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Danfoss Leak Detector – DGS Refrigerant Gas Detection Series
The Danfoss DGS Leak Detector is designed for continuous, real-time monitoring of refrigerant gases in commercial and industrial refrigeration applications.
Different DGS sensor configurations are available for HFC/HFO refrigerants and CO₂ (R744), allowing the correct sensing technology and enclosure to be selected according to the refrigeration system and installation environment.
DGS Series Refrigerant Leak Detection HFC / HFO CO₂ / R744 IP41 / IP66 Modbus🛡️ Refrigerant Leak Detection for Multiple Refrigerants
The Danfoss DGS range is not limited to CO₂. It provides gas detection solutions for a wide selection of refrigerants used throughout commercial and industrial refrigeration systems.
DGS sensors continuously monitor refrigerant concentration in the surrounding environment and can provide alarm and control signals when the detected concentration reaches the configured threshold.
The correct DGS detector should be selected according to the refrigerant, sensor technology, environmental conditions and installation requirements.
🔍 DGS Sensor Technologies
DGS-SC
Semiconductor SensorDesigned for detection of various fluorinated refrigerants. Different code numbers are calibrated for different refrigerants or refrigerant groups.
Examples:R404A • R507 • R134a • R407A • R407F • R410A • R448A • R449A • R1234ze • R422D
DGS-IR CO₂
Infrared SensorDesigned specifically for detection of carbon dioxide / R744 used as a natural refrigerant.
Refrigerant:CO₂ / R744
📋 DGS IP41 Enclosure Models
IP41 versions from this DGS generation are intended for installation environments within the applicable temperature and enclosure requirements.
| Refrigerant | DGS Type | Code No. | Enclosure | Temperature |
|---|---|---|---|---|
| R404A / R507 | DGS-SC | 080Z2998 | IP41 | −20°C to +50°C |
| R134a | DGS-SC | 080Z2942 | IP41 | −20°C to +50°C |
| R407A | DGS-SC | 080Z2943 | IP41 | −20°C to +50°C |
| R407F | DGS-SC | 080Z2956 | IP41 | −20°C to +50°C |
| R410A | DGS-SC | 080Z2988 | IP41 | −20°C to +50°C |
| R448A | DGS-SC | 080Z2945 | IP41 | −20°C to +50°C |
| R449A | DGS-SC | 080Z2947 | IP41 | −20°C to +50°C |
| R1234ze | DGS-SC | 080Z2985 | IP41 | −20°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ | 080Z2995 | IP41 | −20°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ Failsafe | 080Z2994 | IP41 | −20°C to +50°C |
💧 DGS IP66 Enclosure Models
IP66 versions provide a higher enclosure protection level and the catalogue specifies operation down to −40°C for this generation.
| Refrigerant | DGS Type | Code No. | Enclosure | Temperature |
|---|---|---|---|---|
| R404A / R507 | DGS-SC | 080Z2999 | IP66 | −40°C to +50°C |
| R134a | DGS-SC | 080Z2989 | IP66 | −40°C to +50°C |
| R407A | DGS-SC | 080Z2944 | IP66 | −40°C to +50°C |
| R407F | DGS-SC | 080Z2957 | IP66 | −40°C to +50°C |
| R410A | DGS-SC | 080Z2987 | IP66 | −40°C to +50°C |
| R422D | DGS-SC | 080Z2949 | IP66 | −40°C to +50°C |
| R448A | DGS-SC | 080Z2946 | IP66 | −40°C to +50°C |
| R449A | DGS-SC | 080Z2948 | IP66 | −40°C to +50°C |
| R1234ze | DGS-SC | 080Z2986 | IP66 | −40°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ | 080Z2996 | IP66 | −40°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ Failsafe | 080Z2993 | IP66 | −40°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ Remote Sensor | 080Z2997 | IP66 | −40°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ Remote Sensor / Failsafe | 080Z2992 | IP66 | −40°C to +50°C |
| CO₂ / R744 | DGS-IR CO₂ Duct Mounted Sensor | 080Z2958 | IP66 | −40°C to +50°C |
⚖️ IP41 vs IP66 – What's the Difference?
IP41 Version
Typical catalogue temperature: −20°C to +50°CSuitable where the installation environment does not require the higher ingress protection of the IP66 enclosure.
IP66 Version
Typical catalogue temperature: −40°C to +50°CHigher enclosure protection makes this version suitable for more demanding refrigeration environments, subject to the installation requirements.
⭐ Key Features & Benefits
🔄 Continuous Monitoring
Automatic real-time refrigerant gas monitoring for refrigeration applications.❄️ Multiple Refrigerants
DGS configurations are available for numerous HFC/HFO refrigerants as well as CO₂ / R744.📡 Modbus Communication
Can communicate with compatible refrigeration control and monitoring systems using Modbus.📊 Analogue Output
Provides analogue output capability for integration with compatible control systems.🚨 Alarm Function
Designed to provide alarm indication when detected gas concentration reaches the configured limit.🏢 Flexible Integration
Suitable for stand-alone operation or integration with refrigeration monitoring and Building Management Systems.🏭 Typical Applications
🛒 Supermarkets
Refrigerant leak monitoring for supermarket refrigeration systems and machinery areas.❄️ Cold Rooms
Gas monitoring for commercial and industrial cold-storage applications.📦 Refrigerated Warehouses
Continuous refrigerant monitoring for refrigerated storage facilities.🏭 Process Refrigeration
Suitable for compatible process and industrial refrigeration installations.⚙️ Equipment Areas
Point detection can be positioned near equipment where a refrigerant leak is considered more likely.🏢 Commercial Refrigeration
Suitable for various commercial refrigeration applications using compatible refrigerants.🎯 How to Select the Correct DGS Leak Detector
1️⃣ Identify Refrigerant
First determine the refrigerant used by the refrigeration system.2️⃣ Select Sensor Type
Choose the appropriate DGS sensor technology for the target refrigerant.3️⃣ Choose IP Rating
Select IP41 or IP66 according to the environmental and installation requirements.4️⃣ Check Temperature
Verify that the detector's operating-temperature range is suitable for the installation area.5️⃣ Installation Type
For applicable CO₂ systems, standard, remote-sensor and duct-mounted configurations are available.6️⃣ Confirm Code Number
For replacements, provide the complete existing Danfoss code number before ordering.Gas-detector selection and positioning depend on refrigerant type, refrigerant density, room layout, ventilation and applicable safety requirements. Always follow the latest Danfoss installation instructions and applicable local regulations.
Danfoss Leak Detector Supplier Malaysia
RNA Engineering & Trading Sdn Bhd supplies Danfoss DGS refrigerant leak detectors, refrigeration controls, sensors and HVACR spare parts for commercial refrigeration, cold rooms and industrial refrigeration systems.
Contact us for pricing, availability and technical enquiries.
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