Threshold gas detectors DG.EN/M
Cost-effective threshold detectors of toxic and combustible gases (also oxygen and refrigerants) 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-14.EN/M |
|
MS-14.EG-EN | Semiconductor |
Methane (CH4) |
10/30/(50) |
%LEL |
24VDC | PLN419.00 | S |
| DG-15.EN/M |
|
MS-15.EG-EN | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
24VDC | PLN419.00 | S |
| DG-22.EN/M |
|
MS-22.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | PLN419.00 | S |
| DG-61.EN/M |
|
MS-61.EG | Semiconductor |
Refrigerant R32 or Refrigerant R410A |
1000/2000/(2500) |
ppm |
24VDC | PLN539.00 | N |
| DG-73.EN/M |
|
MS-73.EG | Semiconductor |
Hydrogen (H2) |
10/20/30 |
%LEL |
24VDC | PLN539.00 | N |
| DG-9E5.EN/M |
|
MS-9E5.EG | Electrochemical |
Oxygen (O2) |
19/18/25 |
%v/v |
24VDC | PLN629.00 | N |
| DG-20.EN/M |
|
MS-20.EG | Electrochemical |
Nitrogen dioxide (NO2) Carbon monoxide (CO) |
3/6/15 30/60/150 |
ppm ppm |
24VDC | PLN739.00 | N |
| DG-8R8.EN/M |
|
MS-8R8.EG | Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
24VDC | PLN609.00 | N |
| DG-28.EN/M |
|
MS-28.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | PLN689.00 | N |
| Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
||||||
| Model | Gas sensor module | Sensor | Substance/property | Standard alarm thresholds or measuring range | Supply voltage | Contact control outputs | Voltage control outputs 12VDC | Two-state outputs (threshold) | Control output "Fault" | Output controlling the shut-off valve | Output in 4-20mA standard | Output in 0-10V standard | Output in 2-10V standard | Output in RS-485 standard | Visual signalling, built-in | Acoustic signaling, built-in | Internal battery | Dimensions | Net price | C.g. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DG-14.EN/M |
|
MS-14.EG-EN | Semiconductor |
Methane (CH4) |
10/30/(50) |
%LEL |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN419.00 | S |
| DG-15.EN/M |
|
MS-15.EG-EN | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN419.00 | S |
| DG-22.EN/M |
|
MS-22.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN419.00 | S |
| DG-61.EN/M |
|
MS-61.EG | Semiconductor |
Refrigerant R32 or Refrigerant R410A |
1000/2000/(2500) |
ppm |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN539.00 | N |
| DG-73.EN/M |
|
MS-73.EG | Semiconductor |
Hydrogen (H2) |
10/20/30 |
%LEL |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN539.00 | N |
| DG-9E5.EN/M |
|
MS-9E5.EG | Electrochemical |
Oxygen (O2) |
19/18/25 |
%v/v |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | — | PLN629.00 | N |
| DG-20.EN/M |
|
MS-20.EG | Electrochemical |
Nitrogen dioxide (NO2) Carbon monoxide (CO) |
3/6/15 30/60/150 |
ppm ppm |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 95 x 160 x 68 mm | PLN739.00 | N |
| DG-8R8.EN/M |
|
MS-8R8.EG | Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 82 x 95 x 68 mm | PLN609.00 | N |
| DG-28.EN/M |
|
MS-28.EG | Semiconductor |
Carbon monoxide (CO) |
30/60/150 |
ppm |
24VDC | — | — | — | — | — | — | — | — | ✓ | ✓ | — | — | 95 x 160 x 68 mm | PLN689.00 | N |
| Infra-red |
Carbon dioxide (CO2) |
1000/1400/1800 |
ppm |
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Suggested products
Tubular shields AR-1
Profiled tube guards to protect the detector from direct mechanical damage
Gas test sets GTS
Test sets for verifying the correct operation of detectors by injecting a gaseous test mixture into the measuring chamber of the detector