DG-P/MR

Digital DG-P/MR detectors are designed for continuous monitoring of gases indoors. The detector performs cyclic measurements of the gas concentration in ambient air . When preset concentration values are exceeded (for a threshold version), the detector’s optical alarm signaling is activated, the built-in relays change their status and the information is transferred to a digital control module (for the measurement version the concentration value) - using a network in the industrial standard RS-485. The detectors are designed for operation in the Digital Gas Detection System.

The detectors have an exchangeable module with a semiconductor, electrochemical or optical sensor (Infra-Red). The interchangeability of the sensory modules improves maintenance, simplifies calibration and reduces operating costs.

The DG-P/MR detectors are of standard design and cannot be used in areas classified as explosive atmospheres of gases, vapours or dust.

Area of application

  • industrial plants, logistics centres, public facilities;
  • extensive rooms at risk of toxic or explosive gas emissions with locally controlled sirens.

Features

  • communication, control and transmission of information through the port in RS-485 standard, with MODBUS RTU protocol;
  • two alarm thresholds or measurement mode (for electrochemical sensors and Infra-Red);
  • two built-in relays with NO/NC contact, on a removable board (for A1 and A2 state, possibility of threshold adjustment in the measurement mode);
  • sensor in an interchangeable intelligent module (interchangeable with DG/F and DG/P type detectors);
  • sensor can be selected for the application;
  • short detector response time;
  • built-in control microprocessor means reliable and stable operation;
  • thermal compensation system;
  • history of alarm states;
  • semi-automatic addressing in digital network (without opening the housing);
  • removable, screwless terminals with possibility of connecting two FTP wires;
  • selective LED optical optimization;
  • two cable entries – easy connection of successive detectors (loop-through);
  • optionally, the possibility of being equipped with an additional casing made of steel pipes (AR-1d) or a casing for ventilation ducts (DG/w version);
  • configuration of detector settings via dedicated software “DETnet View”, available at https://www.gazex.pl/en/software/;
  • all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation no. AP150).

Offered models

Name Sensor Substance/property Standard alarm thresholds or measuring range Supply voltage Net price C/G
RS485 Electrochemical Arsine (AsH3)
0 ÷ 1
ppm
24VDC N
RS485 Electrochemical Diborane (B2H6)
0 ÷ 1
ppm
24VDC N
RS485 Electrochemical Chlorine (Cl2)
0 ÷ 10
ppm
24VDC N
RS485 Electrochemical Chlorine dioxide (ClO2)
0 ÷ 1
ppm
24VDC N
RS485 Electrochemical Phosgene (COCl2)
0 ÷ 1
ppm
24VDC N
RS485 Electrochemical Ethylene oxide (C2H4O)
0 ÷ 20
ppm
24VDC N
RS485 Electrochemical Hydrogen chloride (HCl)
0 ÷ 30
ppm
24VDC N
RS485 Electrochemical Hydrogen cyanide (HCN)
0 ÷ 30
ppm
24VDC N
RS485 Electrochemical Nitrogen dioxide (NO2)
0 ÷ 20
ppm
24VDC N
RS485 Electrochemical Nitrogen monoxide (NO)
0 ÷ 100
ppm
24VDC N
RS485 Electrochemical Ozone (O3)
0 ÷ 1
ppm
24VDC N
RS485 Electrochemical Hydrogen phosphide (PH3)
0 ÷ 5
ppm
24VDC N
RS485 Electrochemical Hydrogen selenide (H2Se)
0 ÷ 5
ppm
24VDC N
RS485 Electrochemical Silane (SiH4)
0 ÷ 50
ppm
24VDC N
RS485 Electrochemical Sulfur dioxide (SO2)
0 ÷ 20
ppm
24VDC N
RS485 Electrochemical Carbon monoxide (CO)
0 ÷ 500
ppm
24VDC 949.00 zł N
RS485 Electrochemical Ammonia (NH3)
0 ÷ 100
ppm
24VDC 1,049.00 zł N
RS485 Electrochemical Ammonia (NH3)
0 ÷ 100
ppm
24VDC 1,249.00 zł N
RS485 Electrochemical Ammonia (NH3)
0 ÷ 1000
ppm
24VDC 1,049.00 zł N
RS485 Electrochemical Hydrogen sulfide (H2S)
0 ÷ 100
ppm
24VDC 949.00 zł N
RS485 Electrochemical Hydrogen (H2)
0 ÷ 1000
ppm
24VDC 1,049.00 zł N
RS485 Electrochemical Oxygen (O2)
0 ÷ 25
%v/v
24VDC 899.00 zł S
RS485 Infra-red Methane (CH4)
0 ÷ 100
%LEL
24VDC 1,649.00 zł N
RS485 Infra-red Liquefied petroleum gas (LPG)
0 ÷ 100
%LEL
24VDC 1,649.00 zł N
RS485 Infra-red Organic compounds
0 ÷ 100
%LEL
24VDC 1,789.00 zł N
RS485 Infra-red Hydrofluorocarbons (HFC)
0 ÷ 2000
ppm
24VDC 2,929.00 zł N
RS485 Infra-red Sulfur hexafluoride (SF6)
0 ÷ 2000
ppm
24VDC 2,929.00 zł N
RS485 Infra-red Carbon dioxide (CO2)
0 ÷ 2
%v/v
24VDC 1,149.00 zł N
RS485 Infra-red Carbon dioxide (CO2)
0 ÷ 5
%v/v
24VDC 1,649.00 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
Gas test kits GTS
Test kits for checking the correct functioning of detectors