Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent building, production automation, aerospace, military, petrochemical, oil well, electric power, ship, machine tool. , pipes and many other industries, and other medical pressure sensors. So how do we protect the pressure sensor to extend its service life during use? Today, I will tell you about several aspects that should be done in daily use.
First, prevent the deposition of dross in the conduit and contact the transmitter with corrosive or superheated media.
Second, when measuring the gas pressure, the pressure tap 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 is easily injected into the process pipe.
Third, when measuring the liquid pressure, the pressure tap should be opened on the side of the process pipe to avoid depositing 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 liquid (water hammer phenomenon), so as to avoid damage of the sensor over pressure.
Sixth, when freezing occurs in winter, the transmitter installed outside must adopt anti-freezing measures to prevent the liquid in the pressure-inducing port from expanding due to the volume of ice, resulting in sensor loss.
Seventh, when wiring, pass the cable through the waterproof joint or the winding tube and tighten the sealing nut to prevent rainwater from leaking into the transmitter housing through the cable.
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.
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