5500A
Operator Manual
8-32
8-45. Measuring Input Resistance and Capacitance
Measured @ SCOPE
terminal.
MEASURE
res 50Ω
MODE
meas Z
ff f f f
res 50Ω
res 1MΩ
cap
volt
edge
levsine
marker
wavegen
video
pulse
meas Z
overld
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:
• 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 menus for other oscilloscope calibration modes.
If you have selected Capacitance measurement, the menu appears as follows:
Measured @ SCOPE
terminal.
SET
OFFSET
MEASURE
cap
MODE
meas Z
ff f f f
CLEAR
OFFSET
• SET OFFSET With the cable disconnected at the oscilloscope but still connected at
the Calibrator, press to cancel the capacitance of the Calibrator. Press again to
CLEAR OFFSET and return to the capacitance reading.
Default Impedance Measurement range = 50 ohm.
8-46. 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 50 Ω“ 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.
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