Complaint
BH-4s 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.
1) Advanced MCU control with low power consumption
2) Adjustable low and high alarm level
3) Adjustable calibrating level
4) High concentration protection for combustible gas
5) Self test for the combustible gas sensor
6) Low battery indication
7) Replaceable sensor module
8) Self-adjustment function
9) Visual and audible alarm with vibration
10) STEL and TWA alarming for toxic gases
11) Advanced self-examination and self-renovation function
12) Password management to avoid wrong operation
13) Explosive proof housing
Operating & Storage Environment | Temperature: -20°C~55°C (-4F~122F) Humidity: 5%-95% (Relative humidity non-condensing) Pressure: 95~110kPa | ||
Sampling method | Diffusion type | ||
Detecting Range | CO: 0~1000ppm H2S:0~100 PPM O2: 0~30%vol Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL | ||
Sensor | O2 /H2S / CO: plug-in electrochemical sensor | ||
Alarm Type | low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm | ||
Resolution | 0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX) | ||
Accuracy | 3% F.S | ||
Response time | 10s | ||
Repeatability | 1% | ||
Zero drift | 1% | ||
Data record | 500 pcs of data storage | ||
Display | Alphanumeric large LCD displays the real time gas concentration and alarm stage | ||
Backlight | Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down. | ||
Self-checking Function | Self-checking Battery power, display, sensor, hardware failure | ||
Explosion-proof | EXiaIICT4 | ||
Protection grade | IP65 | ||
Power Supply | Rechargeable lithium battery | ||
| No | Detecting Gas | Gas | Measure Range | Resolution | Alarm Point (High / Low) |
| 1 | Combustible Gas | EX | 0-100%LEL /0-100%VOL | 1%LEL/1%VOL | 20 / 50% LEL |
| 2 | Oxygen | O2 | 0-25% /30%VOL | 0.1%VOL | 19.5% / 23.5%VOL |
| 3 | Hydrogen Sulfide | H2S | 0-50/100/200/1000 ppm | 0.1 ppm | 10 / 20 ppm |
| 4 | Carbon Monoxide | CO | 0-500/1000/2000/5000 ppm | 1 ppm | 50 / 150 ppm |
| 5 | Nitrogen Dioxide | NO2 | 0-20/50/1000 ppm | 0.1 ppm | 5 / 10 ppm |
| 6 | Nitric Oxide | NO | 0-250/500/1000 ppm | 1 ppm | 50 / 150 ppm |
| 7 | Carbon Dioxide | CO2 | 0-5000 ppm /0-1%/5%/10%VOL | 1 ppm/0.1%VOL | 1000 /2000 ppm |
| 8 | Sulfur Dioxide | SO2 | 0-20/50/100/200/1000 ppm | 0.1 /1 ppm | 5 / 10 ppm |
| 9 | Chlorine | CL2 | 0-20/100/1000 ppm | 0.1 ppm | 5 / 10 ppm |
| 10 | Ammonia | NH3 | 0-50/100/500/1000 ppm | 0.1 ppm | 20 / 50 ppm |
| 11 | Hydrogen | H2 | 0-1000/5000 ppm | 1 ppm | 50 /150 ppm |
| 12 | Phosphine | PH3 | 0-5/20/50/100/500/1000 ppm | 0.1 ppm | 5 / 10 ppm |
| 13 | Hydrogen Chloride | HCL | 0-20/500/1000 ppm | 0.01/0.1 ppm | 5 / 10 ppm |
| 14 | Chlorine Dioxide | CLO2 | 0-10/50/100 ppm | 0.1 ppm | 5 / 10 ppm |
| 15 | Hydrogen Cyanide | HCN | 0-50/100 ppm | 0.01/0.1 ppm | 10 / 20 ppm |
| 16 | Ethylene Oxide | C2H4O | 0-10/20/50/100/200/500 ppm | 0.1 /1 ppm | 20 / 50 ppm |
| 17 | Ozone | O3 | 0-10/20/100 ppm | 0.1 ppm | 2 / 5 ppm |
| 18 | Formaldehyde | CH2O | 0-20/50/100 ppm | 0.1 /1 ppm | 5 / 10 ppm |
| 19 | Hydrogen Fluoride | HF | 0-1/10/50/100 ppm | 0.01 /0.1 ppm | 2 / 5 ppm |
| 20 | Methylbenzene | 0-1/10/20/50/100 ppm | 0.01 /0.1 ppm | 5 / 10 ppm |
Bosean has always strictly implemented the ISO9001 quality management system.
We adhere to the high standards of product quality,strict requirements, adopting the world-class production equipment,
advanced management and production experience,developing the high-quality testing equipment.
Bosean has a strong sales team and a comprehensive service process to serve end customers around the world.
Whenever you have any questions, you can contact us at any time.
Q1:Are you a trading company or manufacturer ? | |||
A1:We aremanufacturer. |
Q2:What about the payment method? | |||
A2:T/T, Paypal, Western Union, L/C is available. |
Q3:Does your company accept customization? | |||
A3:We do customizing service for customers. |
Q4:What about the Shipment? | |||
A4:We'll choose proper transportation mode based on theweight of goods, usually arrange shipment by air express such as DHL,FEDEX,TNT or UPS. | |||
Q5:What about after-sale service? | |||
A5:12 months warranty for all kinds of products. |
