User's Manual

8 308968
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually relieved to
prevent the system from starting or spraying acci-
dentally. Fluid under high pressure can be injected
through the skin and cause serious injury. To
reduce the risk of an injury from injection, splashing
fluid, or moving parts, follow the Pressure Relief
Procedure whenever you:
D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment.
1. Turn off the fluid supply to the meter.
2. Shut off all electrical power to the fluid system.
3. Follow the Pressure Relief Procedure for your fluid
system dispensing device.
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
WARNING
COMPONENT RUPTURE HAZARD
Do not exceed the maximum working pressure of
your meter or any component or accessory in your
system.
D See the Technical Data for fluid and ambient
temperature limits.
D Only use the flow meter with fluids that are compat-
ible with the Wetted Parts listed in the Technical
Data.
Flow Volume Range
See TECHNICAL DATA on page15 for flow volume
range.
CAUTION
The flow meter gears and bearings can be damaged
if they rotate at too high a speed. To avoid high
speed rotation, open the fluid valve gradually. Do not
over-speed the gear with air or solvent. To prolong
meter life, Do not use the meter above its maximum
flow rate.
Flow Meter Verification
The factory calibration factor (k factor) for the flow
meter is stamped on an identification plate located on
the flow meter. This calibration factor is the number of
flow meter pulses per liter, as determined by a mea-
surement with oil.
Most sealant and adhesive materials are compressible
and, since the flow meter is measuring the material
under high pressure, the actual volume of material
may vary slightly from the measured volume due to
this compressibility.
To adjust the flow meter k factor to reflect the uncom-
pressed volume dispensed more accurately, perform
the following steps:
1. Obtain a beaker, 500 cc or larger, and measure
the mass of the empty beaker.
2. Manually dispense material into the beaker.
3. Record both the volume displayed and the current
flow meter k factor.
4. Measure the mass of the full beaker.
5. Calculate the actual volume dispensed:
fluid mass (g) = volume (cc)
density
(g/cc)
6. Calculate the new flow meter k factor:
k factor = displayed volume (cc) X k factor (old)
measured
volume
(cc)