some pressure transmitter fault types and solutions

1. The pressure display value is abnormal.

Abnormal pressure value display is a common fault of pressure transmitters UPB1. In addition to common zero point drift and range migration problems, the causes include component damage, sensor failure, wiring failure, electromagnetic interference, and pressure induction tube/ capillary problems, etc. These problems need to be investigated one by one.

2. The components are damaged.

It is necessary to consider whether there is a short circuit or open circuit caused by excessive lightning strike voltage, incorrect wiring or damaged cables. If it is verified that any electronic components have been burned or physically damaged, the damaged components or cables must be replaced

in time, and the instrument grounding system must be checked and maintained in a timely manner. Pay attention to whether water has entered the instrument, causing corrosion of internal electronic components. If the cable interface is not tightly sealed and the transmitter sealing ring is aging, it is easy to cause water to accumulate inside and outside the transmitter, leading to damage to the internal components. At this time, damaged

components should be replaced, and the pressure transmitter UPB9 should be sealed and inspected.

For any questions, please contact Qi Huang