Factory best selling Door Breaker - Portable CH4,O2,CO,H2S multi-gas detector CD4 – Topsky
Factory best selling Door Breaker - Portable CH4,O2,CO,H2S multi-gas detector CD4 – Topsky Detail:
Applications
CD4 portable Multi-gas detector is an intrinsically safe and explosion-proof instrument and is designed to deter the gases. It can simultaneously monitors up to four atmospheric hazards including carbon monoxide (CO), oxygen (O2), combustible gas (%LEL), and hydrogen sulphide(H2S). Compact and lightweight, CD4 portable Multi-gas detector activates audible, visual and vibrating alarms in the event of a low or high alarm condition.
CD4 portable Multi-gas detector is unparalleled in its versatility, capability and overall value. Water-resistant line of portable gas detectors has transformed the market with its matchless array of features.
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the hazardous and toxic gases
Structure
CD4 adopts natural diffusion sampling method.Measured value is expressed as a percentage volume with three
effective reading which can display positive or negative value.Resolution respectively CH4 not less than 0.01% ,
oxygen 0.1% O2, H2S 1 x 10-6 and CO 1 x 10-6.It is with sound and light alarm and alarm self-check function.When
limit of methane concentrations over measurement range, measurement instrument has the function of protecting
carrier catalytic element, and are keeping the indications of the tester overrun


Technical specification
| Sensor | Catalytic combustion sensor (combustible gas);Electrochemical sensors (CO,O2,H2S) |
| Measurement of Gas | combustible gas (CH4), carbon monoxide (CO),oxygen (O2), hydrogen sulfide (H2S) |
| Range | CH4: 0~4.00%(v/v); combustible gas 0-100%(LEL) |
| O2: 0~30.0%VOL | |
| CO: 0~1000ppm | |
| H2S: 0~100ppm | |
| Accuracy | CH4: +10% (1%LEL) |
| O2: +0.7%VOL | |
| CO: +5% | |
| H2S: +5% | |
| Resolution | CH4: 0.1%CH4 (1%LEL) |
| O2: 0.1%VOL | |
| CO: 1ppm | |
| H2S: 1ppm | |
| Alarms | Visual,audible(75 dB) |
| Typical battery life | ≥10 hours |
| Explosion protection | Exibd I |
| Protection grade | IP54 |
| External Dimensions/ Weight | 105(L)×56(W)×28(H) mm/250g |
Accessories
Battery, Carrying case and Operate guidebook

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With our outstanding administration, powerful technical capability and strict top quality handle procedure, we go on to provide our purchasers with reliable good quality, reasonable selling prices and excellent services. We goal at becoming certainly one of your most responsible partners and earning your gratification for Factory best selling Door Breaker - Portable CH4,O2,CO,H2S multi-gas detector CD4 – Topsky , The product will supply to all over the world, such as: Canberra, Manchester, Marseille, During in 11 years, We have participated in more than 20 exhibitions, obtains the highest praise from each customer. Our company has been devoting that "customer first" and committed to helping customers expand their business, so that they become the Big Boss !
It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.




