Veris Industries EP3331S2 Transducer

The Veris Industries EP3331S2 is a high-performance electropneumatic transducer designed for precise pneumatic valve control and damper actuation within building automation systems. Built with advanced microcontroller technology and low-power poppet valve architecture, this unit provides exceptional pressure regulation without the continuous air consumption found in traditional bleed-style transducers. The EP3331S2 is a highly versatile field solution, featuring jumper-selectable inputs for 4-20mA, 0-5V, and 0-10VDC, as well as support for Tri-State and PWM control signals. With a 0-25 psi control range and a dedicated pressure loss alarm, it ensures system integrity by providing an immediate contact closure if the desired branch pressure is not maintained. This model includes a protective EP cover plate and a 3-1/2 digit backlit LCD for real-time field monitoring and simplified commissioning during HVAC pneumatic system maintenance.

• Efficient Poppet Valve Technology: Eliminates continuous air loss, significantly reducing demand on the instrument air compressor.
• Field-Selectable Flexibility: Simplifies inventory by supporting multiple control input signals (Analog, Tri-State, PWM) on a single hardware platform.
• Reliable Monitoring: Features a backlit LCD for pressure indication and a pressure loss alarm to notify operators of system failures.
• Fail-Safe Operation: Designed to vent branch pressure on power failure, ensuring a known safe state for connected 4-20mA pneumatic actuators.
• Manual Override: Includes a "set and hold" manual mode, allowing technicians to test systems and troubleshoot leaky pneumatic lines without a master controller.

What is the maximum supply pressure for this transducer?
The EP3331S2 is rated for a maximum supply pressure of 45 psig. To ensure optimal performance, the supply pressure should be at least 0.1 psi higher than the intended full-scale branch pressure.

Does this unit require a specific tubing size?
Yes, the unit is equipped with hose barbs designed for 1/8" I.D. poly tubing. For stable operation, a minimum tubing length of 15 feet is recommended between the transducer and the controlled device.

Can I use this with oxygen-rich environments?
No. This device is designed strictly for use with clean, dry air or inert gases. It must not be used on oxygen service or in hazardous/classified locations.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.