User's Manual

5
CAUTION: The TC modules contain electrostatic sensitive devices. You
must work with the modules at a protected workstation. Persons
handling the modules must be grounded with a protective wrist strap.
When you remove the modules from their packaging, place them on
antistatic foam. When handling the modules, hold them only by the edge
of the plastic holder.
DRILL THE METER BASE
GE I-70-S
1. Remove the glass cover from the meter and place the meter face down into a fixture for
holding the meter.
2. Using a 3/8″ electric hand drill and 3/8″ bit, position the drill alignment jig over the
meter base as shown in Figure 1a.
3. Drill a hole in the meter base as shown in Figure 1b.
4. Make sure the meter is clear of any debris by cleaning it with compressed air.
Figure 1a Figure 1b
Figure 1: Drill alignment jig
ABB AB-1
ABB meters usually have venting holes at the bottom center of the meter base. These can be used
as a guide for drilling a 3/8" hole in the meter base. The vent holes are typically covered with a
metal screen and a fiber filter that can be removed with needle nose pliers. These vent holes are
usually circular but smaller than 3/8" and are sometimes octagonal with “crosshairs” inside as
shown in Figure 2.
1. Using a 3/8" electric hand drill and 3/8" bit, drill the size of the circular hole to 3/8" in
diameter.
2. Limit the drill insertion to ½ inch so that the drill tip does not contact the meter frame.