of measurement instrumentation needs to be checked on a regular basis.

How do high accuracy test gauges work?

The accuracy of a pressure gauge is determined by how close it is to its true value in percentage terms. For example, an industrial gauge with a range from -1 bar to 1000 bar to an accuracy of ±1.0% will be accurate to within plus or minus 10.01 bar. Pressures are measured to a high precision and compared to the readings of a device under test to determine whether reading errors are within the stated performance parameters.

Why are high accuracy test gauges important?

Manufacturers rely on all kinds of gauges for safety and quality assurance. They play an important role in controlling pressure, gauging filling levels and ensuring that filters and pumps are operating efficiently which means that they need to be precise and reliable. Over time there is a tendency for the accuracy of measurements to slip due to wear and tear. For this reason, regular calibration of measuring equipment using high accuracy test gauges is essential.

Calibration can take place on-site or equipment can be sent away to be calibrated within a dedicated testing facility. Using a certified calibration service will ensure that equipment is tested to defined standards such as UKAS accreditation which adheres to BS EN ISO/IEC 17025:2005. Using a calibration service saves the cost of investing in testing equipment and trained technicians, they also offer traceability.