DA-91 series detects leakage of various toxic or combustible gases leaked from industrial areas for gas producers, gas users, gas reservoirs, gas by-producers, and so on, in order to prevent any accidents in advance.
[ Features ]
ㆍ FND display with Back Light
FND offers real-time display of gas density and back light offers easy reading in dark area.
ㆍ Isolation Circuit
Built in isolation circuit prevents electrical noise and realizes the most stable sensor output.
ㆍ Multi Signal Output
DC 4-20mA, 2 step-relay contact, & RS-485(option) – provides best networking with all kinds of devices & equipments.
[ Specification ]
Detection principle
Electro-chemical, NDIR, Catalytic
Response time
within 20 seconds, 90%/full scale
Accuracy
≤2% /full scale
Programmable
Calibration density & detection range
Self diagnose
FND shows senor error(S-ERR), 2mA output
Input power
AC 220V/60Hz
Output power
4~20mA / full scale – max. 2.5km transmitting length