MAMAC Systems PR-282-4-2-A-1-2-B Pressure Transducer 0-30 PSI 4-20mA 24VDC Output RA Mount

The MAMAC Systems PR-282-4-2-A-1-2-B. 0/30# Ra Xdcr; 4/20mA at 24Vdc It looks like the transmitter is a wet-to-wet differential pressure. They gauge the pressure differential between two points in a system, usually one that contains liquids or air. To ensure ideal airflow throughout the system, the transmitter can detect when a filter is clogged and has to be replaced by monitoring the pressure difference across the filter. Measurements of differential pressure can support the effective operation of the HVAC system by assisting in the maintenance of optimal pressure levels in certain zones or equipment. Various pieces of equipment can be controlled by the transmitter's output signal, which is typically 4–20 mA, using the observed pressure differential.