Johnson Controls C-2040-1 Averaging Cumulator

The Johnson Controls C-2040-1 is a high-performance averaging cumulator specifically designed for pneumatic control systems requiring a low-volume output based on multiple signal inputs. Engineered for inline mounting, this 0-20 Psig input pressure device calculations the average value from two, three, or four separate controllers or transmitters. By utilizing an internal .007-inch restrictor and a balanced exhaust port mechanism, the C-2040-1 ensures that the signal sent to your receiver-controller or terminal equipment is a precise representation of the multi-zone or multi-sensor status. With its 5/32" barbed fittings and ±.6 Psi accuracy at a 10 Psi pilot differential, it remains a reliable solution for complex sequencing and signal averaging in legacy and modern pneumatic plants.

• Multi-Signal Processing: Effectively integrates inputs from up to four sources to streamline control device operations.
• Precision Performance: Maintains a ±.6 Psi accuracy level, ensuring tight control loops and minimizing signal drift.
• Versatile Installation: The compact design and integral mounting bracket allow for secure placement in any orientation.
• Zero Calibration: Simple mechanical design eliminates the need for field adjustments or ongoing maintenance calibrations.
• Industrial Durability: Rated for a maximum 25 Psig supply pressure, providing a robust buffer for standard pneumatic mains.

How do I handle unused pilot connections?
Any ports not connected to a transmitter or controller must be sealed with the provided caps to ensure the cumulator accurately calculates the average of the active signals.

Can the exhaust port be piped to a remote location?
The exhaust port must remain unplugged and unobstructed. Restricting the exhaust will prevent the unit from venting properly, leading to overpressurization of the output chamber and inaccurate readings.

What happens if a signal input fails?
Since the unit produces a mathematical average, a significant drop in one pilot signal will reflect in the total output. Constant monitoring of your pneumatic control signals is recommended for system-wide stability.

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.