Maintenance and Troubleshooting    |   6-3
Power Down Detected
The system detected that the power was removed. For example, a power 
outage would cause this message to display. You can acknowledge this 
system message by setting or reading any user-programmable value and 
this will clear the message from the display. The message will not clear by 
removing and restoring power to the unit.
Primary Calibration
This message appears when the system is performing a Primary Calibra-
tion. The message continues to be displayed during the one-hour recov-
ery period after the primary calibration.
System Calibrating
This message indicates that a system calibration is in progress.
System Verifying Cal
This message indicates that a system verification is in progress. It will ap-
pear during the entire automatic verification cycle or during the recovery 
period for a remote or manual verification.