User's Manual
Operation
WARNING
Pressure
Relief Procedure
T
o reduce the risk of serious injury
, including
splashing in the eyes or on the skin, or injury from
moving parts, fire, explosion, or electric shock,
always follow this procedure when shutting of
f the
system, when checking or servicing any part of the
spray system, and whenever you stop operation.
1. T
urn of
f the fluid supply to the meter
.
2.
Shut of
f all electrical power to the fluid system.
3.
Follow the Pressure Relief Procedure for your
fluid system dispensing device.
WARNING
T
o reduce the risk of component rupture, which
could cause serious injury
, including fluid injection,
never pressurize the flow meter without the elec
-
tronic sensor device installed.
Do not exceed the maximum working pressure of
your meter or any component or accessory in your
system.
Flow Meter Function
This
is a positive displacement, gear flow meter
. The
gear flow meter is highly accurate, even with low flow
rates. The fluid flowing through the meter rotates the
gears. The gear tooth is picked up by a sensor device,
which produces an impulse for every gear tooth pass
-
ing by
.
Recommended Usage
See
the
T
echnical Data
for fluid and ambient tem
-
perature limits.
Only use the flow meter with fluids that are compat
-
ible with the “W
etted Parts” listed in the
Technical
Data.
Do not allow the fluid to set in the flow meter
.
Before shutting down the system, flush the meter
as instructed in
Maintenance.
Flow
V
olume Range
CAUTION
The
flow meter gear can be damaged if it rotates at
too high a speed. T
o avoid high speed rotation,
open the fluid valve gradually
. Do not over-speed
the gear with air or solvent. T
o prolong meter life,
Do not use the meter above its maximum flow rate.
METER MODEL NO. FLOW RANGE
gal/min (cc/min)
PPM
3050 & 3050H
0.01–0.5 (38–1900)
PPM 3100 & 3100H
0.02–1.0 (75–3800)
PPM 3550 & 3550H
0.1–5.5 (380–21,000)
Checking the Meter Accuracy
1. To
check the accuracy of the meter
, turn your gun
fan and atomizing air of
f, then trigger the fluid into
a graduated cylinder; dispense at least 500 cc of
fluid.
2.
Measure the volume of fluid in the beaker in cubic-
centimeters (cc) and read the volume on the flow
meter monitor.
If the flow meter accuracy is outside of your
acceptable limit, clean the meter as instructed in
Maintenance
. If the problem continues, return the
meter to Graco for re-calibration or parts replace
-
ment.
PROBLEM: No Flow Volume Display
If
there is no flow volume displayed at your monitor
,
check the following:
CAUSE SOLUTION
1. Flow
volume is too low to
be
measured
2.
Fluid is not flowing
3.
Poor cable connection
4.
Damaged cable.
5.
Damaged sensor unit.
1.
Increase flow volume.
2. Check for clogs in fluid
line
or in the meter itself.
3. Check connection to
ensure
it is tight and free
of
contaminates.
4.
Replace cable.
5. Replace sensor.*
*
Do not service the electronic sensor
. If the sensor is not
operating properly
, you must return it to Graco for service.
NOTE:
See the PPD 200 instruction manual 308–242 for
detailed information on the remote monitor
.