AZ7702 High Accuracy CO Meter w/IR Output เครื่องวัดก๊าซคาร์บอนมอนอกไซด์

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AZ INSTRUMENT

AZ7702 High Accuracy CO Meter w/IR Output เครื่องวัดก๊าซคาร์บอนมอนอกไซด์

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az7702 co เครื่องวัดก๊าซคาร์บอนไดออกไซด์แบบสัมผัส

AZ7702 High Accuracy CO Meter w/IR Output เครื่องวัดก๊าซคาร์บอนมอนอกไซด์

AZ 7702 High Accuracy CO Meter w/IR Output features:
* Designed to meet CNPG and EN50543 standards
* Precision carbon monoxide sensor up to 3ppm accuracy
* Long life and reliable electrochemical CO sensor
* Carbon monoxide audible alert is adjustable up to 200 ppm, preset at 15ppm
* Manual zeroing feature to cancel background influence
* Calibratable at 0,100 and 400ppm CO standard gas
* IR output to external printer for real time receipt printing

CO levels and its effect

ppm	Symptoms and applicable standard
0-1	Normal background levels
9	Maximum indoor air quality level: Maximum allowable concentration per ASHRAE Residential standards 62-1989 for living area.
25	Maximum limit 8 hrs of continuous exposure per California OSHA workplace standards.
35	Maximum 8 hrs average exposure level per US OSHA workplace standards
50	Maximum concentration for continuous exposure in any 8 hrs average level per OSHA standards.
100	Remove employees from enclosed space if the CO concentration exceeds 100ppm per OSHA exposure limit.
200	Mild headache, fatigue, nausea and dizziness within 2-3 hrs.
400	Frontal headache, life threatening after 3 hrs. Maximum concentration in flue gas per the US EPA and AGA standards.
800	Dizziness, nausea, convulsions, death within 2-3 hrs.
1600	Nausea w/i 20 min.,death w/i 2-3 hrs

Specification

Model	7702
CO Range	0~1000 ppm
CO Resolution	1 ppm
CO Accuracy (at 20±5℃, 50±20%RH)	±3ppm at 0~20 ppm; ±5ppm at 21~100 ppm, ±10% at 101~500 ppm; ±20%ppm at 501~1000 ppm,
T90 Response Time	within 60 seconds
TA Range	-20.0~60.0℃ (-5.0~140.0℉)
TA Resolution	0.1 ℃ (℉)
TA Accuracy	±0.6℃ at 5~40℃; ±1.0℃ at others, ±1.0℉ at 41~104℉; ±1.8℉ at others
T90 Response Time	within 120 seconds
CO Warm Up Time	30 seconds
Real Time Display	YES. 24H/AM/PM hh:mm:ss, MM-DD-YY
LCD Size	26(H) * 44(W) mm
Meter Size	205(L) * 70(W) * 56(H)mm
Operating Temperature	0~50℃
Operating RH%	10~95% RH (avoid condensation)
Storage *Temperature*	-20~60℃
Storage RH%	0~95% RH (avoid condensation)
Power Supply	4 PCS AAA Batteries
Battery Life	700 hours (<1.4mA while backlight is off)
Weight	~163g
Standard Package	Meter, Manual, Batteries, Hard carry case,
Optional accessory	Portable IR printer- model 88998