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Precautions when using differential pressure transmitter

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2020-05-21 Back List
  1. Never apply voltage higher than 36V to the transmitter, which may cause damage to the transmitter;

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2. Do not touch the diaphragm with hard objects, which may cause damage to the isolation diaphragm;

3. The measured medium is not allowed to freeze, otherwise it will damage the isolation diaphragm of the sensor element and cause damage to the transmitter. If necessary, the transmitter needs to be temperature protected to prevent freezing;

4. When measuring steam or other high-temperature media, its temperature should not exceed the limit temperature of the transmitter. If the temperature is higher than the limit temperature of the transmitter, a heat sink must be used;

5. When measuring steam or other high-temperature media, a heat pipe should be used to connect the transmitter and the pipe together, and use the pressure on the pipe to transmit it to the transformer. When the measured medium is water vapor, an appropriate amount of water should be injected into the heat pipe to prevent overheated steam from directly contacting the transmitter and damaging the sensor;

6. During the pressure transmission process, the following points should be noted:

A. There should be no air leakage at the connection between the transmitter and the heat pipe;

B. Before starting to use, if the valve is closed, the valve should be opened very carefully and slowly during use to prevent the measured medium from directly impacting the sensor diaphragm, thus damaging the sensor diaphragm;

C. The pipeline must be kept clear. Sediments in the pipeline will pop out and damage the sensor diaphragm.


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