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BARISTA INSTALLATION, USE & MAINTENANCE GUIDE
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19
• Press the start button to test the sample.
• Record the brix reading.
• Press the start button to test the sample again.
NOTE:
If the readings differ by more than .1, press the start button once more and test/
record the reading. Continue until two of the same readings are recorded. This reading
should be interpreted as the current brix for the faucet being tested.
PERISTALTIC PUMP PACKAGE GUIDE
To determine the best peristaltic pump package, follow the instructions below:
• Determine the water to product dilution ratio (concentration) of the Bag-in-Box product.
• Determine the Bag-in-Box product flow rate required.
– This is accomplished by dividing the nitro water flow rate by the dilution ratio.
– Example: for a 5:1 ratio, the necessary product flow rate is:
(1775
ML/MIN
/ 5) = 355
ML/MIN
– Choose a pump package that is close to but exceeds the calculated product flow rate.
NOTE:
See Peristaltic Pump Flow Rate chart below.
– In the case of a 5:1 ratio product, there are two ideal packages.
• 172
RPM
gearbox with a ¼" tube – 600
ML/MIN
• 282
RPM
gearbox with a 3/16" tube – 580
ML/MIN
– If there is more than one ideal pump package, choose one that requires less time/
labor for setup.
– Typically it is easier and less time consuming to change a tube than it is to change
a gearbox.
– Once the tube and gearbox package are selected, the supplied voltage to the peristaltic
pump and the still water flow control valve are used to dial in brix of finished product.
PERISTALTIC PUMP FLOW RATE CHART
NOTE:
Flow rates advertised in this chart are nominal and may vary.
NOTE:
Bag-in-Box product flow rates will likely be less than advertised in this chart.
RPM
1/8" I.D.
3/16" I.D.
1/4" I.D.
ML/MIN
ML/MIN
ML/MIN
ML/MIN
ML/MIN
ML/MIN
172
150
5.1
350
11.8
600
20.3
282
270
9.1
580
19.6
1000
33.8
