Schneider Electric (Barber Colman) 2323-505 Pressure Transmitter

The Schneider Electric 2323-505 is a high-precision differential pressure transmitter designed for monitoring and controlling low-static or differential pressures in commercial HVAC systems. Operating within a narrow range of -0.05 to +0.20 inches Water Column (W.C.), this pneumatic pressure sensor is essential for sensitive applications such as cleanroom monitoring, hospital isolation zones, and precise VAV box control. It features a low 29 scim air consumption rate, ensuring it operates efficiently within existing pneumatic control loops without taxing the air compressor. Installation requires specific attention to the pneumatic tubing connections: while standard nipples accommodate 1/4" O.D. tubing, the LO and HI pressure ports specifically require 3/8" O.D. tubing to ensure accurate signal transmission and minimize pressure drop. This Barber Colman crossover part provides reliable mechanical stability and static pressure sensing for technicians maintaining legacy or modern pneumatic infrastructure.

• Precise Low-Range Sensing: Specifically calibrated for -0.05 to +0.20" W.C., ideal for maintaining building static pressure and laboratory safety standards.
• Minimal System Load: Low air consumption of 29 scim allows for multiple transmitters on a single pneumatic branch without degrading signal integrity.
• Reliable Analog Output: Provides a stable 3 to 15 psi signal proportional to the sensed pressure for seamless integration with pneumatic controllers.
• Durable Construction: Built to withstand the fluctuating temperatures and vibrations common in mechanical equipment rooms.
• Versatile Mounting: Designed for straightforward vertical mounting to ensure the internal diaphragm remains calibrated to factory specifications.

What tubing is required for the 2323-505 pressure ports?
While most connections use 1/4" O.D. tubing, the HI and LO ports on this specific transmitter require 3/8" O.D. tubing for proper seating and signal accuracy.

Can this transmitter be used for both static and differential pressure?
Yes, by piping to both the HI and LO ports, it measures differential pressure; by venting one port to the atmosphere, it functions as a static pressure transmitter.

How do I verify the output signal during commissioning?
Use a calibrated pneumatic test kit at the output nipple to verify that the psi signal matches the pressure range scale, typically calibrated for a standard 3-15 psi output.

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.