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AO-4s Multi-Gas Detector

Reference AO-4s

Manufacturer: Bosean

Condition: New

BH-4s portable multi-gas detector could detect combustible gas, O2 and other two types toxic gases continuously and simultaneously. It is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, so as to protect the workers’ life and avoid damage on the relevant equipments

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OVERVIEW
SPECIFICATIONS
VIDEO
Data sheet

Type of Instrument	Air Quality Analyzer
The instrument measures:	Multi-Gas
---------- INDUSTRY ------------	Gas Leak Detectors

Operating & Storage Environment	Temperature: -20℃~55℃ (-4F~122F) Humidity: 5%-95% (Relative humidity non-condensing) Pressure: 95~110kPa
Sampling method	Diffusion type
Detecting Range	CO: 0~1000ppm H2S:0~100 PPM O2: 0~30%vol Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL
Sensor	O2 /H2S / CO: plug-in electrochemical sensor Combustible gas (LEL): plug-in catalytic combustion sensor
Alarm Type	low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
Resolution	0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)
Accuracy	3% F.S
Response time	10s
Repeatability	1%
Zero drift	1%
Display	Alphanumeric large LCD displays the real time gas concentration and alarm stage
Backlight	Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.
Self-checking Function	Self-checking Battery power, display, sensor, hardware failure
Explosion-proof	EXiaIICT4
Protection grade	IP65
Power Supply	Rechargeable lithium battery
Weight	400g
Dimensions	145x69x28mm（L×W×H）

Model	Range	L-alarm	H-alarm
CO	0-1000ppm	35ppm	200ppm
O2	0-30%vol	19.5%vol	23.5%vol
H2	0-100%LEL	20%LEL	50%LEL
H2S	0-100ppm	10ppm	20ppm
CH4	0-100%LEL	20%LEL	50%LEL
C2H4O	0-20ppm	10ppm	15ppm
C2H4	0-100%LEL	20%LEL	50%LEL
C3H8	0-100%LEL	20%LEL	50%LEL
C2H5OH	0-100%LEL	20%LEL	50%LEL
NH3	0-100ppm	25ppm	50ppm
CL2	0-20ppm	5ppm	10ppm
O3	0-20ppm	5ppm	10ppm
SO2	0-100ppm	2ppm	5ppm
PH3	0-20ppm	0.3ppm	5ppm
CO2	0-50000ppm	1000ppm	2000ppm
NO	0-250ppm	20ppm	50ppm
NO2	0-20ppm	5ppm	10ppm
HCN	0-500ppm	10ppm	20ppm
HCL	0-50ppm	10ppm	20ppm
CH2O	0-10ppm	2ppm	5ppm
VOC	0-100ppm	20ppm	50ppm
C6H6	0-100ppm	20ppm	50ppm