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NSTRUMENT
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ONFIDENCE
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HECK
Electronic Copy of LTI’s UltraLyte User’s Manual – 7
th
Edition June 1998
50
Delta Distance Check
The delta distance check requires two targets. For
uniformity, the first target should be 150 feet from
the shooting mark, and the second should be 175
feet from the mark. To ensure accurate distances,
use a metal tape to measure them. If there is
insufficient space available, those specific distances
are not crucial. However, the distance between the
two targets and the distances from the targets to the
shooting mark must be multiples of 1 foot.
One way to get the elements positioned is to first
install the farther target. Then measure 175 feet to
the shooting point and mark the spot. Finally,
measure from the shooting mark 150 feet to the
second target. Mark that spot and install that target.
175 feet
150 feet
For absolute accuracy, the instrument
should be directly over the shooting mark.
To conduct the test, stand on the shooting mark and
follow the procedure on the next page.
Note that, for display purposes, each measurement
is rounded to whole feet or tenths of meters. The
distance difference, however, is calculated and
displayed in tenths of feet or in hundredths of
meters.
For Internal Use Only. Not for Distribution.
Summary of Contents for UltraLyte
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