Technical Data Zoom90 | 51
Environmental specifi-
cations
Temperature
Protection against water, dust and sand
Humidity
Reflectors
There are no special prisms required for AiM or for Scout.
Navigation Light
(NavLight)
Automatic corrections The following automatic corrections are made:
8.9 Scale Correction
Use of scale correction By entering a scale correction, reductions proportional to distance can be taken into account.
• Atmospheric correction.
• Reduction to mean sea level.
• Projection distortion.
Atmospheric correction
D1
The slope distance displayed is correct if the scale correction in ppm, mm/km, which has been entered
corresponds to the atmospheric conditions prevailing at the time of the measurement.
The atmospheric correction includes:
• Adjustments for air pressure
• Air temperature
• Relative humidity
For highest precision distance measurements, the atmospheric correction should be determined with an
accuracy of 1 ppm. The following parameters must be redetermined:
• Air temperature to 1 °C
• Air pressure to 3 mbar
• Relative humidity to 20 %
Type Operating temperature [°C] Storage temperature [°C]
All instruments -20 to +50 -40 to +70
GeoMax SD cards -40 to +80 -40 to +80
Battery internal -20 to +55 -40 to +70
Bluetooth -30 to +60 -40 to +80
Type Protection
All instruments IP55 (IEC 60529)
Type Protection
All instruments Max 95 % non condensing
The effects of condensation are to be effectively counteracted by periodi-
cally drying out the instrument.
Type Additive Constant [mm] AiM Scout
Standard prism, ZPR100 0.0 yes yes
Mini prism, ZMP100 +17.5 yes yes
360° prism,
ZPR1 / GRZ122
+23.1 yes yes
360° Mini prism, GRZ101 +30.0 yes not recommended
Reflector tape S, M, L +34.4 yes no
Reflectorless +34.4 no no
Working range: 5 m to 150 m (15 ft to 500 ft)
Position accuracy: 5 cm at 100 m (1.97" at 330 ft)
• Line of sight error • Vertical index error
• Tilting axis error • Standing axis tilt
• Earth curvature • Refraction
• Circle eccentricity • AiM zero point error
• Compensator index error