LaserAce® Pocket Series
Issue 1.0
© Copyright 1999-2008 Measurement Devices Limited
Page
28
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LAST HIT
mode instructs the laser to return the last detectable hit in a multiple hit scenario. This mode is
intended to help range through a limited type of single obstructions, such as wire fencing or glass. It is also a
requirement that the distance between the initial obstruction and the ultimate target has to be several metres in
order for a valid range to be calculated.
LAST HIT
mode
cannot
be used with reflective targets or prisms nor used to calculate ranges to objects which
have numerous obstructions in their path ie scrub, trees, brush, double glazing, etc.
/ BRUSH FILTER
ACTIVE MODE/ BRUSH FILTER
mode
instructs the laser to only operate to
active (reflective) targets. The
recommended target is a piece of 3M
reflective foil (150mm x 150mm/6" x 6"
at 100m range). The laser is
NOT
to be
used to prisms in this mode as the signal
returned may be too strong and could
lead to errors.
This mode is provided to enable the
laser to measure through obstructions
(scrub, tree, brush) to the required point
where the target has been positioned.
The laser can operate through relatively
dense obstructions but must be able to
see at least part of the target.