2 PREPARATION FOR MEASUREMENT

2.6 Vertical and Horizontal Angle Tilt Correction

When the tilt sensors are activated, automatic correction of vertical and horizontal angle for mislevelment is displayed.

To ensure a precise angle measurement, tilt sensors must be turned on. The display can also be used to fine level the instrument. If the (TILT OVER) display appears the instrument is out of automatic compensation range and must be leveled manually.

Zenith

Zenith

Standing axis

Standing axis

 

 

 

 

Inclination of the standing

 

 

 

 

 

 

 

 

 

 

axis in the Y direction

 

 

 

 

 

 

Inclination of the standing axis in the X direction

Horizontal

Trunnion axis

V

W

X

S

T

U

P

Q

R

O

D

lGTS-820A series compensates both the vertical angle and the horizontal angle readings due to inclination of the standing axis in the X and Y directions.

lFor more information about dual axis compensation, see Chapter “APPENDIX” “Dual Axis Compensation”.

When the instrument tilted over correction range.

Rotate the leveling screws and level the instrument.

After leveling (when each axis is within ±1'30"), the display returns to the previous mode automatically.

X,Y tilt correction range : within ±4'

X:

Y:

X:+0°00'00"

Y:+0°00'00"

lThe display of Vertical or Horizontal angle is unstable when instrument is on an unstable stage or a windy day. You can turn off the auto tilt correction function of V/H angle in this case. To set TILT correction mode ON/OFF, refer to next page or Chapter 8 “PARAMETERS SETTING MODE”.

2-6

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Topcon GTS-823A, GTS-825A, GTS-822A instruction manual Vertical and Horizontal Angle Tilt Correction, +00000
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GTS-822A, GTS-825A, GTS-821A, GTS-822A, GTS-823A, GTS-825A, GTS-823A specifications

Topcon's GTS series of total stations, including the GTS-821A, GTS-822A, GTS-823A, and GTS-825A, are known for their robust features and exceptional precision, catering to the needs of surveying and construction professionals. These instruments blend advanced technology with user-friendly interfaces to enhance productivity in the field.

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