Description

The single channel oxygen alarm controller is thesingle-point supervisory control gas alarming system.It is consisted of the gas-detecting main machine and the gas detector and it is used to detect the density of the flammable gas, oxygen, or poisonous gas in the working environment.
This system adopts *2 digit embedded micro processor as control unit, high-performing catalytic air-sensitive element or high-precision imported electrochemical sensor as detector which has high sensitivity and quick response. When the detected gas density in the air reaches or exceeds the preset value, the controller will give out audio-visual alarm immediately to remind you take safety precautions and start exhaust, control and start exhaust or other peripheral devices to avoid explosion, fire, toxicosis to protect the safety of life and treasures.
This system applies to metallurgy, petrol, petrifaction, chemistry, light industry, coking, municipal administration, gas, pharmaceutical, sewage dealing and many other special industry and field that need proofing for fire, explosion, and toxic gas leakage.
Characteristics:
high-performance sensor
the device adopt advanced *2 digit embedded micro controller
display the detected gas density in long distance
high sensitivity, and quick response
customers can set the high and low alarm point by themselves
automatic failure detection for the detector
important operation needs password to avoid operating errors
one ***0mA signal detector input
one ***0mA signal output
one RS**5 signal output
3A  two alarm points output in linkage, passive switch value 3A
Technical Parameters
Detect scope：***5%vol
Error displayed≤±3% F.S
Responded time: T*0<*0s
Display mode: LED digital display
Alarm: sound and light alarm
Connecting cable: two-wires type detector 2x1.5mm2 length＜***0m
Three-wires type detector 3x1.5mm2 length＜***0m
Operation condition:**0℃～**0℃; Humidity＜*0%RH
Defending class: IP*4
Weight: *8x*5x8cm about 2.5kg