Differential pressure transmitters have a wide range of applications in medical equipment, HVAC, industrial control and building automation. Due to the unfamiliarity of the on-site operator with the differential pressure transmitter, some failures occur during use, which affects the normal operation of production to a certain extent. Differential pressure transmitter fault diagnosis and handling is critical to production. So, how do you troubleshoot a differential pressure transmitter? Methods for fault diagnosis of differential pressure transmitter: First: the investigation method. Investigate ignition, smoke, odor, power supply changes, lightning strikes, humidity, misoperation, mismaintenance, etc. before the fault occurs. Second: the method of observation. Observe the external damage of the differential pressure transmitter circuit, the leakage of the pressure pipe, the overheating of the loop, and the power supply switching state. Third: detection method. Break detection: Separate the suspected faulty part from the rest to see if the fault disappears. If it disappears, the fault is determined, and vice versa. For example, if the intelligent differential pressure transmitter cannot communicate remotely Hart, the power supply can be disconnected from the instrument body, and the differential pressure transmitter can be powered on by the on-site additional power supply method to see whether there is interference with the communication. Short circuit detection: under the condition of ensuring safety, the relevant part of the circuit is directly shorted, such as: the output value of the differential transmitter is too small, the pressure guide tube can be disconnected, and the differential pressure signal is directly led to both sides of the differential pressure transmitter from outside the primary pressure take-off valve, and the output of the transmitter is observed to judge the blockage and leakage connectivity of the pressure conduction pipeline. Replacement detection: replace the suspected faulty part and determine the faulty part. For example, if it is suspected that the differential pressure transmitter circuit board is faulty, a piece can be temporarily replaced to determine the cause. Partial detection: the measurement circuit is divided into several parts, such as: power supply, signal output, signal transmission, signal detection, checked according to parts, from simple to complex, from the table to the inside, narrow the scope, find out the fault location. Differential pressure transmitter is one of the transmitters, such as pressure transmitter and other transmitter field fault inspection and troubleshooting is similar to differential pressure transmitter. Some methods are also applicable to other transmitters. On-site operators can operate and diagnose according to specific conditions. Product consultation, product customization, agent, technical inquiry, quotation, etc. If you have any questions, please contact Xingyi: 400-600-4496!