No output signal
Possible reasons: power supply issues, wiring errors, sensor damage.
Solution: Check if the power supply voltage meets the requirements, confirm if the wiring is correct, and replace the sensor if necessary.
Abnormal output signal (such as output ≥ 20mA or ≤ 4mA)
Possible reasons: insufficient power supply voltage, actual pressure exceeding range, sensor damage, loose or incorrect wiring.
Solution: Ensure that the power supply voltage is sufficient, check and adjust the pressure range, repair or replace the sensor, and tighten the wiring.
The displayed pressure value is unstable
Possible reasons: external electromagnetic interference, poor cable shielding, presence of impurities or bubbles in pipelines, blockage of pressure taps, etc.
Solution: Improve the shielding effect, clean up impurities in the pipeline, and ensure that the pressure tap is unobstructed.
Inaccurate pressure indication
Possible reasons: zero drift, improper range setting, insufficient accuracy of reference pressure gauge, mismatched range between instrument and sensor, etc.
Solution: Re calibrate the zero point, check and adjust the range setting, and use a high-precision pressure gauge for comparative calibration.
Large reading deviation
Possible reasons: environmental temperature changes, errors caused by installation location, and malfunctions of the transmitter itself.
Solution: Consider temperature compensation measures, adjust the installation position as needed, or perform maintenance on the transmitter.
The transmitter reading changes over time
Possible reasons: component performance degradation caused by aging, long-term operation, seal failure, etc.
Solution: Regularly calibrate and replace aging components or the entire equipment if necessary.
Zero offset of micro differential pressure transmitter
Possible reasons: installation location influence, self weight of sensing elements under gravity.
Treatment method: Install according to the manufacturer's recommendations. If necessary, adjust the zero position to the standard value after installation.
For the above mentionedAnhui Chunhui Pressure TransmitterThe specific solution steps for each fault situation should refer to the product manual and be determined based on the actual situation on site. If the problem cannot be solved by oneself, it is usually necessary to contact professional technical support or repair services.