Gas Tester Ammonia/Hydrogen/Hydrogen Phosphide Meter Datalogger Function

Applications: GD-40 uses dot matrix display technology, can work with single gas or multi-gas sensor.  GD-40 multi- gas detector with high sensitivity, fast response , with LCD display and light, sound and vibration alarm, can be used in complex environment for gases concentration monitoring. It is suitable to be used in chemical, pharmaceutical, municipal, water, telecommunications, archeology, laboratories, cold storage, wine and so on.    Features: Compact, portable , light, sound and vibration alarm indication
Large screen display real-time gases concentration
Battery capacity, sensors fault, sound,light and vibration alarm self-checking function
Datalogging 3000 measuring results
Sensor: oxygen or toxic gas: electrochemical; combustible gas: catalytic
Battery : 3.7V2000MAh lithium-ion rechargeable battery
Working hours : 15 hours under flammable gases and 200 hours under toxic gases.
Display: large-screen liquid crystal display
Alarm: sound, light, vibration alarm
Direct reading : instantaneous value
Ex mark : Ex ib IIB T3 Gb
IP Rating: IP65
Working temperature : -20°C ~ 60°C
Operating humidity :5-90% RH
Size : 126mm * 66mm * 33mm
Weight : 220g ( with charger )   Selectable Gases( can be 1, 2, 3, or 4 kinds of them)  

Gas	Measuring Range(standard)	Measuring Range(optional)	Resolution	Response Time
combustible gas (EX)	0-100%LEL	0-100%VOL	1%LEL/1%vol	</=15S
oxygen(O2)	0-30%VOL	0-30%VOL	0.1%vol	</=15S
sulfuretted hydrogen (H2S)	0-100PPm	0-50,200,1000PPm	0.1/1PPm	</=15S
carbon monoxide (CO)	0-1000PPm	0-500/2000/5000PPm	0.1/1PPm	</=15S
nitrogen dioxide (NO2)	0-20PPm	0-50,1000PPm	0.1/1PPm	</=20S
carbon dioxide (CO2)	0-5000PPM	0-1%,5%,10%VOL	1PPM/0.01%VOL	</=20S
nitric oxide(NO)	0-250PPm	0-500,1000PPm	1PPm	</=20S
sulfur dioxide (SO2)	0-20PPm	0-50,1000PPm	0.1/1PPm	</=20S
chlorine (CL2)	0-20PPm	0-10,100PPm	0.1PPm	</=20S
ammonia gas (NH3)	0-100PPm	0-50,500,1000PPm	0.1/1PPm	</=20S
hydrogen (H2)	0-100%LEL	0-1000ppm	1%LEL/1ppm	</=20S
hydrogen phosphide (PH3)	0-20ppm	0-20, 0-100PPM	0.1PPM	</=20S
hydrogen chloride(HCL)	0-20PPm	0-20,50,100PPm	0.01/0.1PPm	</=20S
chlorine dioxide (CLO2)	0-50PPM	0-10,100PPm	0.1PPm	</=20S
hydrogen cyanide (HCN)	0-50PPM	0-100PPm	0.1/0.01PPm	</=20S
ethylene oxide (ETO)	0-100PPM	0-100PPm	1PPM/0.1PPM	</=20S
ozone (O3)	0-10PPm	0-20,100PPm	0.01PPm/0.1PPM	</=20S
formaldehyde (CH2O)	0-20PPm	0-50,100,PPm	1/0.1PPm	</=20S
fluorine  (F2)	0-10ppm	0-1,10PPm	1PPM/0.1PPM	</=20S
hydrogen fluoride (HF)	0-10PPm	0-1,10,50,100PPm	0.01/0.1PPm	</=20S
dimethylbenzene(C8H10)	0-20PPm	0-5,10,50,100PPm	0.01/0.1PPm	</=20S
methylbenzene(C7H8)	0-20PPm	0-5,10,50,100PPm	0.01/0.1PPm	</=20S
Other gases are optional

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