4 in 1 Gas Detector BH-4S O2 EX H2S CO Four Alarm methods Gas leak Monitor
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.
INTRODUCTION
* Natural diffusion sampling method and high-sensitivity sensor, with high sensitivity and repeatability.
* 32-bit built-in MCU, high reliability and self-adaptation ability.
* Full functions, easy operation.
* CSTN colorful LCD, more intuitionistic, abundant and clear indication.
* Compact design, easy carrying.
* High strength engineering plastics and compound anti-slippery rubber; high strength, water-proof, dust-proof and explosion-proof.
*500pcs data records, can be contact with computer via software. Can print the data records, can store data records, can make the data analysis.
Gas sampling method
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Natural diffusion
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Detecting gas
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Combustible gas, H2S, CO, O2
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Accuracy
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≦±5% F.S.
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Response Time
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≦30s
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Indication
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LCD displays real-time and system status;
LED, audio and vibration alert for gas leakage, fault and low voltage.
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Working environment
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-20℃~50℃ for toxic gases
-40℃~70℃ for Ex
<95%RH (no dew)
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Power Source
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DC3.7V Li-on battery, 1800mAh
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Charging time
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6h~8h
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Working time
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≧8h continuously (without alarming)
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Gas Sensor Life
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2 years
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Explosion-proof grade
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Ex ib IIB T3 Gb
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Protection Grade
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IP65
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Weight
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Appr. 400g (with battery)
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Dimensions
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130mm×67mm×30mm(L × W × H)
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SPECIFICATIONS
Model
|
Range
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L-alarm
|
H-alarm
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CO
|
0-1000ppm
|
35ppm
|
200ppm
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O2
|
0-30%vol
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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
|
0-20ppm
|
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
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