ZD Series High Impedance Differential Probes
14
Test Setup and Preliminary Procedure
NOTE: The correct operation of a ZD series probe requires software version
6.4.1.x or higher. The oscilloscope software version can be verified by selecting
Utilities > Utilities Setup > Status. Contact your local Teledyne LeCroy
representative or visit teledynelecroy.com/softwaredownload if the software in
your oscilloscope requires updating.
1.
Connect the ZD series probe to oscilloscope channel 1.
2.
Turn on the oscilloscope and allow at least 30 minutes warm-up time
before performing the Verification Procedure.
3.
Turn on the other test equipment and allow them to warm up for the
manufacturer’s recommended time.
4.
While the instruments are reaching operating temperature, make a
photocopy of the ZD Series Probe Test Record and fill in the necessary
data.
Functional Check
The functional check will verify the basic operation of the probe functions.
Perform the Functional Check prior to the Performance Verification.
1.
Return to the factory default settings by:
•
Selecting File > Recall Setup from the menu bar.
•
Touching the Recall Default button.
2.
Touch the
C1
descriptor box to open the
C1
dialog.
3.
Verify that the correct probe is sensed and displayed on the tab behind the
C1 dialog.
Verification Procedure
A. Output Zero Voltage
1.
Leave the probe connected to oscilloscope C1. Set the vertical sensitivity
for C1 to 20 mV/ and the horizontal scale to 1.0 us/.
2.
Turn on measurement P1 and set it to measure the mean of C1. Turn on
statistics.
3.
Insert the square pin short into the probe input sockets to short the inputs.
4.
Initiate an AutoZero (control on the ZD probe dialog behind C1).
5.
Wait an additional 15 minutes, then clear sweeps on C1.