Fluke 5522A Operators, Operator'S Manual

Page: 272 / 426

5522A
Operators Manual
9-10
How to Use
X
and
D
The
X
and
D
keys cause the current value of the signal to jump to a pre-determined
cardinal value, whose amount is determined by the current function. These keys are
described in more detail under the descriptions for each function.
How to Reset the Oscilloscope Option
You can reset all parameters in the 5522A to their default settings at any time during
front panel operations by pressing the
R
key on the front panel.
After resetting the 5522A, press
a
to return to the Oscilloscope Calibration Option
(the Volt menu appears). Press
O
to connect the signal output.
How to Calibrat 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, designated by the graticule line divisions on the oscilloscope. The signal is applied
from the 5522A 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.
The Volt Function
The Voltage gain is calibrated using the Volt function. This function is accessed through
the Volt menu, which appears when you start the SCOPE option, or when you press the
softkey under MODE to scroll through the oscilloscope calibration menus.
gjh052.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 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
.
•
DC <-> AC Toggles between a dc or ac signal. Pressing the softkey from the ac
signal, produces the dc equivalent output.
•
1 M
Ω
Toggles the calibrator’s output impedance setting between 1 M
Ω
and 50
Ω
.
•
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 indicated
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