Graco Matrix D Series Instruction Manual page 18

Troubleshooting
Problem
Meter has been in
service for an
extended period of
time and begins to
work erratically
such as loss of
Work Orders or
Security settings.
Meter leaks.
Meter cuts on and
off during preset
dispense.
Meter displays
"active trig"
* To use the Matrix Emergency Mode contact the Matrix System Administrator in your facility.
18
Cause
E-Prom on meter board has reached
the end of its life.
Extension may be loose from meter
fluid housing.
Swivel connection at hose may be
leaking.
The trigger is being held during pre-
set dispense.
Trigger or trigger membrane switch is
damaged - flow bars DO show on the
meter display when the trigger IS
NOT actuated.
Trigger or trigger membrane switch is
damaged - flow bars DO show on the
meter display when the trigger IS
NOT actuated.
Trigger is being held before activating
meter for dispense.
Solution
Attempt to reprogram the meter. If you see a pop-up
screen on the PC that says, "Memory Failure" and/or the
meter screen defaults to the ACTIVATE/ACTIVATE
screen, the E-Prom on the meter board must be
changed. Install the Electronics Repair Kit (246675).
The Electronics Repair Kit includes a new meter board
with E-Prom. The meter then can be reprogrammed to
the features desired.
Tighten seal nut using two wrenches.
Clean, seal, and tighten joint.
Release the trigger during preset dispense.
Replace the trigger and trigger membrane using the
Trigger Repair Kit (246439 N. A., 249883 Australia). See
page 33. Do not use clamps or wire ties to hold trigger
during dispense, doing so voids the warranty.
Replace the trigger and trigger membrane using the
Trigger Repair Kit (246439). See page 33. Do not use
clamps or wire ties to hold trigger during dispense, doing
so voids the warranty.
Release trigger to activate meter.
309497K