JHB4 Methane CH4 detector
Qualifications: Coal Mine Safety Certificate
Explosion-proof Certificate
Inspection Certification
Model : JHB4
Applications:
Infrared Combustible Gas Detector is an intrinsically safe and explosion-proof instrument and is designed to deter Combustible Gas concentration in ambient air continuously and rapidly.
It adopts NDIR infrared technology with high accuracy and fast response. The measuring range of Combustible (CH4) gas is 0-5.0% or 0-100%vol.
Despite its compact size, the Infrared Combustible Gas Detector includes features usually found only in larger multi-gas monitors including a large, OLED display, internal audible/visual alarms and simple push-button operation.
The monitor continuously displays ambient combustible gas readings and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. Infrared Combustible Gas Detector also has a peak/hold feature to show the highest reading during a shift and includes a special flip-cap calibration adapter for quick and simple calibration. It is covered by a two-year warranty from the date of manufacture.
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 combustible gas.
| Feature | Benefit |
| Sensor lifetime | 10 years, NDIR infrared sensor |
| 2-year warranty | Lowers the overall cost of ownership by providing a full 24 months of warranty coverage. |
| Display | High brightness backlight display |
| Calibration | The user’s own can calibrate the detector by operating on it |
| Weight of 102g | Light weight and compact size, can be worn on the belt, shirt pocket, coveralls or hard-hat. |
| Flip-cap calibration feature | Ifrared Combustible Gas Detector has a unique, built in calibration adapter to make calibration easy and eliminates the need to search for a calibration cup. |
| OLED display | Provides continuous display of the actual concentration of combustible gas in the ambient environment as well as remaining battery life. |
| Adjustable low and high alarm setpoints | The user can configure single Ifrared Combustible Gas Detector to suit a number of different applications. |
| High visibility case | From a distance, it’s color makes it easy for Safety Professionals to verify that workers are protected. |
| 5 second delay shut-off protection | Ifrared Combustible Gas Detector cannot be accidentally shut off since the on/off button must be depressed for five continuous seconds. |
Technical specification:
| Sensor |
NDIR infrared |
|
| Sensor lifetime |
10 years |
|
| Range： | 0-5.0%vol | 0-100%vol |
| Accuracy： | Low 1.0%vol / High 3.0%vol | Low 5%vol / High 10%vol |
| Resolution： | 0.01%vol | 1%vol |
| Power Source: |
1500mAH lithium battery ；rechargeable battery |
|
| Temperature Range: |
-4°F to 122°F (-20°C to 50°C) typical |
|
| Humidity Range: |
0 to 95% RH typical |
|
| Alarms: |
Adjustable low and high alarm setpoints |
|
| Explosion protection |
Exibd I |
|
| Protection grade |
IP67 |
|
| Dimensions: |
93mm×49mm×22mm |
|
| Weight: |
102g |
|
Accessories:
Battery, Carrying case and Operate guidebook
