Pressure sensor fault analysis of Ruize Instruments - Database & Sql Blog Articles

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

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Fault Analysis of Pressure Transmitter of Ruize Instrument

Pressure Transmitters

In the measurement process, some faults often occur, and the timely judgment analysis and processing of the fault is crucial to the ongoing production. Based on the experience in daily instrument debugging, we summarize some judgment analysis methods.

1. Pressure transmitter observation method: observe the external damage of the circuit, the line dropout, the leakage of the pressure guiding tube, the overheating of the circuit and the state of the power supply switch.

2, pressure transmitter detection method:

(1) Open circuit detection: separate the suspected fault part from other parts to see if the fault disappears. If it disappears, determine the fault, otherwise you can go to the next step, such as: intelligent differential pressure

Transmitter

If you can't normal Hart remote communication, you can disconnect the power supply from the watch body, and use the power supply on the site to power on the transmitter to check whether the communication is disturbed because the cable is superimposed with electromagnetic signals.

(2)

Pressure Transmitters

Short-circuit detection: In the case of ensuring safety, the relevant part of the circuit is directly shorted. For example, the output value of the differential pressure transmitter is too small, the pressure guiding tube can be disconnected, and the differential pressure signal is directly directly from the first pressure regulating valve. Lead to the differential pressure transmitter on both sides, observe the transmitter output to determine the plugging and leakage connectivity of the pilot line.

(3) Replacement detection: Replace the part suspected of being faulty and judge the fault location. Such as: doubt

Transmitter

If the board fails, you can temporarily replace it to determine the cause.

(4)

Pressure Transmitters

Segment detection: The measurement loop is divided into several parts, such as: power supply, signal output, signal transmission, signal detection, sub-section inspection, from simple to complex, from the table and inside, narrow the scope to find the fault location.

Hot products: intelligent pressure change

give away

/ temperature transmitter / differential pressure

Transmitter