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 (2σ)
Altitude positioning 6 mm (2σ)
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) =
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