Operation With Lecroy Oscilloscopes - LeCroy AP034 Instruction Manual

OPERATION WITH LECROY OSCILLOSCOPES

AP034-OM-E Rev D
When using a differential probe or amplifier, be careful to avoid
exceeding the common mode range. Because the common
mode signal is rejected by the differential probe, and is not
displayed, changes in the amplitude of the common mode
component are not apparent to the user. Exceeding the common
mode range may introduce distortion into the AP034 output.
Circuitry in the probe detects the presence of either attenuator,
and displays the effective gain of the probe on the probe front
panel.
When the AP034 probe is connected to a LeCroy oscilloscope
equipped with ProBus interface, the displayed scale factor will be
adjusted to account for the effective gain of the probe. The
channel O knob will control the probe offset, rather than the
FFSET
offset at the oscilloscope input. The probe control menu can be
activated by pressing the COUPLING button while the channel to
which the probe is attached is selected.
Figure 3. AP034 Probe Control Menu
ISSUED: January 2000
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