User's Manual

Testing, Troubleshooting, and Maintenance
CENTRON Meter Technical Reference Guide 8-9
Software Cannot Communicate with Module
Reed Switch Does Not Activate the Alternate Mode
Reset Mechanism Does Not Initiate Demand Reset
Demand Reset Cannot be Initiated Through PC or Handheld
Component Failure Replace module.
Cause Solution
Cause Solution
Optical Probe Cable Assembly Failure
Check cable with known register that
communicates. Check cable against known cable
that is functioning. Also check batteries in cable
assembly.
Com Port in PC is Set Wrong
Verify proper Com Port number has been selected
in the programming software. If the wrong Com Port
is selected, communications will not occur.
Security code in Module
If security codes have been downloaded to the
register, the programming device must have the
proper code to make connection to the module.
Verify security codes in the programming software.
Probe Not Connected Properly
Verify Optical Probe lines up properly over the
optical connector. Re-install cover for proper
alignment. Verify PC or handheld and cable are
securely connected and attached to the correct Com
Port.
Optical Connector Failure Replace cover assembly.
Electronics Failure Replace module.
Incorrect Baud Rate
Optical port can be programmed to operate at 4800
or 9600 baud. Factory default baud rate is 4800.
Cause Solution
Magnetic Field is too Weak
Place magnet closer to switch or use stronger
magnet.
Reed Switch Failure Replace module.
Alternate Mode Items Not Selected
Re-program meter with items to be displayed in
Alternate mode.
Cause Solution
Reset Mechanism Does Not
Initiate Demand Reset
Re-install or Replace cover assembly.
Reset Has Occurred Within Last 60 Seconds
Manual demand reset cannot occur within 60
seconds of the previous demand reset. Wait 60
seconds and perform a second Demand Reset.
Reset Button Is Defective Replace module.
Cause Solution
Communication Cannot Be Established See Programming Problems.