To specify tachometer holdoff time
If the edge of the tachometer input signal is not clean, the analyzer may trigger a
measurement at inappropriate times. Holdoff time specifies a delay between valid
tachometer transitions. The analyzer waits this amount of time before it accepts
another tachometer input.
1 Initialize the analyzer.
See the previous task, “To characterize a tach pulse.”
Press [
Pause-Cont
] to pause the measurement.
2 Configure the display.
Press [
Scale
],thenpress[
AUTOSCALE ON OFF
] to highlight ON.
Press [
AXES SCAL MARKERS
][
CHANGE WIDTH
]. Using the knob, widen the gap
between the markers, then press [
MOVE CENTER
].
Using the knob, move the axes scale markers to an edge of the tachometer input signal.
Press [
SCALE AT MARKERS
].
Rear Panel
Tach
Channel 1
Making Measurements Agilent 35670A Quick Start Guide
42
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