DG/M

Digital detector type DG/M is designed for continuous monitoring of the concentration of specified gas on the premises monitored by Digital Gas Detection System. When the concentration exceeds a preset threshold, the detector produces a signal in the system via RS-485 network and switches on built-in LEDs.

Detector can be equipped with a semiconductor, electrochemical or Infra-Red sensor.

The detector has a removable module with the intelligent sensor, which facilitates maintenance and lowers operating costs. Detector DG/M cannot be used in hazardous locations.

Scope of application

  • industrial areas, factories, logistics centers, public buildings
  • dispersed gas detection systems

Features

  • communication, control and transfer of information through the port RS-485 with MODBUS RTU protocol;
  • short response time;
  • gas sensor in intelligent, EXCHANGEABLE module;
  • built-in microprocessor control provides reliability, stability, thermal compensation system, the history of alarm, semi-automatic address control;
  • 3 or 2 alarm thresholds mode or gas concentration measurement mode;
  • optical signaling (4x LEDs); fast removable connection pins for FTP type cables;
  • splash-proof case (IP44)
  • 2 cable glands enabling easy connection of multiple detectors in series;
  • optional: additional steel pipes cover (AR-1d) or the duct-mouting casing (version DG…/Mw);
  • 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

Name Sensor Substance/property Standard alarm thresholds or measuring range Supply voltage Net price C/G
RS485 Semiconductor Methane (CH4)
10/30
%LEL
24VDC 679.00 zł S
RS485 Semiconductor Methane (CH4)
10/30
%LEL
24VDC 679.00 zł S
RS485 Semiconductor Liquefied petroleum gas (LPG)
10/30
%LEL
24VDC 679.00 zł S
RS485 Semiconductor Carbon monoxide (CO)
20/100
ppm
24VDC 679.00 zł N
RS485 Semiconductor Organic compounds
20/40
%LEL
24VDC 759.00 zł N
RS485 Semiconductor Ammonia (NH3)
500/1500
ppm
24VDC 719.00 zł N
RS485 Semiconductor Hydrofluorocarbons (HFC)
1000/2000
ppm
24VDC 719.00 zł N
RS485 Semiconductor Acetylene (C2H2)
or Hydrogen (H2)
10/30
%LEL
24VDC 719.00 zł N
RS485 Semiconductor Hydrogen (H2)
20/40
%LEL
24VDC 679.00 zł S
RS485 Semiconductor Temperature (T)

°C
24VDC 489.00 zł N
RS485 Electrochemical Arsine (AsH3)
0,2/0,4
ppm
24VDC N
RS485 Electrochemical Diborane (B2H6)
0,2/0,4
ppm
24VDC N
RS485 Electrochemical Chlorine (Cl2)
1/3
ppm
24VDC N
RS485 Electrochemical Chlorine dioxide (ClO2)
0,1/0,3 (TWA/STEL)
ppm
24VDC N
RS485 Electrochemical Phosgene (COCl2)
0,2/0,4
ppm
24VDC N
RS485 Electrochemical Ethylene oxide (C2H4O)
2/5
ppm
24VDC N
RS485 Electrochemical Hydrogen chloride (HCl)
3,4/6,8 (TWA/STEL)
ppm
24VDC N
RS485 Electrochemical Hydrogen cyanide (HCN)
3/6
ppm
24VDC N
RS485 Electrochemical Nitrogen dioxide (NO2)
1/3
ppm
24VDC N
RS485 Electrochemical Nitrogen monoxide (NO)
2/– (TWA/STEL)
ppm
24VDC N
RS485 Electrochemical Ozone (O3)
0,2/0,3
ppm
24VDC N
RS485 Electrochemical Hydrogen phosphide (PH3)
0,1/0,2 (TWA/STEL)
ppm
24VDC N
RS485 Electrochemical Hydrogen selenide (H2Se)
1/3
ppm
24VDC N
RS485 Electrochemical Silane (SiH4)
5/10
ppm
24VDC N
RS485 Electrochemical Sulfur dioxide (SO2)
0.5/1 (TWA/STEL)
ppm
24VDC N
RS485 Electrochemical Carbon monoxide (CO)
20/100
ppm
24VDC 919.00 zł N
RS485 Electrochemical Ammonia (NH3)
20/40 (TWA/STEL)
ppm
24VDC 1,019.00 zł N
RS485 Electrochemical Ammonia (NH3)
20/40 (TWA/STEL)
ppm
24VDC 1,219.00 zł N
RS485 Electrochemical Ammonia (NH3)
500/800
ppm
24VDC 1,019.00 zł N
RS485 Electrochemical Hydrogen sulfide (H2S)
5/10 (TWA/STEL)
ppm
24VDC 919.00 zł N
RS485 Electrochemical Hydrogen (H2)
500/800
ppm
24VDC 1,019.00 zł N
RS485 Electrochemical Oxygen (O2)
19/18
%v/v
24VDC 869.00 zł S
RS485 Infra-red Methane (CH4)
10/30
%LEL
24VDC 1,619.00 zł S
RS485 Infra-red Liquefied petroleum gas (LPG)
10/30
%LEL
24VDC 1,619.00 zł S
RS485 Infra-red Organic compounds
20/40
%LEL
24VDC 1,759.00 zł N
RS485 Infra-red Hydrofluorocarbons (HFC)
500/1500
ppm
24VDC 2,899.00 zł N
RS485 Infra-red Sulfur hexafluoride (SF6)
500/1500
ppm
24VDC 2,899.00 zł N
RS485 Infra-red Carbon dioxide (CO2)
0,5/1,5
%v/v
24VDC 1,119.00 zł S
RS485 Infra-red Carbon dioxide (CO2)
0,5/1,5
%v/v
24VDC 1,619.00 zł N

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.

Suggested products

Splash-proof enclosures AP-1
Splash-proof enclosures to protect detectors from adverse weather conditions and mechanical damage
Tubular shields AR-1
Profiled tube guards to protect the detector from direct mechanical damage
DG/w
Adaptation of DG/F, DG/M, DG/P or DG/PV detectors for installation into a ventilation duct
MR2
Module extending functionality of DG/M detectors with two NO/NC relays
Gas test kits GTS
Test kits for checking the correct functioning of detectors