DigitalFlow™ GS868 Service Manual 23
Chapter 2. Error Codes and Screen Messages
End Time must exceed 
Start Time
by 5 min.
This message appears when in the LOG menu. Enter an end time that is at 
least five minutes later than the start time.
Header invalid An option card error indicating a programming failure or a loss of 
memory. Contact the factory.
Log Active, END only
hit any key
When in the 
LOG menu, this message indicates that the log is still 
compiling data. Only the End Time may be edited.
Log DONE, to inspect
hit any key
When in the 
LOG menu, this message indicates that the log is complete. Hit 
any key to display the log.
Log hasn’t started! hit 
key
When in the 
LOG menu, this message indicates that the log has not yet 
started.
Outside limits, value 
rejected.
When in the 
CAL menu, this message indicates that the calibration of the 
analog output is invalid. Hit any key to clear the message, and the GS868 
will default to the last valid calibration. The message will also appear if 
there is no ammeter connected to the analog output during calibration.
Overflow The display value overflowed. Reduce the number of decimal places or 
change the units.
??P<L Enter L again. The entered path length (P) is less than the axial dimension (L). Enter a new 
value for L.
range is X.XX to 
X.XX
When in the User Program, this message indicates that the entered number 
is unacceptable. Hit any key and enter a number within the allowable range.
Review calibration An option card error indicating a programming failure or a loss of 
memory. Contact the factory.
Review parameters An option card error indicating a programming failure or a loss of 
memory. Contact the factory.
Staring time must 
exceed current time
This message appears when in the 
LOG menu STD option. Enter a start time 
that is later than the current time.
Write error. An option card error indicating a programming failure or a loss of 
memory. Contact the factory.
Table 2: Screen Messages (cont.)
Message Meaning