Keysight N2820A User Manual page 72

4 Probe Calibration
To Calibrate the Probe on InfiniiVision Oscilloscopes
72
ii) Turn on Averaging with 16 averages.
iii) For both channels, set the V/div as small as possible to fit the
waveform on screen. For the zoomed-in channel, this should be
less than 10μA. For the zoomed-out channel, this should be less
than 2mA. If the waveform is not on screen at these settings,
increase the V/div and adjust the offset until these settings can
be used.
iv) Turn on Vavg measurements for both channels.
d To set the zoomed-out offset, turn R2 using the supplied
screwdriver until the Vavg measurement is +/- 1mA.
e To set the zoomed-in offset, turn R4 using the supplied
screwdriver until the Vavg measurement is +/- 1mA.
The R2 and R4 adjustments are located on the underside of the probe
NOTE
amplifier as displayed in
probe is the preferred adjustment tool.
Figure 34
f Press the Channel on/off key to turn the channel on (if the
channel is off).
Figure 34. The screwdriver provided with the
Location of Calibration Adjustments
N2820/1A User's Guide