BH-50 fixed gas detector Controller
Explosion proof grade：Exd ⅡC T6 Gb
Response time：≦20S
Working voltage: DC220V±10% Hz
Output voltage：DC24V
System power consumption：≦5W
Signal input: three wire system 4-20mA or four wire system RS485
Signal output: two wire RS485 (MBus protocol)
Maximum power consumption of external equipment: ≤ 1kW (single / double / four channels), ≤ 2kW (8 / 16 / 32 channels)
Wiring requirements: three core wire, each core diameter ≥ 15mm, wire length ≤ 500m (three wire system 420mA), four core shielded wire, each core diameter ≥ 15mm, wire length ≤ 1000m (four wire system RS485)
Working temperature：10℃～50℃
Working humidity：10-95%RH
Installation method：Wall mounted
Shell material：Aluminum
Dimensions：380x230x100mm（L×W×H）