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 GAZEX Calibration Laboratory operating in accordance with the PN-EN ISO/IEC 17025 standard (PCA accreditation no. AP150).

Block diagram of the system

Offered models

Model Gas sensor module Sensor Substance/property Standard alarm thresholds Measuring range UoM Supply voltage
MS-14.EG-EN Semiconductor Methane (CH4)
10/30/(40)
5—40
%LEL
24 V DC
MS-15.EG-EN Semiconductor Liquefied petroleum gas (LPG)
10/30/(40)
5—40
%LEL
24 V DC
MS-22.EG Semiconductor Carbon monoxide (CO)
30/60/150
20—1000
ppm
24 V DC
MS-61.EG Semiconductor R32
or R410A
1000/2000/(2500)
500—3000
ppm
24 V DC
MS-73.EG Semiconductor Hydrogen (H2)
10/20/30
5—40
%LEL
24 V DC
MS-9E5.EG Electrochemical Oxygen (O2)
19/18/17
2—25
%v/v
24 V DC
MS-20.EG Electrochemical Nitrogen dioxide (NO2)
Carbon monoxide (CO)
3/6/15
30/60/150
1—30
20—500
ppm
ppm
24 V DC
MS-8R8.EG Infra-red Carbon dioxide (CO2)
1000/1400/1800
500—5000
ppm
24 V DC
MS-28.EG Semiconductor Carbon monoxide (CO)
30/60/150
20—1000
ppm
24 V DC
Infra-red Carbon dioxide (CO2)
1000/1400/1800
500—5000
ppm
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.
MS-14.EG-EN Semiconductor Methane (CH4)
10/30/(40)
5—40
%LEL
24 V DC 82 x 95 x 68 mm PLN419.00 PLN515.37 S
MS-15.EG-EN Semiconductor Liquefied petroleum gas (LPG)
10/30/(40)
5—40
%LEL
24 V DC 82 x 95 x 68 mm PLN419.00 PLN515.37 S
MS-22.EG Semiconductor Carbon monoxide (CO)
30/60/150
20—1000
ppm
24 V DC 82 x 95 x 68 mm PLN419.00 PLN515.37 S
MS-61.EG Semiconductor R32
or R410A
1000/2000/(2500)
500—3000
ppm
24 V DC 82 x 95 x 68 mm PLN539.00 PLN662.97 N
MS-73.EG Semiconductor Hydrogen (H2)
10/20/30
5—40
%LEL
24 V DC 82 x 95 x 68 mm PLN539.00 PLN662.97 N
MS-9E5.EG Electrochemical Oxygen (O2)
19/18/17
2—25
%v/v
24 V DC PLN629.00 PLN773.67 N
MS-20.EG Electrochemical Nitrogen dioxide (NO2)
Carbon monoxide (CO)
3/6/15
30/60/150
1—30
20—500
ppm
ppm
24 V DC 95 x 160 x 68 mm PLN739.00 PLN908.97 N
MS-8R8.EG Infra-red Carbon dioxide (CO2)
1000/1400/1800
500—5000
ppm
24 V DC 82 x 95 x 68 mm PLN609.00 PLN749.07 N
MS-28.EG Semiconductor Carbon monoxide (CO)
30/60/150
20—1000
ppm
24 V DC 95 x 160 x 68 mm PLN689.00 PLN847.47 N
Infra-red Carbon dioxide (CO2)
1000/1400/1800
500—5000
ppm

Suggested products

Splash-proof enclosures to protect detectors from adverse weather conditions and mechanical damage
Profiled tube guards to protect the detector from direct mechanical damage
Test sets for verifying the correct operation of detectors by injecting a gaseous test mixture into the measuring chamber of the detector