NH3 gas detection transmitter, alarming

Model Number: HFT-NH3#0009 Brand Name: Huafan QinLu Key Specifications/Special Features: Basic parameters:Size: 144 * 190 * 74mmWeight: about 1130gSensor types: electrochemistry method (gas catalytic combustion type, special separately)Destination gas: oxygen (O2), gas (EX), poisonous and harmful gases (CO, H2S, NH3, CL2)Response time: ≤30s (O2), ≤40s (CO), ≤20s (EX)Working pattern: continuous workWorking voltage: 24V DC
Output signal: 4-20mA
Output way: two wire or three wire, three wire system can output set of relay switch signal
Temperature range: - 20 to 50℃
Humidity: 15 to 90% RH (no condensation)
Explosion-proof number: CE101084
Explosion-proof marks: Exd II CT6
Connection mode: three-wire system according to the instruction manual one-to-one connection, two wire circuit done meter processing
Transmission cables: two core shielded cable, section 2 x 1.5mm²(three-wire system adopts three core shielded cable 3 x 1.5mm²)
Transmission distance: ≤1000m