| NO. | Fault | Reason | Treatment |
| 1 | Output indicator transmitter reading zero |
Whether the power supply electrode is reversed or not | Correct wiring |
| Whether the power supply voltage is 10~45VDC | Recovery power supply 24VDC | ||
| Is the diode in the terminal block damaged | Replacement of diodes | ||
| Electronic circuit board damage | Replacement of electronic circuit boards | ||
| 2 | Transmitter not communicating |
Supply voltage on the transmitter (10.5V minimum) | Recovery power supply 24VDC |
| 3 | Unstable reading of the transmitter |
Load resistance (250Ω minimum) | Add resistors or replace resistors |
| Is the unit addressed correctly | Readdress | ||
| Measuring whether the pressure is stable | Take steps to stabilize or wait | ||
| Check Damping | Increased damping | ||
| Check for interference | Elimination of interference sources | ||
| 4 | Inaccurate transmitter readings |
Is the gauge pressure relief tube clear | Unclogging of pressure-relief tubes |
| Is the transmitter set correctly | Retrieve | ||
| Integrity of system equipment | Safeguarding system integrity | ||
| The gauge is not calibrated. | Recalibration | ||
| 5 | Pressure change, no output response |
Is the gauge pressure relief tube clear | Unclogging of pressure-relief tubes |
| Is the transmitter set correctly | Check and reset | ||
| Integrity of system equipment | Safeguarding system integrity | ||
| Checking transmitter safety jumpers | Retrieve | ||
| Damaged sensor module | Replacement of Sensor Module |