Best Accuracy Calibration Level - HP 54710A User's Reference Manual

Calibration Overview

Best Accuracy Calibration Level

Best Accuracy Calibration Level

Best accuracy calibration level refers to the level of accuracy that is achieved
when a plug-in is installed in a mainframe slot and is calibrated to the best
accuracy level. A best accuracy calibration is initiated from the
"Channel/Calibrate/Calibrate to best accuracy" menu.
The intention is that a recent best accuracy calibration should be performed
before critical measurements are made to ensure the best measurement
results. The best accuracy calibration is fairly quick and easy, and only a
BNC cable is needed to perform the calibration.
The oscilloscope establishes best accuracy calibration factors by calibrating
the plug-in and the mainframe slot as a system. These calibration factors are
stored in the mainframe's nonvolatile RAM. The oscilloscope keeps these
calibration factors for a plug-in/slot combination until a plug-in with a
different serial number is calibrated to best accuracy in that slot. This means
that a plug-in that was calibrated to best accuracy in a particular mainframe
slot can be removed and reinstalled later in that slot and the best accuracy
calibration is still in effect, as long as no other plug-in was placed in that slot
and calibrated to the best accuracy level in the meantime.
The best accuracy calibration factors for a two-wide plug-in are stored in the
left slot. For example, if you performed a best accuracy calibration on a
two-wide plug-in in slots 2 and 3, the best accuracy calibration factors are
stored in the memory behind slot two. You can remove the two-wide plug-in
and install a single-wide plug-in in slot 3. You can perform a best accuracy
calibration on the single-wide plug-in in slot 3 without affecting the best
accuracy calibration factors for the two-wide plug-in that are stored behind
slot 2.
5–6