Accurate calibration and adjustment method of pressure gauge
Release time:
2024-05-30 14:17
Source:
As a common measuring instrument, the pressure gauge has a wide range of applications in industrial production, laboratory research and other fields. In order to
ensure the accuracy of the measurement results, the calibration and adjustment of the pressure gauge is particularly important. This paper will introduce the accurate calibration and adjustment of pressure gauge
method for reference.
First, the calibration of the pressure gauge tool preparation
In the accurate calibration of the pressure gauge before, we need to prepare the following tools.
1. Calibration of the standard pressure gauge required: the standard pressure gauge is used to calibrate the measured pressure gauge reference instrument, its accuracy should be higher than that of the
The accuracy should be higher than that of the gauge under test.
2. Connection piping: used to connect the standard pressure gauge with the measured pressure gauge and transfer the measured pressure.
3. Pressure source: Used to provide test pressure.
4. Hand pump or pressure generator: Used to generate a certain pressure through the pressure source.
5. Related tools: such as spanners, screwdrivers, etc., used to disassemble and adjust the pressure gauge.
Second, the accurate calibration method of the pressure gauge
The basic steps for calibrating the pressure gauge are as follows.
1. Determine the calibration pressure range: according to the rated range of the pressure gauge under test, to determine the maximum and minimum pressure range for calibration;
2. Prepare the standard pressure gauge: select the appropriate standard pressure gauge, and ensure that its accuracy meets the requirements.
3. Connect the pipeline and adjust: use the connecting pipeline to connect the standard pressure gauge with the pressure gauge under test, pay attention to the tightness of the connection and ensure that the sealing performance is good.
Make sure the tightness of the connection and the sealing performance is good;
4. Apply test pressure: through the hand pump or pressure generator to apply a certain amount of pressure, to ensure that the pressure gauge under test and the standard pressure gauge are in astable working condition;
5. Read the pressure value: In the stable state, read the pressure value of the tested pressure gauge and the standard pressure gauge respectively, and record it.
6. Comparison and adjustment: the measured pressure gauge readings and standard pressure gauge readings for comparison, if there is an error, according to the actual situation
Adjust the working condition of the measured pressure gauge, so that its reading and the standard pressure gauge as close as possible.
7. Review and confirm: after the adjustment is completed, carry out calibration again and confirm whether the reading of the tested pressure gauge meets the requirements.
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Accurate calibration and adjustment method of pressure gauge
Related tools: such as spanners, screwdrivers, etc., used to disassemble and adjust the pressure gauge.
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