Threshold gas detectors DG.EN/M

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.
RS-485 MS-14.EG-EN Semiconductor Methane (CH4)
10/30/(50)
%LEL
24VDC PLN389.00 S
RS-485 MS-15.EG-EN Semiconductor Liquefied petroleum gas (LPG)
10/30/(50)
%LEL
24VDC PLN389.00 S
RS-485 MS-22.EG Semiconductor Carbon monoxide (CO)
30/60/150
ppm
24VDC PLN389.00 S
RS-485 MS-61.EG Semiconductor Hydrofluorocarbon (R410A)
or Hydrofluorocarbon (R32)
1000/2000/(2500)
ppm
24VDC PLN509.00 N
RS-485 MS-73.EG Semiconductor Hydrogen (H2)
10/20/30
%LEL
24VDC PLN509.00 N
New RS-485 MS-9E5.EG Electrochemical Oxygen (O2)
22,5/23,5/25
%v/v
24VDC PLN599.00 N
RS-485 MS-20.EG Electrochemical Carbon monoxide (CO)
Nitrogen dioxide (NO2)
30/60/150
3/6/15
ppm
ppm
24VDC PLN709.00 N
RS-485 MS-8R8.EG Infra-red Carbon dioxide (CO2)
1000/1400/1800
ppm
24VDC PLN579.00 N
RS-485 MS-28.EG Semiconductor Carbon monoxide (CO)
30/60/150
ppm
24VDC PLN659.00 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.
RS-485 MS-14.EG-EN Semiconductor Methane (CH4)
10/30/(50)
%LEL
24VDC 82 x 95 x 68 mm PLN389.00 S
RS-485 MS-15.EG-EN Semiconductor Liquefied petroleum gas (LPG)
10/30/(50)
%LEL
24VDC 82 x 95 x 68 mm PLN389.00 S
RS-485 MS-22.EG Semiconductor Carbon monoxide (CO)
30/60/150
ppm
24VDC 82 x 95 x 68 mm PLN389.00 S
RS-485 MS-61.EG Semiconductor Hydrofluorocarbon (R410A)
or Hydrofluorocarbon (R32)
1000/2000/(2500)
ppm
24VDC 82 x 95 x 68 mm PLN509.00 N
RS-485 MS-73.EG Semiconductor Hydrogen (H2)
10/20/30
%LEL
24VDC 82 x 95 x 68 mm PLN509.00 N
New RS-485 MS-9E5.EG Electrochemical Oxygen (O2)
22,5/23,5/25
%v/v
24VDC PLN599.00 N
RS-485 MS-20.EG Electrochemical Carbon monoxide (CO)
Nitrogen dioxide (NO2)
30/60/150
3/6/15
ppm
ppm
24VDC 95 x 160 x 68 mm PLN709.00 N
RS-485 MS-8R8.EG Infra-red Carbon dioxide (CO2)
1000/1400/1800
ppm
24VDC 82 x 95 x 68 mm PLN579.00 N
RS-485 MS-28.EG Semiconductor Carbon monoxide (CO)
30/60/150
ppm
24VDC 95 x 160 x 68 mm PLN659.00 N
Infra-red Carbon dioxide (CO2)
1000/1400/1800
ppm

Suggested products

AR-1
Tubular shields AR-1
Profiled tube guards to protect the detector from direct mechanical damage
GTS
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