Tektronix TICP-Serie Benutzerhandbuch Seite 43

DC Gain Accuracy
This procedure verifies that the TICP Series probes are functioning and meet the warranted DC gain accuracy.
Before you begin
1. Turn on the TekVPI oscilloscope.
2. Connect a 067-3281-XX 50 Ω precision termination to the output of the 067-1701-XX fixture.
3. Connect a DMM to the 50 Ω precision output with a BNC tee.
4. Connect a BNC cable from the tee at the output of the 50 Ω precision termination to any other oscilloscope channel. Verify the channel
is in 1 MΩ mode and 200 mV/div. This is used for proper grounding only.
5. Connect the 067-1701-XX fixture into channel 1 on the oscilloscope.
6. Connect the TICP Series probe into the 067-1701-XX fixture.
7. Turn on the Fluke 9500B Oscilloscope Calibrator.
8. Connect the Fluke 9530 Active Head to the Fluke 9500B on channel 1.
9. Allow the test equipment to warm up for 30 minutes at an ambient temperature of about 20 °C (68 °F).
About this task
This procedure is valid for all versions of the TICP Series probe.
Procedure
1. Tap File > Default Setup.
2. Run Signal Path Compensation, if recommended in Utility > Calibration...
3. Run self-calibration (Self-calibration
4.
Connect the TICPSMA probe tip to TICP probe.
5. Connect the TICPSMA to the Fluke 9500 Active Head.
6. Enable the TICP channel and use the following Vertical menu settings:
a) Range Mode: Manual
b) Range: 500 mV
c) Offset: 0 V
7. On the Fluke 9500B, select Mode: Manual Waveform with the following settings:
a) Select Waveform: DC
b) Select 400 mV/div
c) Turn output ON
8. Press the Single / Seq button to perform the measurement.
9. Record the DC voltage on the precision 50 Ω resistor in the table.
10. Press invert voltage (+/-) button on the Fluke 9500B to apply -400 mV to the probe and record the output voltage in the table.
11. Repeat the entire procedure for the remaining ranges and record the values in the test record table.
TICP Series Active Isolated Current Shunt Probes User Manual
on page 30).
Performance verification procedures
43