Dwyer Instruments A3002 Photohelic Pressure Switch/Gauge 0-2" WC

The Dwyer Instruments A3002-RMR is a versatile pressure switch developed for use in HVAC systems and other industrial applications. This crucial part serves as a multifunctional instrument that combines remote control and pressure monitoring features. The pressure switch component is where the main functionality is found. It has a diaphragm that responds in a closed-loop system to variations in air pressure or the pressure of a suitable gas. The diaphragm activates or deactivates an internal switch when the pressure falls to a user-defined set point between 0 and 2 inches of water column (w.c.). With this switching operation, you can remotely control different parts of the system. Nevertheless, the A3002-RMR incorporates a remote relay, in contrast to the A3000-00 Photohelic.