15
MAINTENANCE
Check cable-entry seals periodically. Tighten and/or apply sealant if needed. This
is especially important in environments containing heavy concentrations of dust,
oil mist, or other residue.
Check all wiring connections occasionally for oxidation or corrosion. Clean and re-
seat if such conditions are noted.
If necessary, check and re-seat any connections that may have been subjected to
strain (during rework or construction, for example).
REPLACING BATTERY
NOTE:
The QSI2 and QSI3 communications module has a 3V lithium coin cell
battery installed on the PC board. In case of power failure, the battery functions
as power backup to maintain the internal system time. Any QSI2 or QSI3 feature
that uses a time reference as part of its functionality will be immediately accurate
to the current time when power is restored.
To replace battery in
“NO DISPLAY”
MODULE:
•
DISCONNECT POWER TO METER
•
Remove (6) screws retaining the cover plate to the base and lift the cover plate
free of the base (see Figure 12).
•
Flip the cover plate over and remove (4) screws retaining the PC board
assembly (see Figure 13).
•
Remove and replace the coin cell battery (CR2032) on the backside of PC
board (see Figure 14).
•
Reverse the procedure to reassemble the cover plate to the base. Make sure
the cover plate seal is seated before tightening the (6) cover plate screws.
To replace battery in
“DISPLAY READY”
MODULE:
NOTE:
On units with a display, only the display needs to be removed to replace
the coin cell battery. The battery is accessible through the opening where the
display is installed (see Figure 15).
•
DISCONNECT POWER TO METER
•
Remove (4) screws retaining the display to the cover plate. Lift the display
straight up to disconnect the 10-pin bridge connector. The bridge connector
could disengage from either socket connector (display or PCB assembly) or
both.
•
Remove and replace the coin cell battery (CR2032).
•
Reverse the procedure to reassemble the display to the cover plate. Make sure
the display seal is seated before tightening the (4) display screws.
