Household gas detectors DD/AP

Home detectors are designed for continuous monitoring of the presence of methane, propane-butane, carbon monoxide, carbon dioxide or Freons in enclosed spaces, supervised by the alarm system.

The control consists in cyclic measurement of the concentration of the corresponding gas in the surrounding air. When the specified concentration values are exceeded, the optical and acoustic alarm signaling of the detector is activated, the state of the contact output is changed (transmission of information to the alarm system).

The detectors are dedicated for use in burglar alarm systems as an additional gas sensor. The detectors have a replaceable sensor module, which improves maintenance and reduces operating costs.

Scope of application

  • in kitchens equipped with gas-fired instantaneous water heaters (with open combustion chamber), gas ovens;
  • in rooms with a fireplace or solid fuel stove;
  • in rooms heated with portable propane-butane-fired stoves;
  • in rooms where ventilation is to be controlled according to demand;
  • in oil or gas boiler rooms (with boilers without a flue gas discharge sensor);
  • in home garages (flue gas or LPG outflow control);
  • in rooms with air conditioners, refrigerated counters;
  • in rooms with refrigeration units, heat pumps;
  • in refrigerant stores;
  • in automotive and commercial vehicle cabins.

Features

  • gas sensor with long-term durability;
  • replaceable sensor;
  • built-in control microprocessor = reliability, stability of operation, thermal compensation circuit;
  • standard calibrated 3 alarm thresholds (A1/A2/A3);
  • recommended calibration every 3 years, exceeding the recommended period visually signaled;
  • ease of installation and wiring (removable, screw terminals);
  • very short time of gas penetration through the housing;
  • contact output assigned to A2 threshold (on request to A1 or A3 or Failure) of NO and NC type (low voltage, max 2A/30V=, bistable relay);
  • built-in optical and acoustic signaling (switchable), differentiated for each alarm threshold;
  • aesthetically pleasing housing - white (standard) or matte black - for wall mounting, with the possibility of inserting the cable from under the plaster or mounting to a typical Ø60mm flush-mounted installation box (with screws on the rim);
  • all detectors are calibrated in GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation no. AP150).

Offered models

Model Gas sensor module Sensor Substance/property Standard alarm thresholds or measuring range Supply voltage Net price C.g.
MS-DD-CO/AP Semiconductor Carbon monoxide (CO)
20/100/300
ppm
12/24VDC PLN149.00 C
MS-DD-FR/AP Semiconductor Hydrofluorocarbon (R410A)
or Hydrofluorocarbon (R32)
1000/2000/2500
ppm
12/24VDC PLN219.00 C
MS-DD-GZ/AP Semiconductor Methane (CH4)
10/20/30
%LEL
12/24VDC PLN149.00 C
MS-DD-MT/AP Semiconductor Methane (CH4)
10/20/30
%LEL
12/24VDC PLN149.00 C
MS-DD-PB/AP Semiconductor Liquefied petroleum gas (LPG)
10/20/30
%LEL
12/24VDC PLN149.00 C
MS-DD-8R/AP Infra-red Carbon dioxide (CO2)
800/1400/1800
ppm
12/24VDC PLN399.00 C
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.
MS-DD-CO/AP Semiconductor Carbon monoxide (CO)
20/100/300
ppm
12/24VDC 1 PLN149.00 C
MS-DD-FR/AP Semiconductor Hydrofluorocarbon (R410A)
or Hydrofluorocarbon (R32)
1000/2000/2500
ppm
12/24VDC 1 PLN219.00 C
MS-DD-GZ/AP Semiconductor Methane (CH4)
10/20/30
%LEL
12/24VDC 1 PLN149.00 C
MS-DD-MT/AP Semiconductor Methane (CH4)
10/20/30
%LEL
12/24VDC 1 PLN149.00 C
MS-DD-PB/AP Semiconductor Liquefied petroleum gas (LPG)
10/20/30
%LEL
12/24VDC 1 PLN149.00 C
MS-DD-8R/AP Infra-red Carbon dioxide (CO2)
800/1400/1800
ppm
12/24VDC 1 PLN399.00 C