Fluke 867B User Manual page 49

867B/863
Users Manual
Frequency Considerations
F interacts with other features in several ways.
Generally, features that are active in the selector
function are retained when you press F. For
example, active features in VAC, such as "Peak
Hold", "rms" or "Average", or "dB" would stay
activated.
If you press any other key while the Frequency
Softkeys are active, the Frequency Softkeys are
deactivated and the frequency type is retained.
F cancels Min Max, Touch Hold, "Rel", and the
Continuity functions and resets the plot in Trend
Display Mode.
Turning the selector to another position resets the
frequency measurement display to "Hz" in the
secondary display. Duty cycle, pulse width, and
period selections are not retained.
If you press F while the selector is set to Ohms,
Conductance, Diode Test, COMPONENT TEST,
LOGIC, or SET UP, the GMM emits a long beep and
ignores the key press.
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The frequency measurement type (Hz, duty cycle,
pulse width, period) does not change when you
change display mode; the type remains in the
primary or secondary display as last selected.
In Amps functions, moving between "AC" and "DC"
or "mA" and "µA" swaps the frequency reading back
to the secondary display.
Pressing F cancels Touch Hold. While F is
active, you can press H to activate Touch Hold,
which then works normally with the frequency type
shown in the primary display.
Pressing F cancels Min Max. Pressing M when
F is active accesses the Min Max Softkeys but
retains frequency as the primary function.
If you press F when P is active, the GMM
beeps and ignores the key press. While F is
active, pressing P accesses the Print/Save
Softkeys, retaining the frequency primary display
selection.