Threshold gas detectors DG.EN/M
Cost-effective threshold detectors of toxic and combustible gases (also oxygen and Freon HFC) with splash-proof construction and RS-485 bus connectivity
The economical, digital detector DG.EN/M is designed for continuous monitoring of gas concentration in enclosed spaces. Upon exceeding the preset gas concentration level:
- the optical alarm signalization turns on
- the alarm information is sent via network in RS-485 standard (MODBUS RTU protocol) to the control module (e.g. MDD-256/T).
DG.EN/M has an detachable sensor module with carbon monoxide, methane, propane-butane or HFC sensor. Interchangeable sensor module streamlines maintenance, simplifies calibration and reduces operating costs.
Scope of application
- industrial area or installations individual protection
- dispersed gas detection systems
- factories, logistic centers, public buildings
- garages and underground parking - ventilation control, and warning of the LPG/CNG discharge or CO presence
- rooms at risk of excess oxygen (oxygen therapy, HFNO)
Features
- communication, control and transfer of information through the RS-485 network with MODBUS RTU protocol;
- measurement of averaged concentration of carbon monoxide or threshold detection of explosive gases;
- semiconductor gas sensor in intelligent, exchangeable module;
- built-in microprocessor control provides reliability, stability, thermal compensation system, the history of alarm events, semi-automatic address control;
- 3 or 2 alarm thresholds for CO / explosive gas;
- robust, splash-proof housing with high impact ABS (option: polycarbonate or aluminum);
- all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation No AP150).
Block diagram of the system
Offered models
| Model | Gas sensor module | Sensor | Substance/property | Standard alarm thresholds or measuring range | Supply voltage | Net price | C/G | ||
|---|---|---|---|---|---|---|---|---|---|
| DG-11.EN/M |
|
MS-11.EG | Semiconductor |
Methane (CH4) |
10/20/30 |
%LEL |
24VDC | PLN469.00 | N |
| DG-14.EN/M |
|
MS-14.EG | Semiconductor |
Methane (CH4) |
10/20/30 |
%LEL |
24VDC | PLN349.00 | S |
| DG-15.EN/M |
|
MS-15.EG | Semiconductor |
Liquefied petroleum gas (LPG) |
10/20/30 |
%LEL |
24VDC | PLN349.00 | S |
| DG-22.EN/M |
|
MS-22.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | PLN349.00 | S |
| DG-61.EN/M |
|
MS-61.EG | Semiconductor |
Hydrofluorocarbons (HFC) |
1000/2000/(2500) |
ppm |
24VDC | PLN469.00 | N |
| DG-73.EN/M |
|
MS-73.EG | Semiconductor |
Hydrogen (H2) |
10/20/30 |
%LEL |
24VDC | PLN469.00 | N |
| DG-20.EN/M |
|
MS-20.EG | Electrochemical |
Carbon monoxide (CO) Nitrogen dioxide (NO2) |
30/60/150 3/6/15 |
ppm ppm |
24VDC | PLN669.00 | N |
| DG-9E.EN/M |
|
MS-9E.EG | Electrochemical |
Oxygen (O2) |
22,5/23,5/25 |
%v/v |
24VDC | PLN559.00 | N |
| DG-8R8.EN/M |
|
MS-8R8.EG | Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
24VDC | PLN539.00 | N |
| DG-28.EN/M |
|
MS-28.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | PLN619.00 | N |
| Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
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Detection of substance/property in other areas or other substances/properties is possible = special execution, requires consultation.
In special cases, it is possible to select the detector parameters for a specific application = required analysis of the conditions of use.
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