26
9. SPECIFICATIONS
Usable range
Altitude angle
±25° (0.9 to 22 m)
Difference of altitude
±10 m (22 to 100 m)
Horizontal angle
360°
Distance
0.9 to 100 m
(
"6.1 Usable Range" on page 21)
General accuracy (While measuring coordinates at 50 m)
Reproducibility
Horizontal positioning
3 mm (2
σ
)
Altitude positioning
6 mm (2
σ
)
Absolute positioning
Horizontal positioning
±5 mm
Altitude positioning
±10 mm
Angle measurement section
Method
Absolute rotary encoder method
Resolving power
1"
Inclination compensation section
Method
Hydraulic dual-axis inclination sensors
Compensation range
±6' 00"
Distance measuring section
Method
Retardation survey method (Prism distance measurement only)
Measurable range
0.9 to 100 m
*1
Update rate of distance data
20 Hz
Light source
Laser diode
Wavelength
690 nm
Laser class
Class 1 equivalent when measuring the distance
Atmospheric correction
Entry of the temperature and atmospheric pressure
(Depending on the application)
(Default factory setting : 15°C, 1013hPa)
Atmospheric correction factor (ppm)
*2
Prism constant correction
Yes
*1
: When using ATP2/ATP2S
Weather conditions for measurement: Other than bad weather, such as rain, dense fog, and
strong heat haze
*2
: Atmospheric correction factor (ppm)
The atmospheric correction value is calculated using the following formula and set into the
memory.
t : Air temperature (
°
C)
p : Pressure (hPa)
e : Water vapor pressure (hPa)
h : Relative humidity (%)
E : Saturated water vapor pressure
282.324
0.294362 p
×
1 0.003661 t
×
+
------------------------------------------
–
0.04127 e
×
1 0.003661 t
×
+
------------------------------------------
+
Atmospheric Correction Factor (ppm) =
