User's Manual

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Contact Elster Electricity for information
30 November 2006 6-7
REX Meter
Technical Manual 6 Installation and Removal
Removing the Main Circuit Board.
Care must be taken to prevent electrostatic discharge damage when handling
any of the electronic assemblies.
The inner housing must be removed to reach the main circuit board. To remove
the electronic assembly:
1. Disconnect the current sensor cable (not shown in Figure 6-3) from the
main circuit board.
2. If an option board is installed, disconnect the ribbon connector from the
main circuit board (not shown in Figure 6-3).
3. Facing the meter LCD, pull the main circuit board towards you and
away from the circuit board support frame.
Reassembling the Meter
The REX meter contains sensitive electronic equipment. Use caution when
applying pressure on the main circuit board or any option boards that may be
installed. If the main circuit board or option board does not easily snap into
place, remove the main circuit board or option board and try again. Applying the
incorrect amount of pressure can result in a damaged or broken main circuit
board or option board.
The REX meter can be reassembled by reversing the instructions for
disassembling the meter as described above.
When reassembling the main circuit board, be sure to push on the LCD support
(see Figure 6-3). Pushing on the main circuit board in other locations may result
in damage to the electronic equipment on the main circuit board.