Instructions

Service Information
P6021 Instruction M anual
21
Adjustment Procedure
If the probe does not pass the performance verification procedure or you want to
optimize the performance of the probe, perform the following adjustment
procedure:
1. Insert a small screwdriver between the cover and the termination near the
part number, and gently pry up the top cover of the P6021 termination by
twisting the screwdriver. Leave the bottom cover on, since it must be in
place when the termination is in use.
2. Set up the oscilloscope as described below:
Vertical mode CH 1
Horizontal mode Main
Trigger source CH 1
Trigger coupling AC
Trigger mode Peak-to-peak, auto
Trigger slope Positive
Trigger level As required
Ch 1 coupling DC
Ch 1 resistance 1 M
Volts/division 2 mV
Time/division 10 ns
Averages 5 to 10
NOTE. When using a Wavetek 9100 calibrator w ith the scopecal option, no other
calibrators are required. The following setups are generic with nominal settings
indicated for the major adjustment steps.
CAUTION. To avoid damaging the probe, do not disconnect the probe termination
when measuring high currents. Leaving the probe unterminated can cause a high
voltage to develop in the secondary winding that may damage the current probe
transformer.
1. Connect the current probe calibration fixture to the fast rise output of the
calibration generator.
2. Set the fast rise output to maximum (1 Vpp).
3. Connect the P6021 probe BNC connector to the termination.
4. Connect the P6021 termination to the oscilloscope Ch 1 input.
5. Set the P6021 termination sensitivity to 2 mA/mV.
Preparation
Adjust Aberrations