
3500/42 Operation and Maintenance
Configuration Information
17
Reference Information
These fields contain information that indicates which module you are configuring.
Channel
The number of the channel being configured (1 through 4).
Slot
The location of the monitor in the 3500 rack (2 through 15).
Rack Type
Identifies the type of Rack Interface Module installed in the rack (Standard or
TMR).
Enable
An enabled proportional value specifies that the value will be provided by the
channel (
enabled,
disabled).
Direct
Data which represents the overall peak to peak vibration. All frequencies
within the selected Direct Frequency Response are included in this
proportional value.
Gap
The physical distance between the face of a proximity probe tip and the
observed surface. The distance can be expressed in terms of displacement
(mils, micrometres) or in terms of voltage. Standard polarity convention
dictates that a decreasing gap results in an increasing (less negative) output
signal.
1X Ampl
In a complex vibration signal, notation for the amplitude component that
occurs at the rotative speed frequency.
1X Phase Lag
In a complex vibration signal, notation for the phase lag component that
occurs at the rotative speed frequency.
2X Ampl
In a complex vibration signal, notation for the amplitude component having a
frequency equal to two times the shaft rotative speed.
2X Phase Lag
In a complex vibration signal, notation for the phase lag component having a
frequency equal to two times the shaft rotative speed. 2X phase lag is the
angular measurement from the leading or trailing edge of the Keyphasor
pulse to the following positive peak of the 2X vibration signal.
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