EPC2G | Analog Input to Pressure Output Interface Module | ACI

EPC2G | Analog Input to Pressure Output Interface Module

Description

Analog to Pneumatic Output The EPC Series are electric to pneumatic transducers which convert an analog input signal to a proportional pneumatic output, modulating its control valve(s) to regulate the branch line pressure to the set point determined by the input signal. The EPC series oers four selectable input ranges. Output pressure ranges are jumper shunt selectable and adjustable in all ranges. A feedback signal indicating the resultant branch line pressure is also provided. EPC Series is designed with electrical terminals on one end and pneumatic connections on the other, allowing for maximum convenience in wiring and tubing installation when panel mounted. The EPC is a constant bleed interface with branch exhaust response time determined by the bleed orice size and pressure dierentials. If power fails to the EPC, it will continue to bleed through the bleed orice until branch pressure is zero psig. The EPC2 incorporates two valves (one controls exhaust), does not bleed air at set point, and has a 750 scim supply and exhaust. Its branch exhaust ow and response time are not limited by an internal restrictor and are similar to its load rate. EPC2LG operates as the EPC2, but has a higher air ow rate (1400 scim) using an external 5 micron lter, and includes a 0-30 psi gauge. If power fails to the EPC2 or EPC2LG, branch line pressure remains constant if the branch line does not leak air. The EPC2FS shares the same specications as the EPC2 except its 3-way branch valve will exhaust branch line air upon power failure. Custom calibration is available upon request for an additional charge. This will speed up installation time for the end user.

Applications

• 3 Way Mixing Valve Control, Chiller Loading
• Pilot Positioner Control, Pneumatic Valve & Damper Actuator Control
• Fan Vane Control
• DDC Control
• Above Ceiling Applications (Mixing & VAV Boxes)