1 NOMENCLATURE AND FUNCTIONS
1-10
10)
Set audio mode
The light acceptance quantity level (Signal level) is displayed in this mode.
When reflected light from the prism is received, a buzzer sounds. This function is good for easy
collimation when the target is difficult to find.
Press the [F1] key on screen 3 (GPT-8000A series) or [F2] key on screen 1 (GPT-8000 series).
The received return signal level is displayed with bar graph as follows.
(1) To stop the buzzer, see Chapter 8 “PARAMETERS SETTING MODE”.
(2) Also, it is possible to display the signal level in Distance Measuring Mode.
11)
Setting Temperature, Pressure, Atmospheric correction value (PPM), Prism
constant value (PSM)
The temperature, pressure, PPM, and PSM can be viewed by pressing the [F2] key on screen 3
(GPT-8000A series) or [F3] key on screen 1 (GPT-8000 series).
The received return signal level is displayed with bar graph as follows.
Refer to Chapter 10 “SETTING THE PRISM / NON-PRISM CONSTANT VALUE” and Chapter 11
“SETTING ATMOSPHERIC CORRECTION”, for further instructions.
12)
Tracking Indicator (GPT-8000A series)
A man who is staying on line with the direction of GPT-8000A series or automatic tracking status
by emitted LED light (orange color) from GPT-8000A series.
• Operation
Pressing [F3] key on the 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
• The function of the Tracking Indicator will be
used as a guide to know the status of GPT-
8000A series from the prism side. This is not a
function to determine precise collimating for
measuring.
• The quality of its results will depend on the
weather conditions and the use's eyesight.
• Sometimes happens difficulty of seeing the
tracking indicator because too much bright of
the beam for tracking.
• Using Tracking Indicator mode will result shorter
in reduced time out of the battery.
No light acceptance
Minimum quantity level
Maximum quantity leve
Tracking Indicator
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.
Summary of Contents for GPT-8000 Series
Page 89: ...5 PROGRAM MODES 5 28 ...
Page 124: ...11 SETTING ATMOSPHERIC CORRECTION 11 4 ...
