components. Sensirion sensors are reported to have a 15-year lifecycle. During that time, the sensor will not need to be recalibrated or rezoned. The SGD43S-M3-S5 and SGD43S-M3-S7 sensors are capable of producing dual contact relay output so they can trigger a signal to a control board. The board can then start a blower, switch off heat sources, and stop the flow of refrigerant within the system. Technicians can also use the LED on the sensor to quickly detect its status. Finally, the sensors meet current industry standards like UL 60355-2-40 and UL 60335-2- 89, so they are ready to use. The main difference between the SGD43S-M3-S5 and SGD43S-M3-S7 is the refrigerants they are calibrated
The Sensirion thermal conductivity CMOSens MEMS chip series, containing the SGD43S-M3-S5 and SGD43S-M3-S7, can detect A2L leaks and ensure the safety of HVAC systems. (Image: Sensirion AG, DigiKey.)
to detect. The S5 model is calibrated for R-454B and R-32, so it is already primed to work with the two leading A2L refrigerants in the HVAC industry. The S7 model, however, is calibrated to detect R-454A, R-454C, and R-455A and is thus more useful in refrigeration applications.
For more information on the SGD43S-M3-S5 and SGD43S- M3-S7 and how they can be integrated into HVAC and refrigeration systems, read this product page on DigiKey.com.
we get technical
15
Powered by FlippingBook