Y-150B-F YN-150B Y-150B-FZ Y-153B-F Y-153B-FZ stainless steel pointer pressure gauges, after replacing the module, the fault is still out of range, then it is finally judged that the pressure sensitive diaphragm of the pressure transmitter is deformed or damaged.
1.According to the pressure transmitter failure processing steps, narrow down and eliminate the fault,
2. Analyze the cause of the fault according to the control room trend chart, and the process is misjudged (general trend indicates that the pressure indication range changes slowly, or changes according to working conditions,) instrument problems, (general trend chart changes slowly, changes Very sharp)
3.According to the instructions of the field transmitter, if the fault was overranged last time, first power off it, and then observe the power transmission. If the fault display is still overrange, then measure whether the current value corresponds to its indicated pressure value. ,
4.Rotate the measuring tube bolt slowly to prevent the measurement medium from being sputtered. After dismantling it, adjust the mechanical zero point, and finally confirm that the failure is the failure of the instrument itself. Deformation of the pressure-sensitive diaphragm of the feeder)
5. Confirm that there is no pressure in the measurement pipeline, open the zero adjustment screw, and adjust the mechanical zero point once or twice, and the fault still shows as over-range, then it is necessary to consider whether there is a pressure field.
6.Refer to the indicated pressure of the transmitter and the on-site indication pressure gauge to display the pressure value, and confirm that the measuring pipeline has sufficient residual pressure.