Do you know what requires attention when using a pressure transmitter?

- Jun 19, 2019-

1. First check whether there is signal interference around the pressure transmitter. If there is, try to eliminate it, or connect the sensor shielding wire to the metal casing as much as possible to enhance the anti-interference ability.

2. Periodically clean the mounting holes to ensure that the mounting holes are clean. Prevent the transmitter from contacting with corrosive or overheated media.

3. When wiring, make the cable pass through the waterproof connector (accessory) or the winding tube and tighten the sealing nut to prevent rainwater from leaking into the pressure transmitter housing through the cable.

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

5. When measuring the liquid pressure, the pressure port should be opened at the side of the process pipe to avoid sedimentation.

6. The voltage above 36V cannot be used for the pressure transmitter, which is easy to cause damage.

7. When freezing occurs in winter, the transmitter installed outside must adopt anti-freezing measures to prevent the liquid in the pressure inlet from expanding due to the freezing, leading to damage to the sensor.

8. When measuring steam or other high-temperature medium, it is necessary to add a condenser such as a buffer tube (coil), and the operating temperature of the transmitter should not exceed the limit. Moreover, the buffer tube needs to be filled with an appropriate amount of water to prevent the superheated steam from contacting with the transmitter. Moreover, the buffer heat pipe cannot leak air.

9. When measuring the liquid pressure, the installation position of the transmitter should avoid the impact of liquid (water hammer phenomenon), so as to avoid damage of the sensor due to over pressure.

10. The pressure guiding pipe should be installed in a place with small temperature fluctuations.

11. Prevent dross from depositing in the conduit.

12. The medium measured by the pressure transmitter cannot be frozen. Once it freezes, it will easily damage the diaphragm because the diaphragm is generally thin.