Humidity
Type Protection
All instruments Max 95 % non condensing
T
he effects of condensation are to be effectively
counteracted by periodically drying out the instru-
ment.
Type Additive
Cons
tant [mm]
ATR SpeedSearch
Standard prism,
GPR1
0.0 yes yes
Mini prism,
GMP101
+17.5 yes yes
360° prism,
GRZ4 / 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
There are no special prisms required for ATR or for SpeedSearch.
Type Description
Working range 5 m to 150 m (15 ft to 500 ft)
Position accuracy 5 cm at 100 m (1.97" at 330 ft)
The following automatic corrections are made:
•
Line o
f sight error
•
Tilting axis error
•
Earth curvature
•
Circle eccentricity
•
Compensator index error
•
Vertical index error
•
Standing axis tilt
•
Refraction
•
ATR zero point error
7.12 Scale Correction
By entering a scale correction, reductions proportional to distance can be taken
in
to account.
•
Atmospheric correction.
•
Reduction to mean sea level.
•
Projection distortion.
The slope distance displayed is correct if the scale correction in ppm, mm/km,
which has b
een entered corresponds to the atmospheric conditions prevailing
at the time of the measurement.
Reflectors
Electronic Guide Light
E
GL
Automatic corrections
Use of scale correc-
t
ion
Atmospheric correc-
t
ion DD1
74 Technical Data
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