Main technical indicators of GJ4/100 (A) high and low concentration methane sensor
Explosion proof form: intrinsic safety and explosion-proof type, explosion-proof mark "Exdib I Mb";
Measurement range: (0-100)% CH4;
Measurement error:
Remote control distance: not less than 5m;
Alarm point: Alarm point setting range: The sensor should be able to be set arbitrarily within the range of (0.5-40)% CH4 (factory set to 1% CH4)
Power off point: (0.5-40)% CH4 can be set arbitrarily (factory setting is 1.5% CH4). When the power is turned off and the output is in a high-level state, the current pulled out is 2mA and the voltage is not less than 3V. When the output is in a low-level state, the voltage is less than 0.5V.
Output RS485 signal
a) Transmission method: RS485
b) Transmission port: 1 channel
c) Transmission rate: 2400bps
d) Peak to peak communication voltage: (2-10) V
Working current: not exceeding 100 mA (note: must be under rated voltage DC 18 V conditions)
Calibration flow rate: 200ml/min

GJ4/100 (A) High and Low Concentration Methane Sensor