Fluke 9640A Series, Instruction Manual

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Local Operation
Controls, Indicators, and Connectors
3
3-7
Data Fields
Data fields contain numeric values that effectively describe the present output parameters
of the Instrument. Following power-on, these fields all contain default values. To change
or edit these values the user must do the following:
1.
Bring up an appropriate screen, for example, the previous
Leveled Sine
screen.
2. Select the field that requires editing (use a soft key).
3. Select an edit mode,
Cursor
or
Step
(press the soft key again).
4. Edit the data in the field using the appropriate controls.
When selected, the field is said to have the focus and is easily identified by the shading of
its data. In the
Leveled Sine
screen, for example, the
Frequency
field has the focus, and
the edit mode is
Cursor
, as identified by the black cursor (marker) that can move from
digit to digit (left-right,

). In this case, the user can easily make minor edits to the
selected digit using the spin wheel or the up-down (

) keys. If several characters in
the field need to change, using the alphanumeric keypad to edit the field (
Keypad edit
) is
a better choice.
A data field that has all of the characters in the field selected (highlighted black) is in the
Step edit
mode. When this mode is available to a field, an indicator shows in the soft
labels to the right of each field, (
Step edit
) or (
Cursor edit
). A toggle effect performed
by the soft key next to the focus field allows the user to switch between edit modes.
A more detailed description of the Editing Settings is available later in this chapter under
Screen Controls and Indicators .
Soft Labels
Six soft labels run vertically along the right side of the screen and five run horizontally
along the bottom of the screen. Each of the labels corresponds to an adjacent soft key.
When a soft label contains text, pressing its adjacent soft key directs the display to
respond accordingly.
The horizontal soft labels across the bottom of the screen provide prompts to expand the
current definition, add/remove fields, or call another screen (menu selection).
Pressing

while in either of two field edit modes (cursor or step edit) causes the soft
labels to present a selection of measurement units for use with the selected field. During
alphanumeric (keypad) edit, the soft labels present a selection of scientific multipliers for
use with the selected field. These multipliers are shown in terms of the previously
selected units (watts, dB, volts).
If a soft label contains no text, pressing its adjacent soft key has no effect. However,
when a labeled soft key is pressed the effect is immediate and obvious on the display.