Threshold gas detectors DG/EM
New
Coming soon
New
Coming soon
Cost-effective detection devices for toxic and combustible gases or refrigerants, with splash-proof construction and RS-485 bus connectivity
The DG/EF two-threshold, economical detectors are designed to detect the presence of dangerous gas concentrations in the air in industrial, enclosed spaces. They have a replaceable sensor module with two standard alarm thresholds (thresholds set at the production stage, built-in third threshold signaled only optically).
DG/EF detectors are designed to work with:
- threshold control units of type MD-1.A/T, MD-1, MD-2, MD-4;
- measuring and threshold control units of type MDP-1.A/T, MDP-1 PLUS, MDP-4, MDP-8, MDP-16.
DG/EF are detectors of standard design and cannot be used in areas classified as hazardous due to the presence of gases, vapors, or dust.
Features
- replaceable gas sensor: semiconductor, optical (Infra-Red);
- two standard alarm thresholds set during production (the third threshold is usually the upper measurement range of the gas sensor, signaled only visually), 4-wire interface;
- built-in event history (analysis available from the manufacturer), indication of the recommended calibration period expiry; built-in test procedure for recognizing output cables (after power-up);
- thermal compensation system (can be used in variable environmental conditions);
- easy gas penetration through the sensor cover = relatively short detector response time;
- built-in optical signaling (multi-color LED);
- removable terminals with the possibility of mounting single- and multi-wire cores (cable – without crimping sleeves);
- splash-proof IP44 gas sensor cover (in the recommended mounting position);
- can be equipped with a mechanical cover made of AR-1 profiled pipes (installation in areas exposed to mechanical damage, e.g., warehouses, wholesale stores, parking lots);
- all detectors are calibrated in GAZEX Calibration Laboratory operating in accordance with the PN-EN ISO/IEC 17025 standard (PCA accreditation no. AP150).
Offered models
| Model | Gas sensor module | Sensor | Substance/property | Standard alarm thresholds | Measuring range | UoM | Supply voltage | |
|---|---|---|---|---|---|---|---|---|
| DG-14/EM | New | MS-14/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
5—40 |
%LEL |
24 V DC |
| DG-15/EM | New | MS-15/N | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(40) |
5—40 |
%LEL |
24 V DC |
| DG-22/EM | New | MS-22/NL | Semiconductor |
Carbon monoxide (CO) |
20/100/(200) |
20—1000 |
ppm |
24 V DC |
| DG-8R8/EM | New | MS-8R8/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/2 |
0—2 |
%v/v |
24 V DC |
| Model | Gas sensor module | Sensor | Substance/property | Standard alarm thresholds | Measuring range | UoM | Supply voltage | Contact control outputs | Voltage control outputs 12VDC | Two-state outputs (threshold) | Control output "Fault" | Output controlling the shut-off valve | Visual signalling, built-in | Acoustic signaling, built-in | Internal battery | Dimensions | Price excl. VAT | Price inc. VAT | C.g. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DG-14/EM | New | MS-14/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
5—40 |
%LEL |
24 V DC | — | — | — | — | — | ✓ | — | — | 110 x 153 x 60 mm | F | ||
| DG-15/EM | New | MS-15/N | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(40) |
5—40 |
%LEL |
24 V DC | — | — | — | — | — | ✓ | — | — | 110 x 153 x 60 mm | F | ||
| DG-22/EM | New | MS-22/NL | Semiconductor |
Carbon monoxide (CO) |
20/100/(200) |
20—1000 |
ppm |
24 V DC | — | — | — | — | — | ✓ | — | — | 110 x 153 x 60 mm | F | ||
| DG-8R8/EM | New | MS-8R8/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/2 |
0—2 |
%v/v |
24 V DC | — | — | — | — | — | ✓ | — | — | 110 x 153 x 60 mm | F | ||
Suggested products
Splash-proof enclosures to protect detectors from adverse weather conditions and mechanical damage
Test sets for verifying the correct operation of detectors by injecting a gaseous test mixture into the measuring chamber of the detector