Schneider Electric (Barber Colman) 2252-610 Transmitter

The Schneider Electric 2252-610 is a precision pneumatic temperature transmitter engineered for high-accuracy sensing in commercial HVAC systems. This 2252-610 Barber Colman model features a rigid element measuring 1/4" x 7 1/16", optimized for duct or immersion mounting. It operates across a 40 to 240 degree temperature range with a fixed 200 degree span, converting thermal input into a proportional 3 to 15 psi pneumatic signal. Designed for durability in demanding environments, the thermal element can withstand a maximum temperature of 471°F. This unit is essential for proportional control of dampers and valves where reliable HVAC temperature sensing is required. The non-relay transmitter design ensures a direct response, making it a staple for technicians maintaining legacy or modern pneumatic infrastructures. Its construction facilitates straightforward integration into existing control loops, providing consistent performance without the complexities of electronic conversion.

Key Benefits for Technicians

• Versatile Application: Dual-purpose hardware supports both duct mount and immersion mount configurations for air or liquid sensing.
• High Thermal Limit: The 471°F maximum element temperature prevents damage during system upsets or high-heat cycles.
• Standard Signal Output: Integrates seamlessly with standard 3 to 15 psi receivers and controllers.
• Rigid Probe Design: The 7 1/16" copper sensing element ensures quick response times and accurate readings within the 200°F span.

Common Questions

Is the 2252-610 a direct or reverse acting transmitter?
The output of this pneumatic transmitter is proportional to the temperature sensed by the bulb; it is typically used in conjunction with a receiver-controller where action is determined.

Can I use this for chilled water and hot water applications?
Yes, the 40°F to 240°F range covers most HVAC hydronic requirements, provided you use the appropriate thermowell for immersion installs.

What is the maximum pressure for the sensing element?
While the pneumatic output is 3-15 psi, the rigid bulb is built for standard duct or pipe velocities; always use a well in high-pressure fluid applications.

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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.