Threshold gas detectors DG/F
Threshold detectors of toxic and combustible gases (also oxygen and refrigerants) with splash-proof construction
Detectors DG/F are used for continuous monitoring of premises for combustible and toxic gases (and oxygen). The detectors come with two preset concentration thresholds for alarm purposes.
DG/F detectors are designed to work only 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/F detectors cannot be used in hazardous locations (according to ATEX Directive).
Features
- two thresholds set at manufacturing stage;
- semiconductor sensor for combustible gases or electrochemical sensor for toxic gases or oxygen;
- easily exchangeable sensor unit for straightforward maintenance;
- easy change of detected gas and easy calibration (all available DG/F sensor units ready to operate in each DG/F detector);
- intelligent sensors with build-in TWA and STEL measurement, alarm history, recommended calibration time mark signal;
- built-in temperature compensation;
- low cost operation;
- long time operation (typically 10 years for semiconductor sensors);
- all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation No AP150).
Typical system configuration
Offered models
| Model | Gas sensor module | Sensor | Substance/property | Standard alarm thresholds or measuring range | Supply voltage | Net price | C.g. | ||
|---|---|---|---|---|---|---|---|---|---|
| DG-12/N | MS-12/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
%LEL |
System powered | PLN769.00 | S | |
| DG-14/N | MS-14/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
%LEL |
System powered | PLN769.00 | S | |
| DG-15/N | MS-15/N | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(40) |
%LEL |
System powered | PLN769.00 | S | |
| DG-22/NL | MS-22/NL | Semiconductor |
Carbon monoxide (CO) |
(TWA/STEL) 20/100/(300) |
ppm |
System powered | PLN819.00 | N | |
| DG-31/N | MS-31/N | Semiconductor |
Organic compounds |
20/40/(50) |
%LEL |
System powered | PLN1,019.00 | N | |
| DG-41/N | MS-41/N | Semiconductor |
Ammonia (NH3) |
500/1500/(2000) |
ppm |
System powered | PLN819.00 | N | |
| DG-61/N | MS-61/N | Semiconductor |
Refrigerant R32 or Refrigerant R410A |
1000/2000/(2500) |
ppm |
System powered | PLN819.00 | N | |
| DG-71/N | MS-71/N | Semiconductor |
Acetylene (C2H2) or Hydrogen (H2) |
10/30/(40) |
%LEL |
System powered | PLN819.00 | N | |
| DG-73/N | MS-73/N | Semiconductor |
Hydrogen (H2) |
10/30/(40) |
%LEL |
System powered | PLN819.00 | S | |
| DG-1KL/N | MS-1KL/N | Catalytic |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | PLN1,199.00 | N | |
| DG-1KL4/N | MS-1KL4/N | Catalytic |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | PLN1,099.00 | N | |
| DG-1KL5/N | MS-1KL5/N | Catalytic |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
System powered | PLN1,099.00 | N | |
| DG-7KL3/N | MS-7KL3/N | Catalytic |
Hydrogen (H2) |
10/30/(50) |
%LEL |
System powered | PLN1,099.00 | N | |
| DG-0E.CL2/N | MS-0E.CL2/N | Electrochemical |
Chlorine (Cl2) |
1/3/(5) |
ppm |
System powered | PLN1,449.00 | N | |
| DG-0E.CLO2/N | MS-0E.CLO2/N | Electrochemical |
Chlorine dioxide (ClO2) |
(TWA/STEL) 0,1/0,3/(0,5) |
ppm |
System powered | PLN2,449.00 | N | |
| DG-0E.ETO/N | MS-0E.ETO/N | Electrochemical |
Ethylene oxide (C2H4O) |
2/5/(10) |
ppm |
System powered | PLN1,449.00 | N | |
| DG-0E.HCL/N | MS-0E.HCL/N | Electrochemical |
Hydrogen chloride (HCl) |
(TWA/STEL) 3,4/6,8/(10) |
ppm |
System powered | PLN1,949.00 | N | |
| DG-0E.NO2/N | MS-0E.NO2/N | Electrochemical |
Nitrogen dioxide (NO2) |
(TWA/STEL) 0,7/1,5/(2) |
ppm |
System powered | PLN1,449.00 | N | |
| DG-0E.O3/N | MS-0E.O3/N | Electrochemical |
Ozone (O3) |
0,2/0,3/(0,5) |
ppm |
System powered | PLN1,949.00 | N | |
| DG-0E.SO2/N | MS-0E.SO2/N | Electrochemical |
Sulfur dioxide (SO2) |
(TWA/STEL) 0,5/1/(5) |
ppm |
System powered | PLN1,449.00 | N | |
| DG-2E/N | MS-2E/N | Electrochemical |
Carbon monoxide (CO) |
(TWA/STEL) 20/100/(200) |
ppm |
System powered | PLN1,199.00 | N | |
| DG-4E/N | MS-4E/N | Electrochemical |
Ammonia (NH3) |
500/800/(800) |
ppm |
System powered | PLN1,199.00 | N | |
| DG-4E/N1 | MS-4E/N1 | Electrochemical |
Ammonia (NH3) |
(TWA/STEL) 20/40/(60) |
ppm |
System powered | PLN1,199.00 | N | |
| DG-4E/N2 | MS-4E/N2 | Electrochemical |
Ammonia (NH3) |
(TWA/STEL) 20/40/(60) |
ppm |
System powered | PLN1,469.00 | N | |
| DG-5E/N | MS-5E/N | Electrochemical |
Hydrogen sulfide (H2S) |
(TWA/STEL) 5/10/(20) |
ppm |
System powered | PLN1,199.00 | N | |
| DG-7E/N | MS-7E/N | Electrochemical |
Hydrogen (H2) |
500/800/(1000) |
ppm |
System powered | PLN1,199.00 | N | |
| DG-9E5/N | MS-9E5/N | Electrochemical |
Oxygen (O2) |
19/18/(17) |
%v/v |
System powered | PLN1,199.00 | N | |
| DG-1R2/N | MS-1R2/N | Infra-red |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | PLN1,999.00 | S | |
| DG-1R5/N | MS-1R5/N | Infra-red |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
System powered | PLN1,999.00 | S | |
| DG-3R/N | MS-3R/N | Infra-red |
Organic compounds |
20/40/(50) |
%LEL |
System powered | PLN2,199.00 | N | |
| DG-6R7/N | MS-6R7/N | Infra-red |
Refrigerant R32 or Refrigerant R410A |
500/1500/(2000) |
ppm |
System powered | PLN3,249.00 | N | |
| DG-6R7/N-SF6 | MS-6R7/N-SF6 | Infra-red |
Sulfur hexafluoride (SF6) |
500/1500/(2000) |
ppm |
System powered | PLN3,249.00 | N | |
| DG-8R/N | MS-8R/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/(2) |
%v/v |
System powered | PLN1,999.00 | N | |
| DG-8R8/N | MS-8R8/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/(2) |
%v/v |
System powered | PLN1,449.00 | S | |
| 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-12/N | MS-12/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN769.00 | S | |
| DG-14/N | MS-14/N | Semiconductor |
Methane (CH4) |
10/30/(40) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN769.00 | S | |
| DG-15/N | MS-15/N | Semiconductor |
Liquefied petroleum gas (LPG) |
10/30/(40) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN769.00 | S | |
| DG-22/NL | MS-22/NL | Semiconductor |
Carbon monoxide (CO) |
(TWA/STEL) 20/100/(300) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN819.00 | N | |
| DG-31/N | MS-31/N | Semiconductor |
Organic compounds |
20/40/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,019.00 | N | |
| DG-41/N | MS-41/N | Semiconductor |
Ammonia (NH3) |
500/1500/(2000) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN819.00 | N | |
| DG-61/N | MS-61/N | Semiconductor |
Refrigerant R32 or Refrigerant R410A |
1000/2000/(2500) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN819.00 | N | |
| DG-71/N | MS-71/N | Semiconductor |
Acetylene (C2H2) or Hydrogen (H2) |
10/30/(40) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN819.00 | N | |
| DG-73/N | MS-73/N | Semiconductor |
Hydrogen (H2) |
10/30/(40) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN819.00 | S | |
| DG-1KL/N | MS-1KL/N | Catalytic |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | — | PLN1,199.00 | N | |
| DG-1KL4/N | MS-1KL4/N | Catalytic |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | — | PLN1,099.00 | N | |
| DG-1KL5/N | MS-1KL5/N | Catalytic |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | — | PLN1,099.00 | N | |
| DG-7KL3/N | MS-7KL3/N | Catalytic |
Hydrogen (H2) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | — | PLN1,099.00 | N | |
| DG-0E.CL2/N | MS-0E.CL2/N | Electrochemical |
Chlorine (Cl2) |
1/3/(5) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,449.00 | N | |
| DG-0E.CLO2/N | MS-0E.CLO2/N | Electrochemical |
Chlorine dioxide (ClO2) |
(TWA/STEL) 0,1/0,3/(0,5) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN2,449.00 | N | |
| DG-0E.ETO/N | MS-0E.ETO/N | Electrochemical |
Ethylene oxide (C2H4O) |
2/5/(10) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,449.00 | N | |
| DG-0E.HCL/N | MS-0E.HCL/N | Electrochemical |
Hydrogen chloride (HCl) |
(TWA/STEL) 3,4/6,8/(10) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,949.00 | N | |
| DG-0E.NO2/N | MS-0E.NO2/N | Electrochemical |
Nitrogen dioxide (NO2) |
(TWA/STEL) 0,7/1,5/(2) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,449.00 | N | |
| DG-0E.O3/N | MS-0E.O3/N | Electrochemical |
Ozone (O3) |
0,2/0,3/(0,5) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,949.00 | N | |
| DG-0E.SO2/N | MS-0E.SO2/N | Electrochemical |
Sulfur dioxide (SO2) |
(TWA/STEL) 0,5/1/(5) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,449.00 | N | |
| DG-2E/N | MS-2E/N | Electrochemical |
Carbon monoxide (CO) |
(TWA/STEL) 20/100/(200) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,199.00 | N | |
| DG-4E/N | MS-4E/N | Electrochemical |
Ammonia (NH3) |
500/800/(800) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,199.00 | N | |
| DG-4E/N1 | MS-4E/N1 | Electrochemical |
Ammonia (NH3) |
(TWA/STEL) 20/40/(60) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,199.00 | N | |
| DG-4E/N2 | MS-4E/N2 | Electrochemical |
Ammonia (NH3) |
(TWA/STEL) 20/40/(60) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,469.00 | N | |
| DG-5E/N | MS-5E/N | Electrochemical |
Hydrogen sulfide (H2S) |
(TWA/STEL) 5/10/(20) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,199.00 | N | |
| DG-7E/N | MS-7E/N | Electrochemical |
Hydrogen (H2) |
500/800/(1000) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,199.00 | N | |
| DG-9E5/N | MS-9E5/N | Electrochemical |
Oxygen (O2) |
19/18/(17) |
%v/v |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | — | PLN1,199.00 | N | |
| DG-1R2/N | MS-1R2/N | Infra-red |
Methane (CH4) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,999.00 | S | |
| DG-1R5/N | MS-1R5/N | Infra-red |
Liquefied petroleum gas (LPG) |
10/30/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,999.00 | S | |
| DG-3R/N | MS-3R/N | Infra-red |
Organic compounds |
20/40/(50) |
%LEL |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN2,199.00 | N | |
| DG-6R7/N | MS-6R7/N | Infra-red |
Refrigerant R32 or Refrigerant R410A |
500/1500/(2000) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN3,249.00 | N | |
| DG-6R7/N-SF6 | MS-6R7/N-SF6 | Infra-red |
Sulfur hexafluoride (SF6) |
500/1500/(2000) |
ppm |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN3,249.00 | N | |
| DG-8R/N | MS-8R/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/(2) |
%v/v |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,999.00 | N | |
| DG-8R8/N | MS-8R8/N | Infra-red |
Carbon dioxide (CO2) |
0,5/1,5/(2) |
%v/v |
System powered | — | — | 2 | — | — | — | — | — | — | ✓ | — | — | 110 x 140 x 55 mm | PLN1,449.00 | S | |
Suggested products
Splash-proof enclosures AP-1
Tubular shields AR-1
DG/w
Gas test sets GTS