Tektronix P5200A Instruction Manual page 72

Adjustments
AC CMRR
WARNING. Dangerous voltages will be present on the calibration generator output terminals and connection cables. Always
verify that the generator is in the standby mode before you make any connections to the generator.
1. Verify that the generator output is off.
2. Connect both of the probe inputs to the red (+) banana connector on the front output of the generator. Use a
BNC-banana adapter if necessary.
3. Set the sine wave output of the generator to 297 Vp-p (105 Vrms) @100 kHz.
4. Set the oscilloscope horizontal to 10 μs/div.
5. Set the probe bandwidth to full and the attenuation to the lower range of the probe.
6. Enable the generator output. Adjust the oscilloscope vertical to display the signal.
7. Make only slight adjustments to only the +LF pots to optimize the CMRR (minimize the signal). Adjust the pots in
the following order: short-term +LF, long-term +LF, long-term +LF*. (The long-term +LF* adjustment is not used in
the P5202A probe.)
WARNING. Use only an insulated tool to make the adjustment. Failure to do so presents a potential shock hazard.
8. Disable the generator output.
53 P5200A Series High Voltage Differential Probes Instruction Manual