User Manual

Page 36 EnergyAxis Gas Module ― User Guide
Elster Integrated Solutions • Draft A Nov. 2007
Appendix
EnergyAxis Direct Gas-meter Transponders can be programmed (at
the factory or in the field) with values specified by the utility.
This Appendix highlights some of the types of data that can be
programmed at the factory and the range of selections within each
type.
For comprehensive discussion of all programmable transponder
data, please refer to the applicable interrogator/programmer user
guide.
Pre-Divider
The number of subcounts recorded with each revolution of the drive
dial on 1-ft
3
and 2-ft
3
indexes is one. A 1-ft
3
index requires 100
revolutions to yield 100 ft
3
(1 count) and a 2-ft
3
index requires 50
revolutions to yield 100 ft
3
(1 count). Therefore, the pre-divider for a
1-ft
3
index is 100 and for a 2-ft
3
index it is 50.
Pressure-Compensation Factor
When a transponder is used in conjunction with a pressure-
compensated index, a pressure-compensation factor can be
programmed into the transponder memory by the utility at the time
of installation to ensure that the electronic index reading agrees with
the mechanical index.
Pressure-compensation factors are unique for specific indexes and
can be obtained by contacting Elster Integrated Solutions’ Customer
Service Department at [phone].