9P215 REV000 February 2023
How to calibrate the flow rate
Set the flow rates of the brewer valves to adjust for over or under potting.
Built-in algorithms in brewer controller software corrects brew parameter to customer preferences or to trim variations in flow control components
The control software uses the new flow rate entered in the CALIBRATION screen to adjust and correct the amount of water delivered by the valve
Increasing the flow rate value DECREASES the volume of brew water dispensed
Decreasing the flow rate value INCREASES the volume of brew water dispensed
Flow rate adjustment will control all batches made by the valve. All batches on the side of the valve will be adjusted, (left or right)
-Obtain the VOLUME DISPENSED of water only, by brewing a batch without coffee or filter paper.
-Obtain the PROGAMMED VALUE of the same brew. This is displayed on the home screen in the batch box
-Obtain the CURRENT SETTING for the flow rate from the brewer. Do this by entering PROGRAMMING and
Tap to “CALIBRATION” then, tap “Flow Rates” and then “Water Valves”. The valves flow rate is in the top right corner.
Using the values obtained above to obtain the new flow rate setting to correct the volume dispensed:
Divide the volume dispensed by the programmed volume and then multiply by the current setting
VOLUME DISPENSED
PROGRAMMED VALUE ×CURRENT SETTING
NEW FLOW RATE SETTING
-Enter programming mode, tap to “CALIBRATION”
-Tap back to “Flow Rates” and then to “Water Valves”
-Enter the new flow rate into the calibration slider for the valve tested
Note: values for brewers set in gallons are in decimal format. Place all quantities in ounces and divide by 128 (One gallon =128 ounces)
3 quarts delivered=96oz, 96oz÷128=0.75 gal.
Example below shows shortpotting of 16oz over 0.08 gal. batch corrected by recalibration using the formula above
Obtain Volume Dispensed
Example:
-223
2 delivered 3qts or 6oz
over the 0.8 gallon (102oz) setting
for Batch 2
-Left Side
The Programmed value
for batch 2 -left side of
the CBS-2232 is on the
home screen in the
batch box.
The value is 0.8 gallon
Obtain Current Setting
The valves flow rate is in the
top right corn
er
0.50 (gal)
0.40 gal/min 0.58
--------------
The value is 0.50
0.75
0.8 × 0.50 =.
0.47
0.47 (gal)
0.40 gal/min 0.58
--------------
Enter new setting on the slider
as shown and EXIT to save.
Retesting recommended
By entering the new flow rate number into the brewer, the software automatically corrects the volume discrepancy
Calibration
Program Items
Programming Range Notes
Flow Rates
Water Valves Brew left 1800 ml/min
(ml)
1450 ml/min 2100
-------------------------
Scroll and go to EXIT&SAVE
Use to attenuate and compensate for
variations in brew valve output
Flow Rates
Water Valves Brew right 1800 ml/min
(ml)
1450 ml/min 2100
-------------------------
Scroll and go to EXIT&SAVE
Use to attenuate and compensate for
variations in brew valve output
Flow Rates
Water Valves Bypass left 1350 ml/min
(ml)
1050ml/min 1600
----------------------
Scroll and go to EXIT&SAVE
Use to attenuate and compensate for
variations in bypass valve output
Flow Rates
Water Valves Bypass right 1350 ml/min
(ml)
1050ml/min 1600
----------------------
Scroll and go to EXIT&SAVE
Use to attenuate and compensate for
variations in bypass valve output
Flow Rates
Faucet Valve
For automatic hot
water faucet 1500 ml/min
500 ml/min 5000
----------------
Scroll and go to EXIT&SAVE
To compensate variations in timed
dispense from automatic hot water
faucet
Fill Compensation Slow Flow
Compensation OFF
o .. 1.5x
o 2.5x
Scroll and go to EXIT&SAVE
Use for FloJet bottled water supply or
for reduced water supply from mains.
Display
Contrast 70
10 ------------ 100
Brightness % 70
LLC NORMAL
Normal
o .. High
Scroll and go to EXIT&SAVE
Liquid level control sensitivity.
Normal for most water.
High is for reverse osmosis water or
