User's Manual

Sensus Commercial Meter Installation
Program the commercial gas ERT before you install it on the Rockwell meter (see Programming the
Commercial 100G Gas ERT Module Assembly on page 60).
Installing the Commercial ERT Module Assembly to the Meter
After the ERT module is programmed, complete the ERT module installation by installing the commercial
module to the commercial meter.
Warning Handle the commercial gas ERT module carefully so the metal passive radiator
antenna is not damaged.
To install the commercial ERT module on a Rockwell meter with an aluminum box direct
reading (VDR) index
1. Using a side-cutter, remove the two rear housing pins from the 100G commercial ERT module.
Caution Removing the rear housing pins may make the ERT module incompatible with other
commercial meters.
2. Tilt the ERT module at an angle and turn the wriggler until the drive notches line up with the meter
wriggler's drive teeth.
Warning Failure to properly align the 100G ERT module wriggler with the meter drive post can cause
binding and lead to poor registration or meter failure.
TDC-0823-014 100G Series Gas ERT Module Installation Guide, Direct Mount 82
Proprietary and Confidential