Fluke 9640A Series, Instruction Manual

Page: 68 / 324

9640A
Instruction Manual
3-20
Reference Off Soft Key
The
Reference Off
soft key returns the Instrument to the
Leveled-Sine
screen and its
output settings. The message
Switch from Reference – Confirm with Operate
may
appear if switching confirmation has been selected as a Reference Preference.
Frequency and Level Track Main Soft Keys
The
Set as Reference
soft key always transfers the current
Level
and
Frequency
settings into the reference settings. If only a
Ref Freq
is required, the
Level Track Main
soft key should be pressed. This releases the
Ref Level
field to track the main
Level
setting. See the following Frequency and Level Tracking screen. Only the
Ref Freq
remains fixed.
The soft key beside the
Level
field can be used at any time to re-establish the current
Level
as a
Ref level
.
ead22f.bmp
Frequency and Level Tracking