Pressure type thermometer correction measures

Measurement department after the verification, if pressure type thermometer, indicating error should adopt effective corrective actions. The paper are as follows: 1. If in each temperature point error is basically the same remove seal, protect shell removed, use the pointer out stitching machine. In two-thirds of the thermometer full range or 3/4 place take the commonly used one temperature point, to control the constant temperature trough the temperature, the temperature constant temperature trough in the bag, correct the position of the pointer, make that point error is zero. To check it again. 2. If the temperature will gradually increase or decrease thermostat control point error in the range of middle temperature thermometer, correcting the position of the pointer, make that point error is zero. Or for connecting rod small adjustment. To check again. 3. If you have more complex changes, irregular, as the case may be. Can be used after the user agrees to relegation, cannot do the unqualified processing relegation.