Visual Track Parameter Setup
Mode l8500C/8500C+ Operators Manual
6-3
Track parameters may also be modified by pressing
SETUP
, which in turn displays the Track Setup
screen (Figu re6-2). See the explanation of th
SETUP
key in Section 4.2.3.4 “SETUP Key” on
page 4-7 for more information on Setup screens.
Figure 6-2. Track Setup Screen
Use the Arro wkeys to select the field whose contents are to be modified, and the
<CHANGE
soft key
or the numeric keypad to effect the desired changes. The
ENTER
soft key saves the changes and
resumes operation in the Track mode. The
RESTORE
soft key restores to all fields the values that were
set by the most recent
ENTER
.
Once the Track Setup screen parameters have been modified, you may alternately press
TRAC
to save
the changes and return to the Track mode, or
START
to save the changes and begin the track
procedure. In effect, both of these keys execute an implicit
ENTER
before performing their respective
functions.
The rest of this section explains in greater detail the various Track Setup screen fields.
6.3.1 Number of Blades
The number of blades on the target rotor system is automatically set in the Balance mode when a chart
is selected. Use the numeric keypad to change this value, if required.
The number of blades may be changed through the Track Mode Start-up screen. Use the
MORE
soft
key to increase the displayed value, and th
FEWER
soft key to decrease it.
The number of blades that can be entered ranges from two to sixteen.
6.3.2 Track Type
Visual tracking may be performed in either
normal
or
surround
modes. Normal mode tracking causes
the Strobex to illuminate each tip target once per revolution. You can then ascertain which blades are
out of track by observing the relative alignment of the images. Surround mode tracking modulates the
Strobex trigger so that the trailing target, that is, the one farthest away from the master blade in th
order of rotation, appears twice, once at either end of the group of images. Illuminating the trailing
target in this way provides a line of reference so that the exact blade tip path plane may be mor
accurately gauged.
The track type may be changed by selecting the type in the Track Setup screen and pressing th
<CHANGE>
soft key.
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