GAS DETECTOR
BOSEAN BH-4A PORTABLE 4 IN 1 GAS DETECTOR O2, CO, H2S, LEL
BOSEAN BH-4A PORTABLE 4 IN 1 GAS DETECTOR O2, CO, H2S, LEL

 

BOSEAN BH-4A PORTABLE 4 IN 1 GAS DETECTOR O2, CO, H2S, LEL

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Category: GAS DETECTOR Available
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Description

BOSEAN BH-4A Portable 4-in-1 Gas Detector 

BH-4A, using 2.0 inch industrial level LCD display, adopts imported gas sensor and microprocessor technology, fast response, high sensitivity, performance stable and good repeatability, small in size, easier to carry and operate, these all makes it very popular in the market. 
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 workers' life and avoid damage on the relevant equipment. 

INTRODUCTION

Detecting gas: 

Combustible gas, H2S, CO, O2

*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.

*Large 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. 

Accuracy                                                                  

≦±5% F.S.

Response Time

≦30s

Indication

LCD displays real-time and system status; LED, audio and vibration alert for gas leakage, fault and low voltage.
Sensor O2 /H2S / CO: plug-in electrochemical sensor; Combustible gas (LEL): plug-in catalytic combustion sensor.

Working environment

-20℃～50℃, ＜95%RH (no dew)
Alarm Type                                                                                        low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
Backlight Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.

Power Source

DC3.7V Li-on battery, 1800mAh

Charging time

6h~8h

Working time

≧8h continuously (without alarming)

Gas Sensor Life

2 years

Explosion-proof grade

ExiaIICT3

Protection Grade

 IP65 

Weight

Appr. 400g (with battery)

Dimensions

130mm×67mm×30mm(L × W × H)

Standard accessories

Suit case packaging, 1pc; Charger, 1pc; Calibration cap, 1pc; Communications cable, 1pc; User manual, 1pc.

SPECIFICATIONS
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 0-20ppm 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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