Graco Matrix D Series Instruction Manual page 17

Problem
Meter does not Meter valve is blocked with debris -
stop dispensing. flow bars DO NOT show on the meter
display when the trigger IS NOT actu-
ated.
Trigger or trigger membrane switch is
damaged - flow bars DO show on the
meter display when the trigger IS
NOT actuated.
Dynamic System Pressure (while dis-
pensing) exceeds the recommended
600 psi (4.1 MPa, 41.4 bar).
A hydraulic quick disconnect was
used to connect the meter to the dis-
pense hose, allowing debris to block
meter.
Displayed dis- Meter is not programmed for the cor-
pensed amount is rect fluid type.
not accurate.
Meter gears are worn.
Meter will not take Battery has low charge or is dead.
work orders.
Battery inserted too soon.
Meter may not be programmed.
Battery may have been pulled during
programming.
Two meters may be programmed as
the same meter.
Meter work order list is full.
Meter has intermit- Meter is outside RF communication
tent or no RF com- range of transceiver.
munication.
Two meters may be programmed as
the same meter.
PC or transceiver is off.
Meter will not pro- Incorrect COM port selected for
gram. transceiver connection.
Transceiver is not powered up.
Transceiver dip switches are not set
for the communication cable being
used.
Matrix program is not in programming
mode.
The five-minute programming ses-
sion has expired.
Network and transceiver settings on
the meter are not correctly set.
Meter is outside RF communication
range of transceiver.
309497K
Cause
Flush the valve with mineral spirits at high pressure and
flow. Warning: Do not exceed the maximum working
pressure of the meter (1500 psi - 103 bar). If flushing
does not resolve the problem, the meter should be
replaced.
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.
Reduce system pressure. A lower ratio pump may be
required to reduce pressure and maintain sufficient flow.
Do not use quick disconnects with Matrix product. Use
of quick disconnects voids the warranty.
Verify meter programming.
Meter requires calibration due to wear. See page 19.
Recharge battery.
Wait 30 seconds and reinstall fully charged battery.
Reprogram meter.
Reprogram meter.
Ensure each meter is programmed individually.
Normal operation. Meter will hold up to 5 work orders.
Reposition transceiver or add a transceiver.
Ensure each meter is programmed individually.
Turn PC on, open Matrix application, and check power
on transceiver.
Change to correct COM port at the PC in Matrix trans-
ceiver configuration screen.
Power up transceiver, wait 30 seconds or until red lights
go blank and green light remains on alone.
See transceiver manual 309498 to set dip switches.
Place PC in programming mode. See Programming the
Meter, page 4.
Place PC in programming mode. See Programming the
Meter, page 4.
Make appropriate settings. See Programming the Meter,
page 4.
Reposition transceiver or add a transceiver.
Troubleshooting
Solution
17