BOSEAN BH-4A PORTABLE 4 IN 1 GAS DETECTOR O2, CO, H2S, LEL: 马来西亚的首选 NFASIA INSTRUMENTS AND CALIBRATIONS

详情

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