Capacitive Transmitter Correct Maintenance(II)

4, careful cleaning:

When cleaning, the top should be wiped with a soft, non-abrasive cloth, and the holes in the sensor also need to be cleaned with a clean drill and guide bush.

5, keep dry:

Although the sensor's circuit design can withstand harsh extrusion processing environments, most sensors are not absolutely waterproof and do not work well in a wet environment. Therefore, it is necessary to ensure that there is no leakage, otherwise it will adversely affect the sensor. If the sensor has to be exposed to water or a humid environment, special sensors with extremely high water resistance must be selected.

6, to avoid low temperature interference:

When removing the sensor in a low temperature environment, ensure that the temperature is high enough so that the medium attached to the sensor is softened to ensure that the pressure transmitter will not be damaged.

7, to prevent pressure overload:

Even if the overload design of the transmitter's pressure measurement range is up to 50% (the ratio of the maximum range is exceeded), it is also advisable to avoid risk from the standpoint of equipment operation safety. It is better to select the sensor whose measured pressure is within the measuring range. Under normal circumstances, the optimal range of the selected sensor should be twice the measured pressure, so that the pressure transmitter can be protected from damage even if the extruder is operated under extremely high pressure. Transmitters require inspection once a week, once a month, mainly to remove the dust inside the instrument, carefully check the electrical components, the current value of the output should be constantly proofread, the transmitter is weak inside, must be strong with the outside world Separated by electricity.