5522A
Operators Manual
How to Measure Input Resistance and Capacitance
You can press the MODE softkey to cycle through the functions in the order shown, or
you can press P to return directly to the OTHER modes menu.
Each option in the Impedance/Capacitance (MEAS Z) menu is described below.
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If you have selected Capacitance measurement, the menu appears as follow:
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Input Impedance Measurement
With MEAS Z mode selected, perform the following procedure to measure the input
impedance of an oscilloscope:
1. Use the MEASURE softkey to select "res 50Ω" or "res 1 MΩ" termination.
2. Connect the SCOPE terminal on the calibrator to Channel 1 on the oscilloscope.
3. Press O to initiate the measurement.
Input Capacitance Measurement
With MEAS Z mode selected, perform the following procedure to measure the input
capacitance of an oscilloscope:
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Measured @ SCOPE terminal Indicates the location of the measured input.
MEASURE Indicates the type of test. You can select res 50 Ω or res 1 MΩ
termination (for impedance) or cap (capacitance).
MODE Indicates the Calibrator is in MEAS Z mode. Use the softkey to change
modes and open the menus for the other oscilloscope calibration modes.
SET OFFSET With the cable disconnected at the oscilloscope but still connected at
the Calibrator, press SET OFFSET to cancel the capacitance of the Calibrator and
cable. Press again (CLEAR OFFSET) to cancel the offset.
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