User manual

Operator's Manual
Probe Settings
When a Teledyne LeCroy-compatible probe is connected to the oscilloscope input, the probe is automatically
identified and the model name displayed on the Channel dialog under the "Probe" heading. Also, the Probe
dialog bearing the probe name is added to the right of the Channel dialog. When a probe is not connected, the
Channel dialog shows only the Cx tab for vertical setup.
When third-party probes are connected, an Attenuation field appears on the Cx dialog, with a default value of
/1, allowing you to enter attenuation and rescale values manually.
Channel dialog with tab for connected probe.
The Probe Dialog displays probe attributes and (depending on the probe type) allows you to AutoZero or
DeGauss probes from the oscilloscope touch screen. Other settings may appear, as well, depending on the
probe model.
Probe dialog showing the connected probe's control attributes.
Auto Zero Probe
Auto Zero corrects for DC offset drifts that naturally occur from thermal effects in the amplifier of active
probes. Teledyne LeCroy probes incorporate Auto Zero capability to remove the DC offset from the probe's
amplifier output to improve the measurement accuracy.
CAUTION. Remove the probe from the circuit under test before initializing AutoZero.
27