Topcon RC-2W, Инструкция по эксплуатации, Страница: 19 / 28

Basic Operation
17
Tracking Sensitivity of total station
(Only for GTS-800A/810A)
When executing turn-around operations at separation distances of 100 m or more from the total
station, the manufacturer recommends setting the tracking sensitivity of the total station to high
(H) in order to make operations more consistent.
On the low (L) and medium (M) settings, distance and weather conditions can increase the time
required for turn-around operations, and under certain adverse conditions total station operations
might even be impossible.
Low Power mode of Laser Beam
When the Total Station performs a turn-around function at a distance of approximately 10 m from
the RC-2RW, strong re
fl ections of the pulsed laser diode (PLD) emission can prevent the Total
Station from searching the prism correctly. In this case, switch the laser to low-power mode to
reduce the intensity of such re
fl ections.
In low-power mode, the range of the turn-round function is shorter than in normal-power mode.
To change the power mode
Turn the power ON while holding down the [ESC] key.
A buzzer will sound indicating that the RC-2RW is in low-power mode.
To return to normal-power mode, turn the power OFF, wait several seconds, and then turn the
power ON again.
Reference : Turn-round motions:
When the turn-around key on the RC-2RW is pressed, the pulsed laser diode (PLD) in the emitter
produces a laser beam with a ± 5° cone pattern (Refer to “Light emitting angle” on page 14”.)
The RC-2H component of the Total Station has photo detectors on all four sides (front, rear, right
and left), allowing laser beams to be detected in any orientation. This detection ability extends to
approximately ± 30° in the vertical direction (refer to “Light detecting range” on page 15.)
Upon detecting laser emissions, the Total Station aligns toward the RC-2RW.
After horizontal alignment, the telescope is scanned vertically in order to target the prism and
initiate auto tracking.
Under certain conditions, the time required for communications can increase to the point
that turn-around operations require a long time to complete, and under certain
circumstances such operations might not even be completed properly. The following
conditions can adversely affect operation:
1) When units are used for communication over long distances or under poor atmospheric
and weather conditions (e.g., in strong direct sunlight; heat refraction such as occurs
near road surfaces and building surfaces on hot days; rain; fog, etc.)
2) When the aim of the RC-2RW is set incorrectly (refer to “Light emitting angle” on page
14.)
3) When the installation position of the prism and RC-2RW are separated (refer to
“Minimum Distance for Optical Communication” on page 18.)
4) When communication channel settings, or other settings, of the total station and RC-
2RW are not matched or are set incorrectly (refer to “Table of item to be set” on page 13
and “Setting Mode” on page 19.)
5) When the total station is located in front of or to the side of glass or some other re fl ective
surface.
6) When, during turn-around operations, a person, car, or other object obstructs the light
path between the total station and the RC-2RW.
7) When the units are used over long distances, the RC-2RW is set to low-power mode
(“Low Power mode of Laser Beam” on page 17.)
8) When the dip switch settings on the RC-2RW are set incorrectly (refer to “Setting Mode”
on page 19.)
9) When the battery status display on the total station is fl ashing (low battery power)