Measurement information – CEMB USA N100 User Manual

Page 66

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E - 2

List of symbols used for the instrument

time after which the display backlighting turns off automatically, calculated
from when the last key is pressed
time after which the instrument turns off automatically, calculated from when
the last key is pressed

Measurement information

sensor connected to the vibrations measurement channel

overall vibration value

number of measurements averaged for calculation of the overall vibration

synchronous vibration value at the rotation velocity

synchronous vibration value at the third harmonic of the rotation velocity

synchronous filter width

vibration expressed in g (1 g = 9.81 m/s

2

)

vibration expressed in mm/s

vibration expressed in µm (1 µm = 10

-6

m)

vibration expressed in inch/s (1 inch/s = 25.4 mm/s)

vibration expressed in mils (1 mil = 25.4 µm)

measurement of the effective vibration value

measurement of the peak vibration value

measurement of the peak-peak vibration value

frequency and velocity expressed in revs per minute (RPM)

frequency and velocity expressed in rotations per second (Hz)

vibration exceeds the instrument’s maximum measurement limit

amplitude and frequency of the vibration’s highest component

signal indicating no velocity, or velocity below the minimum allowed value

velocity exceeds the maximum allowed value

unstable velocity

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