Rockwell Automation 441-PEN25 Enpac Ex Data Collector - Manual (Page 133)

Publication GMSI00-UM001A-EN-E - February 2005
Glossary 127
list type
List types allow you to group lists by their function. For instance, you might
group lists like this.
List window
A window that contains a display of locations in the current list. A list is a set
of measurement definitions. You can open only one List window, and the List
window cannot be split into panes.
load file
When you load a list into a data collector, Emonitor first creates a load file
from the list. The load file contains all the measurement definitions in the list,
in a format that can be loaded into the data collector. Emonitor can create load
files ahead of time from Quickload lists.
location
A location can be a physical point in a plant, in an area, on an equipment train,
or on a machine. For vibration measurements, a location is a combination of a
physical point and a direction for the measurement. Each location is attached
to an item in the Hierarchy Tree.
low pass filter
A low pass filter excludes frequencies above a defined frequency. It allows, or
passes, frequencies below the define frequency. It is useful as an anti-aliasing
filter.
magnitude alarm
An alarm that defines the safe operating boundary for magnitude data from a
piece of equipment or a process. Magnitude data can be overall vibration,
temperature, operating speed, or any other process measurement.
magnitude measurement
Single value representing the total energy of a measurement. For example, a
vibration magnitude represents the total energy in a vibration spectrum.
Trends of magnitude readings are typically used to predict when a machine or
process could exceed safe operating conditions.
Purpose List type
Everyday data collection Scheduled
In-depth assessment Diagnostic
One-time collection Temporary