Precautions for using pressure transmitters

The points during the use of the pressure transmitter and the correct installation position of the transmitter on the process pipe are related to the measured medium. To obtain good measurement results, the following situations should be considered:

1. Prevent the transmitter from contacting with corrosive or overheated media;

2. Prevent dross deposition in the duct;

3. When measuring the liquid pressure, the pressure tap should be opened on the side of the process piping to avoid sedimentation.

4. When measuring gas pressure, the pressure tap should be at the top of the process pipe, and the transmitter should also be installed at the top of the process pipe so that the accumulated liquid can be easily injected into the process pipe.

5. The pressure guiding pipe should be installed in places where temperature fluctuations are small;

6. When measuring steam or other high-temperature medium, a condenser such as a buffer tube (coil) must be connected, and the operating temperature of the transmitter should not exceed the limit.

7. When freezing occurs in winter, the transmitter installed outdoors must adopt anti-freezing measures to avoid the expansion of the volume of the liquid in the pressure-introducing port due to the ice formation, leading to damage to the sensor.

8. When measuring the liquid pressure, the transmitter should be installed in a position where the impact of the liquid (water hammer phenomenon) should be avoided to avoid overvoltage damage to the sensor.

9. When wiring, pass the cable through the waterproof connector (accessory) or the winding tube and tighten the sealing nut to prevent rain, etc., from leaking through the cable into the transmitter housing.