Topcon GTS-823A - Manual (Page 21)

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1 NOMENCLATURE AND FUNCTIONS
13) Tracking Indicator
A man who is staying on line with the direction of GTS-820A series or automatic tracking status by
emitted LED light (orange color) from GTS-820A series.
• Operation
Pressing [F3] key on screen three functions Tracking Indicator. The tracking indicator status will be
changed according to the type of auto tracking mode and its conditions. A man from the prism side can
recognize the status of instrument.
When angle measuring value turns stable during tracking still object, the tracking indicator changes
from quick continuous flashing to quick intermittent flashing. So you can decide from the sign of flashing
for recording data timing at one person surveying.
Meaning of Tracking Indicator ON or Flashing
l The function of the Tracking Indicator will be used as a guide to know the status of GTS-820A
series from the prism side. This is not a function to determine precise collimating for measuring.
l The quality of its results will depend on the weather conditions and the use's eyesight.
l Sometimes happens difficulty of seeing the tracking indicator because too much bright of the beam
for tracking.
l Using Tracking Indicator mode will result shorter in reduced time out of the battery.
Tracking Indicator Tracking status of instrument
Continuous ON Wait status
Slow flashing Manual mode
Quick continuous flashing
In case angle measuring value is instable during auto tracking
mode.
Quick intermittent flashing
In case angle measuring value is stable during auto tracking
mode.
OFF ON