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 refrigerants R290 | R290 | ||
| Connector 8-pin sealable connector | 8-pin sealable connector | ||
| Response time 20.0 | 20.0 | s | |
| Expected lifetime > 15 | > 15 | years | |
| Norm compliance IEC 60730-1, IEC 60335-1 and IEC 60335-2-40 | IEC 60730-1, IEC 60335-1 and IEC 60335-2-40 |
| IP protection IP54, if IP54 rated connector is used | IP54, if IP54 rated connector is used |
| Humidity | |||
|---|---|---|---|
| Operating relative humidity range 0 - 100 | 0 - 100 | %RH |
| Generic | |||
|---|---|---|---|
| Supply voltage 24 | 24 | V | |
| Operating temperature range [°C] -40 - 85 | -40 - 85 | °C | |
| Operating temperature range [°F] -40 - 185 | -40 - 185 | °F | |
| Interfaces ModBus, RS485 | ModBus, RS485 | ||
| Size (LxWxH) 90 x 55 x 24 | 90 x 55 x 24 | mm | |
| Size (LxWxH) [inch] 3.54 x 2.17 x 0.94 | 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.