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33 <br />Field Calibration of the Concentrate Pumps / Dispenser Flow Rates <br />The factory set Default Values for the Pump & Dispenser Flow Rates are very accurate and typically do not <br />need to be field calibrated. However, if the mix ratio accuracy is ever in question, this procedure can be used to <br />recalibrate the unit in the field. <br />Equipment Required: <br /> 50 to 100 ml graduated cylinder, with 1 ml graduations. <br /> 64 Oz (2000 ml) graduated container. <br />Remove the lower splash guard assembly to access prior to starting this procedure <br />NOTE: You can calibrate either the Concentrate Pump or the Dispenser Flow Rate independently. Simply scroll <br />through the menu screen to the desired section and perform only those steps. <br />Calibrating the Left Side Dispenser <br />Concentrate Pump Calibration <br />1. Select PRIME on the Function Selector Switch. (refer to Priming the Concentrate Lines). <br />2. Place a container under the Left Dispense Tip and prime the concentrate lines until a steady stream of <br />concentrate comes out the tip (approximately 10 seconds). <br />3. Stop the Priming and allow the tip to stop dripping. Discard the concentrate collected. <br />4. Select NORMAL on the Function Selector Switch. <br />5. Locate the programming module and use the Arrow Down key to scroll through LCD screens until CAL <br />LEFT SIDE appears and press the YES button. <br />6. The CAL LEFT PUMP menu screen will be displayed. Place a 50 ml graduated cylinder under Left Dispense <br />Tip and activate the Left dispenser momentarily. The dispenser will run the Left Concentrate Pump for 20 <br />seconds and then shut OFF automatically. <br />7. Keep the graduated cylinder under dispense tip until all the concentrate has dripped out. <br />8. Measure the volume of concentrate collected in the graduated cylinder. <br />Acceptable ranges for the volume collected <br />Tubing Size Volume Collected <br />3/16” tubing 40 - 47 ml. <br /> 1/8” tubing 16 - 22 ml <br />9. If the amount collected is not within the acceptable range, empty the graduated cylinder and repeat STEPS <br />6 – 8. <br />10. If the amount collected is still not within range, replace the pump tubing with a new Tube Kit, (refer to <br />the Tube Replacement Instructions). <br />11. When satisfied with the volume of concentrate collected, press the Down Arrow Key <br />12. The CAL LF PUMP VOL menu screen will be displayed. Use the (-) / (+) keys to adjust number displayed <br />to the amount measured in STEP 8. <br />(Continued Next Page) <br />36026.1 010313 <br />RELEASED FOR PRODUCTION <br />DIR Num: 36026.0001 19, May 2015