09,22,2026 29 views
Regular inspection:
Diaphragm status: Check for bulging and corrosion (visual or shutdown inspection every month).
Blockage of pressure pipe: After closing the valve, remove it for inspection and use steel wire to clear or chemically clean it.
Common fault handling
| Fault phenomenon | Possible reasons | Solution |
|---|---|---|
| The output signal is zero | Power failure/wiring error | Check the polarity of the 24V power supply and test the circuit current |
| The signal fluctuates greatly | Fluid accumulation/gas leakage in the pressure tube | Drain or leak, tighten joints |
| reading drift | Membrane deformation or temperature influence | Re calibrate and check the temperature compensation parameters |
Antifreeze and anti-corrosion
Winter protection: keep warm with tropical insulation or inject antifreeze (glycerin+water mixture).
Marine environment: choose 316L stainless steel shell+IP68 protection level.
Safety precautions
Explosion proof area: Select Ex d Ⅱ CT6 explosion-proof certification, and the junction box needs to be sealed.
Overpressure protection: Install pressure relief valves or overpressure protectors (such as measuring compressor outlet pressure).
Static protection: Ground resistance<4 Ω to avoid signal interference.
