Brief Analysis of The Measurement Accuracy And Testing Methods of Thermal Meters

The metering accuracy of heat meters can be divided into three levels of measurement, that is, the first grade, second grade and third grade.

It needs to know that the metering accuracy of a heat meter cannot be described by a fixed value such as 3% or 6% like other equipment.

This is because even the same accuracy of the heat meter will also change due to the different working environment and the length of time of use.

The accuracy of a heat meter should be tested according to actual working conditions in theory.

However, under normal operating conditions, heat meters are influenced by both the flow rate and the temperature difference.

Therefore, it is difficult to simulate the exact condition of the test, the whole and partial test method is used in most cases.

The overall measurement method is to detect an overall flow rate and then compare and calibrate it with the standard detection device.

Separate measurement means that each component of the heat meter is tested separately, including the flow meter, sensor, and totalizer, and the error of each is detected to get the overall error range.

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