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3. LWIFI & LWIFIX BOARD INSTALLATION
The LWIFI or LWFIX boards come installed in the
meter when the meter is ordered with communica-
tions ordering codes C or D. They can also be
installed later by the user by inserting them into the
middle backplane slot that is reserved for commu-
nications boards. Please see the photo to the right
of a meter with a WIFI board in the middle slot. All
that is visible is the Mini-USB connector.
Disassembling your meter
To remove the electronics assembly from its case, first remove any connectors. Use a flat
blade screwdriver to press down on two spring-loaded tabs at the top of the rear panel to free
the panel from slits at the top the case. Then lift up the rear panel to free it from the slits at
the bottom. This will unhook the rear panel, and the electronics assembly will slide out.
Reassembling your meter
1. Verify that the top and bottom edges of all circuit boards are at the same horizontal level.
If boards are inserted one electrical pin off, this may burn out the electronics.
2. Slide the electronics assembly back into the case until the display board is seated flush
against the front of the case.
3. Carefully insert the fixed bottom tabs of the rear panel into the bottom of the case, then
nudge the circuit boards from side to side with a flat-blade screwdriver until each board is
held firmly by an alignment groove in the rear panel. Also note the alignment pins in the
middle of the rear panel.
4. Once all boards are held firmly, insert the top tabs of the rear panel into the case.
5. Verify that the installed rear panel is flat. If it is bulging out, if the top tabs cannot be
inserted, or if there is no room for connectors, realign the rear panel.
6. Once the rear panel is in place, reinstall the connectors.
Knockouts for
circuit boards
Two fixed
bottom tabs
Two spring
loaded top tabs
Rear panel grooves for circuit board alignment
Circuit board
alignment pins