Basic Operation
16
Turn-round function
The turn-round key on RC-3R is used to have the total station search or automatically track RC-
3R (prism).
In the auto tracking mode, RC-3R and the total station are ready for optical communications.
Turn-round function is useful for auto-tracking when you start working or when the auto-tracking is
interrupted by any reason.
For increasing efficiency, keep the auto-tracking status when you move to another measurement
point.
1
Turn on the total station and execute the [External Link].
2
Aim the RC-3R light emitter at the total station.
3
Turn On the RC-3R by pressing the power switch.
4
Press the [turn-round] key on RC-3R.
Total station starts searching and ends in the tracking mode where it is communicable with
this system.
Important
• RC-3R should be kept aiming so that the total station always stays within the
above range of laser beam emission until the turn-round motions is completed.
If the aiming is out of above range while RC-3R is in turn-round motions, the turn-
round could not be completed.
• At greater distances, the laser light at the edge of the emitting range (angle) will
be weaker; therefore, the RC-3R must be aimed correctly.
Note
• The settings and conditions of communication are prerequisites for the optical
communications to take place between the total station and RC-3R.
Note
• Total station must be kept apart from reflecting planes such as glass
and white walls. Reflected light may prevent it from correct prism
searching and from auto tracking. In this case, change the power mode
of RC-3R to the low power mode to decrease the output of laser beam.
To change the power mode, see “Low Power mode of Laser Beam” on
page 17.
• Ensure that RC-3R remains as motionless as possible when the total
station is in turn-round motions. Total station otherwise may not be able
to search prism correctly, requiring extra time for the task.
• The RC-3R must be aimed so as to capture the total station within a
range of ± 35° in the vertical and horizontal direction during
communicating. (Refer to “Light detecting range” section.)
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