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Challenge Row PID Loop Temperature Control Screen

 

 

This screen allows the operator to choose a setpoint, choose manual or PID control, change PID tuning parameters, force the output to a particular value, etc.

Temperature is controlled by a mixing valve assembly that mixes a warm and cold stream to arrive at the desired temperature. The Opto22 controller sends a 4-20 mA control signal to the valve assembly, which converts this to % open and closed for the two metering valves that are contained within.

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