User's Manual

APPENDIX
Page 36 VRT Gas Transponder ― User Guide
AMCO Automated Systems • P/N 52870T010 Rev 1 May 2003
Chapter Seven
Chapter SevenChapter Seven
Chapter Seven
Troubleshooting
The following table offers troubleshooting tips for some common
transponder conditions. For all other matters, contact AMCO
Automated Systems.
Symptom Possible Cause Solution
The incorrect serial number has been entered
into the interrogator
Verify that the correct serial number is being
interrogated
The transponder is either too close or too far
away from the interrogation device
Be certain that the interrogator is within range
of the transponder. An SRP should be within
3 to 12 inches of the transponder. If operating
an MMI in Lat/Lon or GEO Mode be certain
that the transponder is in the reading window.
Verify that no other interrogations are taking
place, either with an SRP, PI, URFI, or MMI.
Transponder cannot be
interrogated with an SRP, MMI
or PI Device
Interference from another interrogation device.
Any MMI within range of the transponder must
have the transmitter turned off while you are
interrogating with the SRP.
The SRP is either too close or too far away from
the transponder.
Move the SRP (and particularly the top, where
antenna resides) closer or farther away from
the transponder. An SRP should be with 3 to
12 inches of the transponder.
Transponder will not program
The programming device (SRP, PI) is attempting
to communicate with the incorrect transponder
serial number
Correct the serial number in the programming
device.
Malfunctioning Interrogator Check operation of interrogator on known
good transponder
Interference from external sources Clear area around transponder of metal
objects (lawn chairs, bicycles, etc.).
Transponder will not read from
the street
Hard-to-read location Reposition the interrogator and try re-reading
the transponder. If this does not work, then
place a known good transponder at the same
location and attempt to read both units from
the street. If the new unit will read replace the
old unit with the new unit.
Tamper flag will not reset The orientation of the transponder at the time it
was programmed is different from the current
orientation of the transponder.
Reprogram the electronic index reading. This
will reset the tamper to “false” and establish
the “no tamper” position of the transponder.
I rotated the drive hand
forward three times and back
three times but the subcount
increased anyway.
Transponders will accumulate subcounts with
rotation of the drive hand in either the
counterclockwise or clockwise direction.
If the index is rotated in reverse during
installation and/or during troubleshooting, the
transponder should be reprogrammed to the
current index reading to reset the subcounts
to zero.