User Manual

Performance Ver
ification
8. Connect a short SMA cable from the other SMA connector on the probe calibration fixture to the high voltage output
connector on th
e pulse generator.
9. Connect the tri
gger out from the pulse generator to the trigger in on the sampling oscilloscope.
WARNING. To reduce the risk of electric shock, do not exceed 42 Vpk on the pulse generator. Use caution w hen making
measurements.
10. Turn on Channel 2 and se
t the vertical scale to 100 mV/div.
11. Turn on the pulse gener
ator and set the output to approximately 40 V.
12. Adjust the oscil losc
ope horizontal and vertical position controls to display a rise time signal similar to that shown in the
setup figure.
13. S et the oscilloscope horizontal scale to 500 ps/div and center the waveform.
14. Use the oscilloscope measurement capability to display rise time.
Increase the stability of the pulse edge measurement by using averaging, if available. Rise time is determined from
the 10% and 90% amplitude points on the waveform.
15. R e cord the rise time as t
s
.
Test System and Rise
Time
16. Disconnect the SMA-to-BNC adapter from the BNC connector on the 1103 power supply.
17. Connect the BNC end of the adapter to the 50 W termination.
18. Connect the probe to the 1103 power supply.
19. Connect two spring-loaded probe tips to the probe head sockets.
20. S lide the switch on the probe to the 42 V range (÷ 50).
21. Touch the probe tips to the DM pads on the probe calibration adapter and measure the rise time.
22. P erform the calculation with the two measured rise times and the formula below. A typical result is about 330 ps.
23. Record the m easured rise time of the system and probe as t
s+p
. This measurement at the 42 V range (÷ 50) is typically
about 400 ps.
This completes the performance verification procedures.
P6250 & P6251 Technical Reference 33