PRÜFTECHNIK VIBXPERT II, Руководство по эксплуатации

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4-19
VIBXPER
T II 05.2012
Display setup
C1. Display Setup for measurement: Coastdown, Orbit, Phase
The following sections C to E only describe the parameters specific to
the measurement type. Global display parameters, such as 'Zoom' and
'Cursor', can be found in sections A and B.
s
how overall
(c
oastdown
- o
verall value
): The results screen displays
the RMS value and one of three peak values in dependence on the
RPM. Select the peak value (0-peak, peak-peak, crest) which is to
be displayed as standard.
p
lot type
(c
oastdown
- p
hase
, o
rBit
): The runup / coastdown curve can
be displayed as a Bode or Nyquist plot . Orbit (polar representation)
and
single signals
(Cartesian representation) can be selected for the
shaft movement. The AC only option shows the AC component of
the signal.
s
how amplitude as
(c
oastdown curve
- p
hase vector
): Amplitudes can be
displayed as an RMS value or a peak value (
0-p
).
c
ontinuous phase
(c
oastdown
- p
hase with
B
ode plot
): The scale of the
phase axis begins at 0° and ends at 360°. If the curve runs beyond
the 360° mark during the measurement, it is continued unchanged
at 0° (
No
). If you select the
Yes
option, the phase axis continues
beyond 360° - beginning again at 0° - and the phase progression is
continually displayed (see page 5-6).
s
peed
m
arker
(o
rBit
): See section B1.
c
ontinuous measurement
(
live mode
): see section X on page 4-17.
Left:
Display setup for Coastdown
(Phase-RPM)
Right:
Display setup for shaft vibration
(Orbit)