Topcon GTS-823A - Manual (Page 20)

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1 NOMENCLATURE AND FUNCTIONS
9) Reticle illumination (OFF/Low/Middle/High)
Press the [F6] key to get to Screen 2 on the display. Press the [F4] key to turn the reticle illumination
ON. Continuing to press [F4] will change the intensity options.
10) View free memory
The amount of free memory for the card or internal memory can be displayed.
Press the [F6] key to get to Screen 2 on the display.
Press the [F5] key to view free memory.
The card memory icon (top left side of the display) shows the size of the card and the amount of free
memory. The second icon shows the amount of free internal memory.
See Chapter 6 “MEMORY MANAGE MODES”, for further options and instructions.
11) 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.
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.
12) 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 .
The received return signal level is displayed with bar graph as follows.
Refer to Chapter 10 “SETTING THE PRISM CONSTANT VALUE” and Chapter 11 “SETTING
ATMOSPHERIC CORRECTION”, for further instructions.
Low OFF Middle High
Internal Memory 1882KByte
Card Memory 315KByte 512KB
No light acceptance Minimum quantity level Maximum quantity level