AO-CD4 Mining Use Multi-gas Detector




AO-CD4 mining use multi-gas detector with integrated circuit technology and high sensitivity catalytic and electrochemical gas sensors.

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The AO-CD4 mining use multi gas detector adopts large-scale integrated circuit technology and complies with international intelligent technology standards. This detector uses catalytic and electrochemical gas sensors to detect gases through natural diffusion, with excellent sensitivity and repeatability. Convenient use and maintenance greatly meet the high reliability requirements of equipment for safety monitoring in industrial sites such as coal mines. The shell is made of high-strength engineering plastic, which has high strength, good hand feel, and is waterproof, dustproof, and explosion-proof. This tester is widely used in industries such as coal mine, petroleum, chemical industry, environmental protection, metallurgy, refining, gas transmission and distribution, biochemical medicine, agriculture, etc.

Detecting gas CH4, H2S, CO, O2
Sampling Method Natural diffusion
Sensor Plug-in electrochemical sensor
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.
Alarm Type Low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
Working environment -20℃~50℃, <95%RH (no dew)
Power Source DC3.7V Li-on battery, 1800mAh
Charging time 6h~8h
Working time ≧8h continuously (without alarming)
Resolution 0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)
Self-checking Function Self-checking Battery power, display, sensor, hardware failure
Gas Sensor Life 2 years
Explosion-proof grade ExiaIICT3
Protection Grade IP65
Weight Approx. 400g (with battery)
Dimensions 130mm×67mm×30mm (L × W × H)
Model Range Resolution L-alarm H-alarm
CO 0-1000ppm 1ppm 50ppm 150ppm
O2 0-30%vol 0.1%vol 19.5%vol 23.5%vol
H2S 0-100ppm 0.1ppm 10ppm 20ppm
CH4 0-100%LEL 1%lel 20%LEL 50%LEL

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