Flexible and complete A3 refrigerant leakage detection system
The SGD48S-M3-S8 is part of our SGD4x series of A2L and A3 refrigerant detection products, specifically designed for the HVAC industry as a complete refrigerant detection system (RDS). It is based on the photoacoustic NDIR measurement principle and features a dual contact relay output that can trigger a signal relay to start a blower, switch off the load or warn a control board. Easy integration and installer-friendly feedback is enabled by a status-indicating LED for quick visual feedback.
With its fast response time to R290, it is an essential component for residential and commercial HVAC systems and other applications. The SGD48S-M3-S8 ensures effective leak detection and complies with stringent industry standards, including EN IEC 60730-1, IEC 60335-1 and IEC 60335-2-40.
| Refrigerants | |||
|---|---|---|---|
| Monitored refrigerantsR290 | R290 | ||
| Connector8-pin sealable connector | 8-pin sealable connector | ||
| Response time20.0s | 20.0 | s | |
| Expected lifetime> 15years | > 15 | years | |
| IEC 60730-1, IEC 60335-1 and IEC 60335-2-40 |
| IP protectionIP54, if IP54 rated connector is used | IP54, if IP54 rated connector is used |
| Humidity | |||
|---|---|---|---|
| Operating relative humidity range0 - 100%RH | 0 - 100 | %RH |
| Generic | |||
|---|---|---|---|
| Supply voltage24V | 24 | V | |
| Operating temperature range [°C]-40 - 85°C | -40 - 85 | °C | |
| Operating temperature range [°F]-40 - 185°F | -40 - 185 | °F | |
| InterfacesModBus, RS485 | ModBus, RS485 | ||
| Size (LxWxH)90 x 55 x 24mm | 90 x 55 x 24 | mm | |
| Size (LxWxH) [inch]3.54 x 2.17 x 0.94inch | 3.54 x 2.17 x 0.94 | inch |

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.