User manual

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Appendix
Appendix 5: Vibration Meter Functions
Acceleration a
in units m/s2, g, in/s2, dB
Velocity v
in units m/s, in/s, dB
Displacement
in units m, in, dB
RMS level
Measurement result is based on RMS
Peak level
Measurement result is based on peak level
Peak-peak Level
Measurement result is based on peak-peak level
Moving Time-Average Level or
Moving Equivalent Continuous Level
with selectable time window 1, 2, 4 or 8 seconds.
Clock-Impulse Maximum Level
(Taktmaximalpegel)
Maximum velocity during a periodic 30 seconds
interval with time weighting F in accordance with
DIN 4150-2.
Peak Particle Velocity PPV
Ground or blast vibration amplitude is often measured as par-
ticle velocity or the speed at which a particle vibrates. This is
quantified as peak particle velocity PPV in the units [mm/s] or
[in/s].
Select the level type vel Pk on the XL2 to measure the actual
PPV and vel Pkmax for the maximum PPV during the mea-
surement period.
2000 dt 07.18