Meter Assembly; Removal Of The Electronics; Installation Of Thee; Sealing The Meter - Landis+Gyr FOCUS KWH Technical Manual

3.

Meter Assembly

Removal of the Electronics Housing from the Baseplate
In rare instances, it may be necessary to access the inner electronics of the Focus meter. To
remove the Electronics Housing from the baseplate, set meter on a solid surface and place hands
around the bottom of the gray housing where it meets with the baseplate. With thumbs in the 6
o'clock position, while touching both the housing and baseplate, squeeze firmly with thumbs using
considerable force, to flex the housing and release the bottom two fasteners located at the 4 o'clock
and 8 o'clock positions. It may be necessary to alternate pressure by thumbs until both fasteners
are released. Once these two fasteners are released, push gently toward the 12 o'clock position to
release the top two fasteners. The housing can be lifted off and then the current input connector
can be unplugged from the printed circuit board in the housing assembly.
Figure 7 – Removal of Electronics Housing
Extra care should be given to lift the housing straight off of the baseplate to avoid damaging the
spring contacts located on the base assembly.
Installation of the Electronics Housing onto the Baseplate
Before installing the Electronics Module onto the Baseplate, make sure that the Electronics Module
and Baseplate are free of foreign debris and that any cables are properly routed to prevent
interference with the meter's electrical connectors. Attach current input lead connector onto mating
connector on printed circuit board. Line up the 4 slots in the gray electronics housing with the 4
mating snap-on protrusions located on the black baseplate. Once aligned, apply gentle force to
snap the two assemblies together.

Sealing the Meter

FOCUS
The meter comes standard with T-seal provision. To gain access to the inside of the meter,
the T-seal must be removed (broken). Factory T-seals have unique markings. Many utilities likewise
have T-seals with a unique signature. A missing or broken T-seal on a meter in a field installation can
be an indicator that someone has gained access to the internal meter (unauthorized access). It is also
desirable that the original factory T-seal remains intact. In the case of warranty considerations, a
factory T-seal in place does validate the meter has not been altered. If re-sealing is desired, T-seals
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