User's Manual

Table Of Contents
Option Description
Tach Trigger Collect data with the once-per-revolution pulse from a tachometer. Use the Set
Percent option to set the percent of waveform to collect before the trigger
event. Enter 0 to put the trigger event at the start of the time window. Enter 50
percent to start the trigger in the center of the time window. The analyzer
ignores the Trigger Level variable.
Note
When you select this option for Cascade data, a Set Tach Start option is available
to set how the trigger is applied when you collect a spectra. Select All to have
the tachometer pulse trigger start of each the spectral collection. Pre-triggering
is permitted. Select First to have the tachometer pulse trigger the first collected
spectrum. All subsequent spectra are collected without using a tachometer
pulse as a trigger. Pre-triggering is not permitted.
Level Trigger Collect data at the specified amplitude on the rising positive edge or falling
negative edge of the waveform. The analyzer uses the same units as the
waveform. Specify a value between -2540 and 2540. Similar to the Tach Trigger,
the Set Percent option is available. If you have more than one input set up, you
can set the channel use for level triggering by pressing F12 Trigger Input.
RPM Trigger Collect data when the RPM drops below the level (High RPM Level) or when the
RPM is above the level (Low RPM Level). The range is between 0 and 10,000
RPM. Similar to the Tach Trigger, the Set Percent option is available.
6.8 Collecting data using an Analysis Expert
The Analysis Experts let you collect data for common troubleshooting tests, including bump
tests, PeakVue, coast down, speed detection, order tracking, orbit plots, and cross
channel. Each Analysis Expert has a predefined set of data collection parameters that you
can use for most situations. See Section 6.8.1 for when to use each Analysis Expert.
Help text in each Analysis Expert
Each Analysis Expert has help text that guides you through the measurement. You can
disable the help text. See Section 6.8.2. If you disable the help text, measurements begin
automatically when you select an Analysis Expert.
Routes and jobs
If you open Analyze from a route measurement point, even if you did not collect data, the
Analysis Expert uses the route setup information from the measurement point to perform a
customized acquisition.
Analyze and Advanced Analyze
105
DRAFT