6
FLA
VOR
INP
UT
1
2
WA
TER
INP
UT
REF
ILL
MA
IN
PO
WE
R
2
1
1
2
3
3
3
FLA
VO
R
OU
TPU
T
FLA
VO
R
OU
TPU
T
WA
TER
OU
TPU
T
FLA
VO
R
OU
TPU
T
WA
TER
OU
TPU
T
WA
TER
OU
TPU
T
Mix ratio (water/flavor)
Time for FLAVOR OUTPUT (1/2 cup)
Time for WATER OUTPUT (1 cup)
1+1
assume 20 sec. or obtain time per note below
40 sec. or 2 times flavor output time
2+1
assume 20 sec. or obtain time per note below
20 sec. or equal to flavor output time
3+1
assume 20 sec. or obtain time per note below
13.3 sec. or 0.67 times flavor output time
4+1(see below)
assume 20 sec. or obtain time per note below
10 sec. or 0.5 times flavor output time
5+1
assume 20 sec. or obtain time per note below
8 sec. or 0.4 times flavor output time
6+1
assume 20 sec. or obtain time per note below
6.7 sec. or 0.33 times flavor output time
MIX RATIO ADJUSTMENTS(cont.)
NOTE: For a typical adjustment, the time for flavor output in the center column above is assumed to be 20
seconds. A more specific flavor pump output time may be obtained prior to adjustment of the needle valve.
To do so, connect the flavor to be tested to the “FLAVOR INPUT”, and the test hose to the corresponding
“FLAVOR OUTPUT” (make no connection to the “WATER INPUT”). With a one-cup container under the
test hose press the corresponding “TEST OUTPUT” switch, and carefully measure and note the elapsed
time from when the product first flows from the test hose to when one-half cup of the product has been
dispensed. This value may then be used in the formula below. Following flavor pump output measurement,
disconnect the flavor line from the “FLAVOR INPUT” and purge remaining product from the line.
Formula for setting mix ratio: To obtain the time for dispensing 1 cup of water, divide the time it
takes to dispense one-half cup of product by the first number in the mix ratio and then multiply
the result by two.
Example: W=2(F/X) Where W is the time it should take to dispense one cup of water, it took F
seconds (20 here) to dispense 1/2 cup of flavor concentrate, we desire a mix ratio X of 4+1 (X
will be the first number in the mix ratio, 4).
Therefore:
W = 2/(20/4)
W
=
2/5
W = 10 seconds
So if it took 20 seconds to dispense one-half cup of flavor concentrate, and a mix ratio of 4 to 1
is required, the needle valve should be adjusted to dispense 1 cup of water in 10 seconds.
NOTE: Hoses and tubing should be primed and free of substantial air spaces and/or bubbles prior
to calibration.
P1521
NEEDLE VALVE
28791 040501
6. Compare results with chart or formula below.
7. If the time observed is too short or long, turn the needle valve clockwise or counterclockwise, respectively,
a little at a time. Repeat from the preceding step until correct.
