IF the
is
THEN
green
power is on.
Link LED
off
no radio link to field controller.
red
radio link to field controller.
Data Transfer
LED
off
no data transfer to/from field control-
ler.
green or green flashing
data transfer to/from field controller.
Mode LED
off
data mode.
red
configuration mode.
4.11
Guidelines for Correct Results
002410_002
When measurements are being made using the red laser EDM, the results can be influenced by
objects passing between the EDM and the intended target surface. This occurs because reflector-
less measurements are made to the first surface returning sufficient energy to allow the meas-
urement to take place. For example, if the intended target surface is the surface of a building,
but a vehicle passes between the EDM and the target surface as the measurement is triggered,
the measurement may be made to the side of the vehicle. The result is the distance to the vehi-
cle, not to the surface of the building.
If using the long range measurement mode (> 1000 m, > 3300 ft) to prisms, and an object
passes within 30 m of the EDM as the measurement is triggered, the distance measurement may
be similarly effected due to the strength of the laser signal.
Very short distances can also be measured reflectorless in Prism mode to well reflecting natural
targets. The distances are corrected with the additive constant defined for the active reflector.
WARNING
Due to laser safety regulations and measuring accuracy, using the Long Range Reflectorless EDM
is only allowed to prisms that are more than 1000m (3300ft) away.
Accurate measurements to prisms should be made in Prism mode.
When a distance measurement is triggered, the EDM measures to the object which is in the
beam path at that moment. If a temporary obstruction, for example a passing vehicle, heavy
rain, fog or snow is between the instrument and the point to be measured, the EDM may meas-
ure to the obstruction.
Do not measure with two instruments to the same target simultaneously to avoid getting mixed
return signals.
Instruments equipped with an AiM sensor permit automatic angle and distance measurements to
prisms. The prism is sighted with the optical sight. After initiating a distance measurement, the
instrument sights the prism centre automatically. Vertical and horizontal angles and the distance
are measured to the centre of the prism. The TRack mode enables the instrument to follow a
moving prism.
Distance measurement
☞
☞
☞
☞
AiM/TRack
38
Operation
