User's Manual

Elster American and Itron Commercial Meter Installation
Warning Failure to properly align the 100G DLS wriggler with the meter drive post can cause binding
and lead to poor registration or meter failure.
4. Inlet lettering on the commercial gas ERT module must line up with Inlet lettering on the meter.
5. Slowly lower the module onto the Itron commercial meter. Carefully align the meter drive dog and
commercial ERT module wriggler. The ERT housing should rest on the top of the meter without gaps.
Warning Do not press down on the 100G if a gap exists between the ERT and the meter. A gap may be
caused by misalignment of the ERT wriggler and meter wriggler's drive teeth. Pushing down on the ERT
could damage the ERT wriggler or meter drive teeth. To eliminate a gap, remove the 100G and repeat
steps 2 and 3.
To mount the index assembly on the adapter plate
1. Align the back outer index bracket screw holes with the adapter plate mounting holes.
2. Secure the index assembly to the adapter plate with the two 1/4-20 x 0.375 Fillister-head screws. Torque
the index bracket mounting screws to 3 - 6 inch-pounds.
Note After assembly, the index will be centered on the adapter plate.
TDC-0823-014 100G Series Gas ERT Module Installation Guide, Direct Mount 72
Proprietary and Confidential