Flomec QSI Series, Руководство по установке

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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
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:
DISCONNECT POWER
TO METER
WITHOUT DISPLAY
• Remove (6) screws retaining the
cover plate to the base and lift the
cover plate free of the base (see
Figure 15).
• Flip the cover plate over and
remove (4) screws retaining
the PC board assembly
(see Figure 16).
• Remove and replace the coin cell
battery (CR2032) on the back side
of PC board (see Figure 17).
• 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.
WITH DISPLAY
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 18).
• 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
base. Make sure the display seal
is seated before tightening the (4)
display screws.