Fluke 5522A Operators, Руководство оператора

Страница: 340 / 426

5522A
Operators Manual
10-26
How to Measure Input Resistance and Capacitance
gjh064.eps
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 M
Ω
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:
gjh065.eps
•
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.
Default Impedance Measurement range = 50
Ω
.
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 M
Ω
” termination.
2. Connect the SCOPE terminal on the calibrator to Channel 1 on the oscilloscope.
3. Press
O
to initiate the measurement.