Schneider Electric (Barber Colman) 2252-151 Transmitter

The Schneider Electric 2252-151 is a high-precision pneumatic temperature transmitter engineered for demanding HVACR control applications. This unit features a remote bulb sensor with a 36-inch capillary, making it ideal for duct mounting or outdoor air sensing where the controller must be isolated from the sensing point. With a temperature range of -25°F to 125°F and a 150°F span, it translates sensed temperatures into a linear 3 to 15 psig pneumatic signal. The 1/4" x 4" copper bulb ensures rapid thermal response, while the 241°F maximum temperature rating protecting the thermal element against system overshoots. Designed for seamless integration with Barber Colman pneumatic systems, this transmitter provides the reliable bridge needed between ambient thermal conditions and pneumatic automation systems. Its rugged construction ensures long-term calibration stability in commercial air handling units and specialized industrial cooling environments.

• Precise Signal Conversion: Delivers a consistent 3 to 15 psig output proportional to the 150-degree temperature span.
• Versatile Installation: Supports both outdoor air mounting and duct-side applications via the flexible 3-foot capillary.
• Durable Thermal Element: The 1/4" x 4" remote bulb is built to withstand temperatures up to 241°F without losing calibration.
• Legacy Compatibility: Direct replacement for older Barber Colman 2252 series components in existing pneumatic control loops.

What is the output signal range for the 2252-151?
This transmitter generates a standard 3 to 15 psig signal across its defined sensing span.

Can the capillary be cut to a shorter length?
No, the capillary is a sealed system containing a specific fluid charge; cutting it will render the transmitter inoperable.

Is this unit compatible with non-Schneider pneumatic controllers?
Yes, as long as the controller is calibrated for a 3-15 psi input and the application falls within the -25 to 125°F range.

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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.