Using the Probe
16
Demagnetization and Zero Adjustment
1 Allow both the Infiniium oscilloscope and the probe to warm up for
at least 30 minutes before making these adjustments.
2 Ensure that the channel offset is set to 0V on the oscilloscope
channel to which the probe is connected.
3 Ensure that the probe sensor is NOT clamped around any
conductors.
4 Slide the probe sensor Opening Lever into the Locked position.
Refer to Figure 4 on page 14 for the location of the lever.
5 Press the DEMAG button on the terminator. A demagnetization
waveform will be displayed for a short time on the channel to
which the probe is connected. Wait until this waveform is no
longer displayed.
6 When the demagnetization waveform is no longer displayed,
adjust the ZERO ADJ control on the probe terminator to move the
trace for the channel to which the probe is connected as close as
possible to the 0V position. If the ZERO ADJ control cannot center
the trace adequately, then do the following:
a
Move the ZERO ADJ control to a midrange position.
b Carefully adjust the Coarse Adjustment Trimmer on
the probe sensor to move the trace on the channel to
which the probe is connected as close as possible to
the 0V position.
c Adjust the ZERO ADJ control on the probe terminator
to move the trace for the channel to which the probe
is connected as close as possible to the 0V position.
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