Agilent Technologies 35670A User Manual

To characterize a tachometer signal
Many rotating machinery measurements are only possible if you supply a tachometer
signal. This task helps you characterize a tachometer signal so you can properly set up
the parameters for the analyzer’s TACH connector.
1 Initialize the analyzer.
Press [
Preset
][
DO PRESET
].
Press [
Inst Mode
][
HISTOGRAM/TIME
].
Press [
Meas Data
][
UNFILTERD TIME CH 1
].
2 Connect the tachometer signal to the CH 1 connector on the analyzer’s front panel, and
to the TACH connector on its rear panel.
3 Press [
Scale
], then press [
AUTOSCALE ON OFF
] to highlight ON.
4 Specify the measurement parameters.
Press [
Freq
][
RECORD LENGTH
].
Press the up-arrow hardkey until there are several tachometer pulses on the display.
Press [
Pause-Cont
] to pause the measurement.
5 Use the marker to measure waveform amplitudes.
Press [
Marker
][
MARKER TO PEAK
] to place the marker on the waveform’s high point,
then turn the knob to place it on the low point.
Note each point’s Y-axis readout (for use in the next step).
Option AY6
Agilent 35670A
Measuring Rotating Machinery Operator's Guide
1-8

Agilent Technologies 35670A Specifications

General

Brand	Agilent Technologies
Model	35670A
Category	Measuring Instruments
Language	English