Decatur DragonEye Compact, Руководство пользователя

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6.5.1 Differential Distance: LIDAR in English Units (MPH)
The (MPH) Differential Distances Test uses two fixed targets
separated by a precisely known distance . Using the LIDAR's range
function to determine the separation between the targets, coupled
with the internal acquisition period of the LIDAR's speed mode, the
test provides a simulated speed reading (in MPH) which should be
double the target separation measured in feet .
Use two flat targets, approximately 2 ft x 2 ft square, painted flat
white . Place the targets at precise distances from a "zero" point
where the LIDAR will be positioned . The targets should be set
at integer feet values from the LIDAR zero point and should be
approximately 25 ft apart . Recommended target distances are
50 .0 ft and 75 .0 ft from the LIDAR unit . Ensure the front end of the
LIDAR unit is positioned exactly at the zero point, using a tripod if
necessary .
On the LIDAR unit, press the Menu button then use the up/
down arrows until "Diff Distance" is displayed . Press Enter .
Carefully obtain a range reading from the first target and then
press Enter
. Carefully obtain a range reading from the second
target and then press Enter . The LIDAR will then display the
simulated speed on the rear display . The speed reading should be
/-1 MPH or twice the range separation as measured in feet .
For example, using the target distances of 50 .0 and 75 .0 ft, the
simulated speed reading should be 2 x 25 .0 = 50 MPH +/-1 MPH .
So a simulated reading of 49, 50, or 51 would pass the test . Press
Menu
to exit the Differential Distance Test and return to the
normal operating mode .
If the LIDAR does not pass the test, carefully recheck the distances
and reposition the targets and LIDAR if necessary then repeat the
test . If the unit continues to fail the test, please contact customer
service .