<p>The SGD43S-M3-S7 is part of our SGD4x series of A2L refrigerant detection products, specifically designed for the HVACR industry as a complete refrigerant detection system (RDS). It is based on the thermal conductivity measurement principle and features a dual dry-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. </p><p> </p><p>With its fast response time and broad compatibility with A2L refrigerants thanks to its versatile multi-refrigerant calibration, it is an essential component for both residential and commercial HVACR systems. The SGD43S-M3-S7 ensures effective leak detection and complies with stringent industry standards, including UL60355-2-40. The single unit is triple calibrated for R-454A, R-454C and R-455A in refrigeration applications.</p>
Refrigerants | |||
---|---|---|---|
Monitored refrigerants
R-454A, R-454C, R-455A (triple calibration)
| R-454A, R-454C, R-455A (triple calibration) | ||
Connector
8-pin sealable connector
| 8-pin sealable connector | ||
Accuracy at ambient conditions
±2.5
| ±2.5 | %LFL | |
Response time
30.0
| 30.0 | s | |
Expected lifetime
> 15
| > 15 | years | |
Norm compliance
UL 60335-2-40 (4th editions)
| UL 60335-2-40 (4th editions) | ||
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 | |
Interfaces
ModBus, RS485
| ModBus,RS485 | ||
Size (LxWxH)
90 x 55 x 24
| 90 x 55 x 24 | mm³ | |
Size (LxWxH) [inch]
3.54 x 2.17 x 0.94
| 3.54 x 2.17 x 0.94 | inch |
Temperature | |||
---|---|---|---|
Operating temperature range [°C]
-40 - 85
| -40 - 85 | °C | |
Operating temperature range [°F]
-40 - 185
| -40 - 185 | °F |
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.