Operating Instructions
Jitter check
RAM/ROM check
Front panel check
This item opens the front panel button and knob check screen. Hit each button once
and turn every knob in each direction. Press the red power button to exit when finished.
Jitter
Jitter measures signal noise, timebase jitter, and sampling efficiency of the trace.
These values are used as part of the calibration checkout for the CT100, and results of
interest are explained in the manual section on calibration. A 36 in., 50 Ω test cable
must be attached to the CT100 during the measurement.
Calibration menu
For a full description of this menu, please see
Appendix D: Calibration Procedures.
CAUTION: Items within this menu should only be used upon calibration of a
CT100 or to verify that a CT100 is calibrated properly. Incorrect or improperly
set calibration values will corrupt trace data and may damage the unit.
Cable length selection
This item is identical to the
Main
menu item of the same name.
Manual calibration menu
The
Manual calibration
menu is for expert users only, and allows manual changes of
calibration values that are meant to be adjusted automatically.
Cable length selection
This item is identical to the
Main
menu item of the same name.
Step pulse reference
Adjusts the fine timing of the firing of the step pulse.
Timebase DAC
Adjusts the maximum range of the fine timing of the sampler.
Hybrid reference
Adjusts the reference voltage as applied to the hybrid unit.
Clear temp lookup
Clears the internal records of temperature calibrations. Clearing these records
will cause some interruption to operation as the CT100 self-calibrates for
changing temperatures. Temperature lookup data must be cleared immediately
after the CT100 has been calibrated.
Hybrid adjust on
Toggle temperature correction for the Hybrid Comp calibration setting.
Mohr CT100 / CT100HF Operator's Manual
29