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dataPAC User’s Guide
Chapter 4 - Off Route Analysis with the dataPAC
Orders Based/Orders Track
The dataPAC 1500 version 4 and 5 software supports “Order Normalized” measurements.
In general, these measurements require a reference input in order to measure and track the
machine speed during the measurement. There are a lot more details and some limitations
that are important to understanding dataPAC's “Order Normalized” support. See “Setting
Up and Collecting Off Route Orders Measurements” on page 121. Previous dataPAC 1500
software versions do not include support for “Order Normalized” measurements. The
dataPAC 1250 does not support this function.
Machine Speed Softkey
The “set machine speed” ability of the Data Collection application has also been expanded
in dataPAC 1500 versions 4 and 5. The “Machine Speed” softkey <F3> allows you to
change the machine speed of any point. When you select “Machine Speed” from within the
Data Collection application you are presented with a menu. The menu has three options:
Manual Entry, Tachometer, and Spectra.
z
Select Manual Entry to key in the new machine speed manually.
z
Select Tachometer to measure the new machine speed with a tachometer.
z
The Spectra menu option provides some ability to measure the machine speed without
using a tachometer accessory. Selecting Spectra causes an intermediate/temporary
spectra measurement to be taken and displayed. The “Harmonic” style cursor is
displayed on the spectrum. With the Harmonic cursor displayed, the “Set Speed”
softkey can be used to set the machine speed according to the cursor location. This
feature was not available as described with prior dataPAC 1500 software versions.
Balancing Application
In the Balancing application there is some ability to measure the machine speed with the
strobe light instead of the reference input. See “One Plane Balancing with a Strobe Light”
on page 165.
Strobe Light
You can drive a strobe light using the dataPAC 1250 or 1500 and the strobe accessory,
which gives you an estimate of machine speed based on visually “freezing” the rotating
equipment with the strobe. See “Driving a Strobe While Collecting an Off Route Spectrum”
on page 117 for more information.
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