Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil well, electric power, ships, machine tools , Pipelines and many other industries, as well as medical pressure sensors. So how should we protect the pressure sensor during use to extend its service life? Today I will tell you several aspects that should be done in daily use.
First, prevent slag from depositing in the pipe and the transmitter from contact with corrosive or overheated media
Second, when measuring gas pressure, the pressure tap should be opened at the top of the process pipeline, and the transmitter should also be installed on the upper part of the process pipeline so that the accumulated liquid can be easily injected into the process pipeline
Third, when measuring liquid pressure, the pressure tap should be opened on the side of the process pipeline to avoid deposits and slag
Fourth, the pressure guiding tube should be installed in a place with small temperature fluctuations
Fifth, when measuring the liquid pressure, the installation position of the transmitter should avoid the impact of the liquid (water hammer phenomenon) to avoid damage to the sensor due to overpressure
Sixth, when freezing occurs in winter, the transmitter installed outdoors must take anti-freezing measures to prevent the liquid in the pressure inlet from expanding due to icing and causing sensor loss
Seventh, when wiring, pass the cable through the waterproof connector or flexible tube and tighten the sealing nut to prevent rainwater from leaking into the transmitter housing through the cable
Eighth, when measuring steam or other high-temperature media, a buffer tube (coil) and other condensers should be connected, and the working temperature of the transmitter should not exceed the limit