Fluke 9100 User Handbook Manual page 202

10.3.4.4 Calibration Errors
In stage (2) of the calibration procedure, the output of the 9100 is incremented or
decremented by the necessary amount to obtain a measured output equal to the target
value. In the process, a condition may arise which prevents generation of a suitable
correction factor, due to predefined internal limits for that 'Factor' being exceeded. If this
is the case, the error message:
Amplitude outside limits
will be displayed when you press the CALIB screen key, and the previously-stored
calibration correction for this target value will remain unaltered.
The predefined limits, programmed into the 9100 firmware, are sufficiently wide to cope
with all normal output errors likely to arise during recalibration. If the above error
message appears, it will probably be due to one of two causes:-
1. the Model 9100 has developed a fault.
2. the measuring instrument has developed a fault, is incorrectly set up, or is incorrectly
connected to the Model 9100's terminals.
The cause should be determined and rectified before proceeding.
Final Width = 215mm
10.3-12 Section 10: Calibrating the Model 9100: Standard Calibration — Basic Sequences