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Electronic Copy of LTI’s UltraLyte User’s Manual – 7
th
Edition June 1998
49
Second, the manner in which you stand and the
manner in which you hold the instrument both affect
the test measurements. For exact readings, carefully
hold the instrument so it is directly over the middle of
the X.
Fixed Distance Check
The fixed distance test requires only one target. For
uniformity, it should be 175 feet from the shooting
mark. To ensure the distance is accurate, use a
metal tape to measure it. (If there is insufficient
space available, that specific distance is not crucial.
However, the distance between the target and the
shooting mark must be a multiple of one foot; a
fraction of a foot will not do.)
175 feet
For absolute accuracy, the instrument
should be directly over the shooting mark.
The test procedure is as follows:
1. Stand on the shooting mark and aim the
UltraLyte at the target. Squeeze and release the
trigger.
2. Check the back panel screen. The speed
reading should be zero. (A reading of zero
verifies the timing accuracy of the instrument,
and is identical in nature to an accurate velocity
reading of a vehicle moving at
any
speed.) The
distance reading should be 174, 175, or 176.
For Internal Use Only. Not for Distribution.
Summary of Contents for UltraLyte
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