Abnormal Pressure Transmitter CS-PT700 Troubleshooting Method
Absolute pressure transmitter CS-PT700 is estimated that many people have used, his application area is also relatively broad, absolute pressure transmitter - CS-PT700's working principle is the sensor collects the weak non-electrical pressure - pressure variable Replaced by a standardized signal output that can be transmitted and amplified at the same time to supply secondary instruments such as indicator alarms, recorders, and regulators for measurement, indication, and process adjustment. The converted electrical signal and the pressure variable have a certain continuous function (usually a linear function). The pressure transmitter is mainly composed of three parts: a sensitive element, a sensing element, and a measurement conversion circuit.
Pressure variables include positive and negative gauge pressures, differential pressures, and absolute pressures. Absolute pressure transmitter CS-PT700 according to the pressure range can be divided into general absolute pressure transmitter 0.001-20MPa and differential pressure transmitter 0-1.5kpa two.
Absolute Pressure Transmitter Field Determination Process Troubleshooting Method
1. The transmitter output signal is unstable or the output is zero
When this happens, consider: whether the pressure source itself is stable; the extent to which the instrument or absolute pressure transmitter is resistant to interference; the absolute pressure transmitter wiring is normal; the absolute pressure transmitter itself is vibrating and the cause of the malfunction; Is it reversed?
2.mA reading high or low
Check the degree of pressure variable; perform 4-20mA output adjustment.
3. The transmitter does not return to zero after the input pressure is not responding or pressure is released
Check the absolute pressure transmitter's power supply voltage, the verification device and the setpoint (4mA and 20mA points); check the absolute pressure transmitter interface for leaks or blockage; check wiring and power supply, if normal at check absolute pressure Whether there is output of the transmitter zero position, or simply pressurize to see whether the output changes, there is change to prove that the absolute pressure transmitter is not damaged.
4. The pressure variable is low or high
Check if there is a blockage in the pressure transmission; check the verification equipment and perform absolute pressure transmitter adjustment; check the vehicle damping and electromotive force interference.
Absolute pressure transmitters include ranges:
Gas Flow Sensors 丨 Micro Pressure Sensors 丨 Carbon Monoxide Sensors 丨 Trace Oxygen Sensors 丨 h2 Sensors 丨 Position Sensors 丨 Absolute Pressure Transmitters 丨 Piezoresistive Pressure Transmitters 丨 Methane Sensors 丨 Hydrogen Sulfide Sensors 丨 co2 Gas Sensors Photo Ion Sensors 丨Ph3 sensor 丨 percent oxygen sensor 丨 bm sensor 丨 micro flow sensor 丨 fiber strain sensor 丨 load cell 丨 three in one sensor 丨 sst sensor 丨 gss sensor 丨 ch4 sensor 丨 freon sensor 丨 sulfid sensor 丨 o3 sensor 丨 double gas sensor Nitric oxide sensor 丨 Transparency sensor 丨 Hydrogen cyanide sensor 丨 Sulfur dioxide sensor 丨 Gas detection sensor 丨 Gas detection sensor 丨 voc sensor 丨 Current oxygen sensor.
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