Calibrating The Time Base Of An Oscilloscope; The Time Marker Function - Fluke 5500A Operator's Manual

5500A
Operator Manual

8-106. Calibrating the Time Base of an Oscilloscope

The horizontal deflection (time base) of an oscilloscope is calibrated using a method
similar to the vertical gain calibration. A time marker signal is generated from the 5520A
and the signal's peaks are matched to the graticule line divisions on the oscilloscope.

8-107. The Time Marker Function

The Time Marker function, which is available through the Marker menu, lets you
calibrate the timing response of your oscilloscope. To access the Marker menu, press the
softkey under MODE until "marker" appears.
Each option in the Marker menu is described below.
8-80
OUTPUT @ SCOPE terminal Indicates the location of the signal output. If the
signal does not appear on the oscilloscope, press
press .
TRIG If you are using the external trigger, use this key to cycle through the trigger
settings. The available trigger settings are: off, /1 (trigger signal appears on each
marker), /10 (trigger signal appears on every tenth marker), and /100 (trigger signal
appears at every 100th marker).
You can also toggle the trigger off and on by pressing
MODE Indicates you are in Marker mode. Use the softkey to change modes and
open the corresponding menus for the other four oscilloscope calibration modes.
. To disconnect the signal,
.
gl033i.eps