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Danfoss DGS range of gas detectors providing an immediate response to the presence of a wide range of different refrigerants typically used in refrigeration and air conditioning systems, such as halogenated hydrocarbons: HFCs, HCFCs, CFCs, carbon dioxide (CO₂/R744), hydrocarbons (e.g. R290, R600a). Gas detectors are designed to help you comply with the environmental F-gas regulation and health and safety requirements for both new and existing systems, such as processing refrigeration plants, refrigerated storage, refrigerated warehousing, or other special applications or areas/zones.

Depending on the refrigerant detection technology, the following models are available:

  • DGS-IR - infrared technology
  • DGS-SC - semi-conductor technology
  • DGS-PE - pellistor technology

DGS gas detectors can be used in stand-alone or integrated systems with real-time, continuous automatic monitoring using the Danfoss ADAP-KOOL® refrigeration monitoring system or building management systems.

Characteristics of Danfoss DGS gas detectors:

  • power supply:
    • 24 V DC ± 20%; with polarity protection
    • 24 V AC - 10% / + 15%
  • power consumption (24 V DC):
    • maximum 250 mA (5 VA)
  • enclosure protection level: IP 65
  • humidity range: 15-90% relative humidity without condensation
  • mounting: wall-mounted
  • digital input:
    • alarm confirmation and alarm test: Non-potential-free contact
    • alarm relay/fault relay: 40 V AC/DC 0,5 A,; change-over contact (SPDT)
    • critical relay: normally closed (compliant with SIL II)
    • warning relay: normally open
  • analog output signal:
    • proportional, overload and short-circuit resistant, load ≤ 500 Ohms
    • measuring range: 0-10 V / 2-10 V / 0-20 mA / 4-20 mA

Danfoss DGS gas detector information




DGS-PE (Propan)

Temperature range

-35 – 50°C

-35 – 60°C

-30 – 60°C

Response time T90

<120 s

<40 s

<10 s

Time to full recovery

90 s

180 s

120 s

Maximum calibration range

60 months

12 months

6 months

Measuring range

0 – 20 000 ppm

0 – 2 000 ppm

0 – 5 000 ppm

Default alarm threshold value

5 000 ppm

500 ppm

800 ppm

Due to frequent changes and updates, presented data are provided on illustrative basis only. All materials contained on this website are protected by copyright and their use, copying and publishing in any form is prohibited without the written consent of Elektronika SA. Please read the full Terms of Use.

Sales of equipment

We are a direct importer, representative and authorized distributor of the world's leading refrigeration and air conditioning manufacturers. The main activity of the company is wholesale and distribution of HVACR equipment and accessories, including heat pumps and chillers, through its own network of branches.

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Technical support

We actively support our HVACR Installers and Designers. We organize product trainings; provide assistance and technical advice to refrigeration and air conditioning engineers at every stage of the investment realization. Hundreds of successful investments confirm our competence and extensive experience.

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Investment processes

Our organizational structures include Investment Implementation Departments, which, based on the skills of engineers and designers, in cooperation with installation companies from the investment area, are able to design and implement the most modern cooling, freezing and air conditioning units.

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