User Manual

VRT DIRECT GAS-METER TRANSPONDER INSTALLATION CHAPTER 4
Page 14 EnergyAxis Gas Module ― User Guide
Elster Integrated Solutions • Draft A Nov. 2007
Checking Mechanical Index to Electronic Index
Operation
This procedure will verify the electronic index is properly recording
counts and subcounts corresponding with those of the mechanical
index.
1. Rotate the transponder wriggler till the drive dial is in the 12
o’clock position.
2. Electronically read the transponder subcounts.
• Use an Handheld or other suitable interrogator/programmer.
• Remember the subcount value.
3. Facing the index, rotate the drive dial 3 times counterclockwise.
Stop at the 12 o’clock position.
4. Electronically read the new transponder subcounts.
• Use an Handheld or other suitable interrogator/programmer.
• Observe the new subcount value and calculate the
difference between it and the starting subcount value.
5. If the new subcount value is exactly
3 subcounts higher than the
original reading, proceed to step 8.
6. If the new subcount value is less than 3 subcounts higher,
consider whether the subcounts may have rolled over during the
test.
• If it appears the discrepancy is
due to rollover, proceed to
step 8.
7. If the new subcount value is less than 3 subcounts higher,
repeat this procedure from Step 1.
• If the procedure fails a second time, replace transponder
with a new one.
Type A
Type R415 & R
Type S
Drive dial hand in 12 o’clock position