Flow Meter - Graco Reactor 2 H-30 Repair Parts

Troubleshooting

Flow Meter

Meter
Flow Flow Meter
Before performing any troubleshooting procedures:
Problem Problem Problem
The material ratio is significantly
offset from 1 : 1.
The ADM displays low inlet
pressure alarms, but the inlet
pressure reading appears correct.
The material flow and ratio are not
displayed on the ADM.
The flow meter repeatedly disables
itself.
46
1. Relieve pressure.
2. Turn the main power switch OFF.
3. Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs.
Cause Cause Cause
The k-factor entered in the ADM is
incorrect.
Cavitation is reducing the pump
performance.
Air is trapped in the system,
between the feed pumps and the
heated hose.
While spraying, the inlet pressure
drops below 30 psi.
The flow meter is disabled.
The inlet sensors are disabled.
See Pressure Relief Procedure, page
Update the k-factor. See
Replace Flow Meter, page 59
Increase the feed pump pressure.
Install a larger feed pump.
Clean the y-strainer filter.
Install a smaller mix chamber in
the spray gun.
Condition the material in the drums
to the ambient temperature of the
proportioner.
Re-route the feed hoses to a lower
height.
Purge air from the system. Refer
to your ratio monitor manual for
instructions.
Place the heated hose on flat
ground. Spray material into a
waste container until all air has left
the system.
Increase the feed pump pressure.
Install a larger feed pump.
Install a smaller mix chamber in
the spray gun.
Enable the flow meter on System
Screen 1.
Enable the inlet sensors. Inlet
sensors must be enabled for the
flow meter to function.
47.
Solution Solution Solution
334946H