BRUEL & KJAER VIBROCONTROL 8000 - 24.9.5 Tracking REB Acceleration (Recommended); 24.10 Rotation and Speed; 24.10.1 Reverse Rotation

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24.9.5 Tracking REB Acceleration (Recommended)
Typical uses: Rolling Element Bearings using an accelerometer on a variable speed machine (up to
4500 rpm). This channel type can only be selected in channels 1 through 3.
Measurement Description Default or Add
Overall
Overall dynamic amplitude measurement.
24 dB/octave (4 pole) roll-on, -24 dB/octave (4 pole) roll-off.
Default
Bias
DC sensor bias voltage for diagnostics.
Default
1X amplitude
and phase
A synchronous amplitude and phase measurement at
running speed.
Default
PT required
Cage
Envelope demodulated and tracking filtered amplitude.
Default
PT required
IRBP
Envelope demodulated and tracking filtered amplitude.
Default
PT required
ORBP
Envelope demodulated and tracking filtered amplitude.
Default
PT required
Ball Spin
Envelope demodulated and tracking filtered amplitude.
Default
PT required
2X Ball Spin
Envelope demodulated and tracking filtered amplitude.
Default
PT required
Waveforms
Asynchronous and Peak-Stretch (enveloping)
Default
24.10 Rotation and Speed
WARNING!
VC-8000 speed channels are not suitable for over-speed protection.
24.10.1 Reverse Rotation
Typical uses: Determine shaft rotation direction using two Phase Trigger inputs.
Measurement Description Default or Add
Rev Speed
Reverse Speed. The current measured speed in the
reverse direction.
Default
Num Rev
Rotations
Number of Reverse Rotations. A cumulative count of the
number of rotations in the reverse direction. Reset using
the peak hold reset button.
Default
Rev Peak
Speed
Reverse Peak Speed. Holds the maximum speed read in
the reverse direction. Reset using the peak hold reset
button.
Default
Forward Speed
Forward speed reading for the first sensor.
Default
Gap 1
DC sensor Gap voltage for diagnostics.
Default
Gap 2
DC sensor Gap voltage for diagnostics.
Default