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Calibration
Program Items
Flow Rates
Brew left
Water Valves
Flow Rates
Brew right
Water Valves
Flow Rates
Bypass left
Water Valves
Flow Rates
Bypass right
Water Valves
Flow Rates
For automatic hot
Faucet Valve
water faucet
Slow Flow
Fill Compensation
Compensation
Display
LLC
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
-Obtain the VOLUME DISPENSED of water only, by brewing a batch without coffee or filter paper.
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 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:
VOLUME DISPENSED
Divide the volume dispensed by the programmed volume and then multiply by the current setting
PROGRAMMED VALUE
-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)
to obtain decimal format 3 quarts delivered=96oz,
Example below shows shortpotting of 16oz over 0.08 gal. batch corrected by recalibration using the formula above
Obtain Volume Dispensed
Example:
A CBS-2242 delivered 3qts or 6oz
over the 0.8 gallon (102oz) setting
for Batch 2-Left Side
(96oz÷128=0.75)
The value is 0.75
By entering the new flow rate number into the brewer, the software automatically corrects the volume discrepancy
Go to fetco.com for the latest versions of all information
Factory set
Programming Range
Default
Brew Left
0.40
0.50gal/min
Brew Right
0.40
0.50gal/min
Bypass left
0.29
0.36gal/min
Bypass right
0.29
0.36gal/min
Faucet
500
1500 ml/min
Off
OFF
o .. 1.5x
o
2.5x
Display %
Contrast
10
Brightness %
20
Normal
NORMAL
o .. High
How to calibrate the flow rate
×CURRENT SETTING=NEW FLOW RATE SETTING
96oz÷128=0.75 gal
Obtain Programmed Value
Obtain Current Setting
The Programmed value
The valves flow rate is in the
for batch 2 -left side of
top right corner
the CBS-2242 is on the
Brew Left
home screen in the
0.40
batch box.
The value is 0.50
The value is 0.8 gallon
Page 10
0.50
(gal)
Use to attenuate and compensate for
gal/min
0.58
variations in brew valve output
--------------
0.50
(gal)
Use to attenuate and compensate for
gal/min
0.58
variations in brew valve output
--------------
0.36
(gal)
Use to attenuate and compensate for
gal/min
0.43
variations in bypass valve output
--------------
0.36
(gal)
Use to attenuate and compensate for
gal/min
0.43
variations in bypass valve output
--------------
1500
To compensate variations in timed
ml/min
5000
dispense from automatic hot water
faucet
----------------
Use for FloJet bottled water supply or
for reduced water supply from mains.
70
------------
100
70
------------
100
Liquid level control sensitivity.
Normal for most water.
High is for reverse osmosis water or
very pure water.
.
Use the formula above
0.75
× 0.50 = ����. ��������
0.8
0.50
(gal)
gal/min
0.58
--------------
The new flow rate is
0.47
Notes
Enter the New Flow Rate
Brew Left
0.47
(gal)
0.40
gal/min
0.58
--------------
Enter new setting on the slider
as shown and EXIT to save.
Retesting recommended
P216
February 2023
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