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Pump Test
20 309535L
Pump Test
Follow this procedure the first time system is operated
(after flushing and priming) and whenever you need to
check whether pumps are on ratio.
The following table shows the volume dispensed during
the pump test, based on pump ratio. Dispense into a
container with adequate graduations.
Pump Volume Dispensed
45:1 750 cc
56:1 660 cc
68:1 540 cc
80:1 435 cc
For accurate ratios, pump lowers must be same
size on both sides.
1. Turn knob to pump test . Turn off air regulator.
Open main air shutoff valve. Adjust air pressure to
50 psi (0.35 MPa, 3.5 bar).
2. Dispense fluid A:
a. Close fluid shutoff valves and sampling valves A
and B.
b. Place a clean 1 quart (1000 cc) container under
sampling valve A.
I
O
PSI
Bar
MPa
PSI
Bar
MPa
BA
B
A
0
Close
A
Close
b.
a. a.
c. Press Start . Pump A light comes on.
d. Slowly open and adjust sampling valve A to
achieve desired flow. The pump stops automati-
cally when dispense is complete. Pump A light
turns off, Pump B light comes on.
3. Close sampling valve A.
4. Dispense fluid B as follows:
a. Place a clean 1 quart (1000 cc) container under
sampling valve B.
b. Slowly open and adjust sampling valve B to
achieve desired flow. The pump stops automati-
cally when dispense is complete. Pump B light
turns off.
I
O
PSI
Bar
MPa
B
A
c.
Open
A
d.
Close
A
B
A
B
a.
Open
b.