Solutions to the inaccurate numerical display of combustible gas detectors
Combustible gas alarms are composed of detectors and alarms. They are widely used in petroleum, gas, chemical, oil depots and other petrochemical industries where combustible gases exist. They are used to detect leaks in indoor and outdoor dangerous places and are important to ensure production and personal safety. instrument. So does anyone know how to solve the problem of inaccurate numerical display when using a flammable gas alarm?
1. The gas detector cannot be calibrated
The reasons may be: the sensor is broken; there is a problem with the circuit board; the calibration gas is incorrect; there is no power or poor contact. Therefore, you can make countermeasures according to the cause: replace the sensor, replace the circuit board, use the correct calibration gas, connect the power supply or connect the wire.
2. The 4-20Ma signal is incorrect
The reasons may be: there is a problem with the circuit board; there is a problem with the instrument; the wiring is loose or broken; the wiring is incorrect. Therefore, you can make countermeasures based on the cause: replace the circuit board, read the instrument manual, connect the wiring, and correct the wiring;
3. No relay switching contact output
The reasons may be: There is a problem with the circuit board; The relay is broken; The wiring is loose or broken; The wiring is incorrect. Therefore, countermeasures can also be found based on the cause: replace the circuit board, replace the relay circuit board, connect the wiring, and correct the wiring.
The above solution to the inaccurate value display of combustible gas alarms is shared here. When the combustible gas alarm in an industrial environment detects that the concentration of combustible gas reaches the critical point of the lower or upper limit of explosion, the combustible gas alarm will sound Alarm signals are used to remind workers to take safety measures and drive the exhaust, cut-off, and sprinkler systems to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production.
