7-10
764333-675
Procedure:
1. Print calibration values from Service Mode.
2. Turn OFF power to unit. Follow lock-out/tag-out
procedures.
3. Open control panel and remove cables and back
cover.
4. Using a PLC puller or equivalent, remove the flash
memory chips from U5 and U22 sockets.
5. Install new program chips.
NOTE: Replacement chips are marked U5 and U22
and must be installed in the correct socket.
NOTE: The dot on the chip must line up with the
arrow in the socket.
6. Re-install back cover and cables.
7. Turn power ON, while holding down "3" touch pad.
8. Select Burn-In from selections, to burn-in the
software from new program chips.
9. Reload calibration values.
10. Turn OFF power then turn power ON.
11. Run a Diagnostic Cycle to check unit operation
before returning unit to service.
7.15 DISPLAY
Procedure:
1. Turn OFF power and shut OFF water supply.
Follow lockout/tagout procedures.
2. Remove control board.
3. Remove two screws holding display bracket to
plastic housing.
4. Gently remove display.
NOTE: Some adhesive from the touch panel
causes the display to stick. Pull gently to prevent
damage to the display or the touch panel.
5. Remove bracket from display.
6. Complete installation by following steps outlined
above in reverse order.
7.16 PRINTER
Procedure:
1. Turn OFF power, and shut off water supply. Follow
lockout/tagout procedures.
2. Flip up cover exposing printer.
3. Loosen two screws holding printer in place and
slide printer out.
NOTE: The connector on the printer cable should
slide out with the printer so the connector can be
grasped when removing the printer. On earlier
units, the printer cable was shorter, preventing
access to the connector. On these earlier units, it
is necessary to remove the control board for proper
access to the connector for the printer.
4. Complete installation by following the steps
outlined above in reverse order.
7.17 PRESSURE TRANSDUCER
Procedure:
1. Turn OFF power, and shut OFF water supply.
Follow lockout/tagout procedures.
2. Disconnect connectors to transducer, then remove
transducer.
3. Inspect transducer and note model number.
4. Install a new transducer and reconnect wiring.
Dip Switch Settings:
NOSHOK - Position 1 OFF, Position 2 OFF.
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