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1.
Start with both the recirc valve and the waste valves fully open (turn the valve all the way in a counter-clockwise
direction).
2.
Start the RO.
3.
When the pump turns on, slowly close the waste and recirc valves clockwise.
4.
Try to close the waste valve until the flow rates to product and to drain are approximately even, then begin to
close the recirc valve, to bring the membrane feed pressure within the range of 80–120 psi.
5.
Set the K-Factor for both FM1 and FM2 at the values listed in Table 1. See
10.
6.
On the GBE RO controller, select 3)INFORMATION and observe the FFLOW and PFLOW rates.
7.
Using a stopwatch and a bucket, measure and record the time elapsed (in seconds) to fill a one-gallon bucket
with product water.
8.
Meaure and record the time elapsed (in seconds) to fill a one-gallon bucket with waste water.
NOTE
Convert your stopwatch readings to minutes (for gallons per minute) by dividing the number of sec-
onds by 60. For example, if you measure 45 seconds to fill a 1-gallon bucket, the fill time is 45/60 = 0.75
minutes, and the flow rate is 1/0.75 = 1.33 gpm.
Model
FM1 Initial Nozzle Needed/K Factor
2S
3S
4S
2L
3L
4L
1F
2F
9.
Calculate the values for "A" and "B" using the following equations:
Where
FM1 INITIAL is from
Table 1
FFLOW DISPLAYED is displayed on the GBE RO controller
FFLOW ACTUAL = (Actual Product Flow) + (Actual Waste), in gallons per minute
Where
FM2 INITIAL is from
Table 1
PFLOW DISPLAYED is displayed on the GBE RO controller
PFLOW ACTUAL = (Actual Product), in gallons per minute
10. Use the directions in the next section to change the K factor for FM1 to the value for A, and then change the K
factor for FM2 to the value calculated for B.
11. Verify that the displayed values of FFLOW and PFLOW in the information screen on the GBE RO controller
match the actual measured flow rates from steps 7 and 8 while the RO is running.
Cat. No. 01021713
Feed Flow Meter
500
500
500
80
80
80
80
80
Table 1. K factor for FM1 and FM2.
A
=
B
=
"G1 Tubing Configuration" on page
Product Flow Meter
FM2 Initial Nozzle Needed/K Factor
(FM1 INITIAL) x (FFLOW DISPLAYED)
FFLOW ACTUAL
(FM2 INITIAL) x (PFLOW DIS-
PLAYED)
PFLOW ACTUAL
500
500
500
500
500
500
80
80
First Time Setup
23
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