User's Manual

Romet Commercial Rotary Meter Installation
Installing the Residential ERT Module Assembly to the Romet
After the 100G ERT module is programmed, attach the module to the Romet rotary meter.
To attach the ERT module to the Romet rotary meter
Refer to the Installation Example on page 97. The ERT module must be mounted on the adapter plate in an
upright position. Follow the alignment of the mounting components shown in the exploded installation
illustration (step 2).
1. Assemble the O-Ring (4) on the meter drive dog.
2. Insert the drive dog (5) into the Romet rotary meter and secure it to the meter using the three flat head
screws (11).
1. Socket head cap screws (4) 1/4-20 x 3/4 lg
2. Socket head cap screws (2) #4-40 x 1/2 lg
3. Socket head cap screws (2) #6-32 x 1/2 lg
4. O-Ring
5. Drive dog assembly
6. Romet STD CTR
7. Itron 100G residential ERT module
8. Lock washers (4)
9. Lock washers (6)
10. Adapter plate
11. Flat head screws (3) #4-40 x 5/16
3. Mount the adapter plate (10) over the meter drive dog and to the Romet rotary meter using the lock
washers (8, 9) and the socket head cap screws (2, 3).
4. Tighten the adapter plate mounting screws in an alternating pattern.
5. Align the ERT module wriggler with the meter drive dog (5). Ensure the drive dog aligns with the space
between the wriggler's teeth.
Warning A gap may be caused by misalignment of the module wriggler and the meter wriggler's drive
teeth. Pushing down on the module could damage the module's wriggler or meter drive teeth. To eliminate
a gap, remove the module assembly and re-align the module's wriggler with the meter drive dog.
6. Secure the ERT module to the adapter plate using the four socket head cap screws (1).
7. Complete the necessary paperwork and verify all excess materials are removed from the customer's
premises.
TDC-0823-014 100G Series Gas ERT Module Installation Guide, Direct Mount 99
Proprietary and Confidential