Cảm biến khí DA-91 Series, GASDNA Vietnam - GASDNA Vietnam

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.

FND display with Back Light

FND offers real-time display of gas density and back light offers easy reading in dark area.

Isolation Circuit

Built in isolation circuit prevents electrical noise and realizes the most stable sensor output.

Multi Signal Output

DC 4-20mA, 2 step-relay contact, & RS-485(option) – provides best networking with all kinds of devices & equipments.


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
Alarm	Low alarm – AL1 LED(RED)
	High alarm – AL2 LED(RED)
	Light bar – BZ LED(RED)
Alarm method	Sight – Light bar
Alarm method	Hearing – Buzzer (90㏈/1m)
Operation temperature & humidity	-20℃~50℃ & 5~95% RH (non-condensing)
Alarm release	Manual and automatic release
Alarm output	2 step (AL1/AL2) alarm relay contact, RS-485 (option)
Mounting type	Wall mounting type
Detection range	0 ~ 10,000 ppm

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GasDNA Vietnam	IR-20-4W
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GasDNA Vietnam	IR-80
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