DavidH/Greg

The calibration factors for the TCSX and TCSY paddlewheel flow sensors were adjusted so that their digital displays matched the measured flow rates for the in-line flow meters. Each chiller operated at ~60psi, while a flow rate of ~3.5GPM was displayed.

Initially a K-factor value of 335.000 was used, given the molded Tee fitting that houses the sensor. This resulted in the digital display to read high.
 
The flow sensor settings can be changed by using the menu function on the sensor itself. The following settings are now being used, and are the same both TCSX AND TCSY.

Model 2537 4 to 20mA Output
Flow Unit = Gallons per min (G/m)
K-Factor (PULSES per VOLUME UNIT) = 385.000
Average = 0 seconds(Default factory setting)
Sensitivity = 0 (Default factory setting)
4 Set (Set flow RATE to be represented by 4 mA) = 0.0000
20 Set (Set flow RATE to be represented by 20 mA) = 10.000
Contrast (Adjust visibility of liquid crystal display) = 3

Sample displays for the paddlewheel sensor/inline flow meter after this adjustment to the K-factor are attached.