Time Base Marker Calibration Procedure For An Oscilloscope - Fluke 5522A Operator's Manual

5522A
Operators Manual

Time Base Marker Calibration Procedure for an Oscilloscope

This sample procedure uses the Time MARKER function to check the horizontal
deflection (time base) of your oscilloscope. See your oscilloscope's manual for the exact
time base values recommended for calibration.
Before you begin this procedure, verify that you are in MARKER mode. If you are, the
Control Display shows the following menu.
Perform the following sample procedure to calibrate the time base:
1. Connect the calibrator to Channel 1 on the oscilloscope. Select 50
2. Apply a time marker value according to the recommended calibration settings in your
You may enter the equivalent frequency instead of the time marker value.
For example, instead of entering 200 ns, you may enter 5 MHz.
3. Set your oscilloscope's time base to show 10 time markers. The time markers should
For an accurate reading, align the signal's peaks with the horizontal center axis.
4. Repeat this procedure for all time marker values recommended for your oscilloscope.
5. Remove the signal by pressing
10-22
use an external 50 termination. Make sure the oscilloscope is dc-coupled.
oscilloscope manual. For example, to enter 200 ns, press
, then press
align with the oscilloscope divisions, as shown in the example below.
Repeat for digital and analog mode as required. Some oscilloscopes may need the
magnification changed while calibrating in analog mode.
.
Note
.
impedance or
Peaks are aligned
with center axis
gjh060.eps
gl011i.eps