5520A
Operators Manual
8-16
After resetting the Calibrator, press a to return to the SC600 Option (the SCOPE
menu appears.) Press O to reconnect the signal output.
8-25. Calibrating the Voltage Amplitude on an Oscilloscope
The oscilloscope voltage (vertical) gain is calibrated by applying a dc or low frequency
square wave signal and adjusting its gain to meet the height specified for different
voltage levels, as designated by the graticule line divisions on the oscilloscope. The
signal is applied from the Calibrator in VOLT mode. The specific voltages that you
should use for calibration, and the graticule line divisions that need to be matched, vary
for different oscilloscopes and are specified in your oscilloscope’s service manual.
8-26. The VOLT Function
You can calibrate the Voltage gain using the VOLT function. Access this function
through the VOLT menu, which appears when you press a, or when you press the
VOLT softkey from the SCOPE menu.
Output @ SCOPE. TRIG V/DIV MODE
1 MΩ DC<-AC off MENU volt
fffff
1 MΩ
50Ω
DC<-AC
DC->AC
off
/1
(see “The
V/DIV
Menu”)
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 SCOPE menu.
Each menu item is described below:
• OUTPUT @ SCOPE Indicates the location of the signal output. If the signal does
not appear on the oscilloscope, press O. To disconnect the signal, press Y.
• 1 MΩ Toggles between 1 MΩ and 50Ω to match the input impedance of the
oscilloscope.
• DC<-AC toggles from ac to dc, producing the dc equivalent output. DC->AC
Toggles from dc to ac.
• TRIG If you are using square wave to calibrate the external trigger, use this key to
toggle the trigger off and on. When on, the reading will show “/1”, which indicates
that the external trigger is at the same frequency as the volt output. The external
trigger can be useful for many oscilloscopes that have difficulty triggering on low
amplitude signals. You can also toggle the trigger off and on by pressing T.
• V/DIV MENU Opens the voltage scaling menu, which lets you select the scale of
the signal in volts per division. This menu is described below in detail, under “The
V/DIV Menu.”
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