41, Lorong Palas Southern Park,
41200 Klang,
Selangor, Malaysia.
+6016-221 9992
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NFASIA INSTRUMENTS AND CALIBRATIONS
41, Lorong Palas Southern Park,
41200 Klang,
Selangor, Malaysia.
41, Lorong Palas Southern Park,
41200 Klang,
Selangor, Malaysia.
BOSEAN BH-4A PORTABLE 4 IN 1 GAS DETECTOR O2, CO, H2S, LEL
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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 |
¨Q±5% F.S. |
|
Response Time |
¨Q30s |
|
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¡æ¡«50¡æ, £¼95%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 |
¨R8h 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 |