BH-4A Portable Multi Gas Detector

BH-4A 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.

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.