For the best measurement results, a channel (plug-in/slot combination)
should be calibrated to best accuracy level. Also, two wide plug-ins must be
calibrated to best accuracy level to give accurate results in real-time mode.
The best accuracy calibration level has a temperature
∆
associated with it,
just like the mainframe calibration. This temperature
∆
appears in the
"Plug-in" calibration status screen for all plug-ins under the
"Utility/Calibrate/Cal status on" menu and for each plug-in under the
"Channel/Calibrate/Cal status on" menu.
In order for a channel to meet the specifications listed under "Best Accuracy"
in chapter 16, both the "Current frame Temp
∆
" and the "Best Accuracy
Temp
∆
" must be between
±
5
°
C. In other words, the oscilloscope must be
within
±
5
°
C from the temperature that the mainframe was calibrated at and
within
±
5
°
C from the temperature that the best accuracy calibration was
calibrated at for a particular plug-in slot calibration.
Calibration Overview
Best Accuracy Calibration Level
5–7
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