2 SST-9801A
Detected gases： comb gases，C2H2, H2S, CO, CO2, NH3, CL2, H2, etc
Concentratio units： %LEL, ppm，%V/V
Input signal: standard 4~20mA
Range: %TEL, ppm , %V/V
Display: digital or simulate display
Alarm point: low level at 25%LEL(adjustable between 1% and 25%),high lever at 50%TEL
Alarm mode: audible and visual alarm
Alarm output: 2 levels output(contact capacity:2A/250VAC)
Signal output: standard 4~20mA current output/RS-485 communication protocol
Operating temperature: -10℃~+55℃
Power supply: AC220V/50Hz
Max. consumption: not more than 5.5w/channel
Max. transmit distance: 1200m
This equipment can be panel mounted, wall mounted or cabinet mounted or cabinet mouted and can be used with
ST-10S　　　ST-20S　　　SST-981T