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4.
Specify your preferred spectral lines and samples — A value of 400
or 800 lines is typically adequate. If an inappropriate value is
chosen, your instrument will provide suggestions during the trial
impacts.:
a. Press
b. Use the navigation arrows to select the required option > Press
.
5.
Select the required Fmax setting — Ensure the measurement range
covers the frequency range of interest. Typical values are Fmin = 1
Hz (60 cpm) and Fmax = approximately 10 times the machine
running speed:
a. Press
b. Use the navigation arrows to select the required option > Press
.
6.
Specify the total time required to take a waveform recording:
7.
Press
Wfm Duration Total Time.
8.
Select the required option.
9.
Press
.
10. Select the force signal trigger level:
a. Press
b. Press
channels.
c.
Press a button on the left beside the channel(s) you wish to
enable.
d. Press a button on the right beside the sensor you wish to
change > Select the required option.
MORE: Ensure you enter the Hammer's sensitivity correctly (this
value is normally printed on the hammer). You can now enter the
Hammer Trigger level — Typically a low value such as 1% of the
hammer's full scale range. You can adjust this when performing
Trial impacts.
Section 4 — Measurement Types and their Uses
Spectrum Waveform.
Fmax Fmin.
Hammer Trigger.
Change Channels to enable the appropriate
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