Standard deviation
ISO 17123-4
Measure time, typ-
ical [s]
Measure time,
maximum [s]
2 mm
3
12
Object in shade, sky overcast. Beam interruptions, severe heat shimmer and
moving objects within the beam path can result in deviations of the specified
accuracy.
Type
Description
Type
Coaxial, visible red laser
Carrier wave
658 nm
Measuring system
System Analyzer Basis 100–150 MHz
Distance [m]
Laser dot size, approximately [mm]
at 30
7 × 10
at 50
8 × 20
7.4
Automatic Target Aiming (ATR)
Reflector
Range (Target Aiming)
Range (Target Locking)
[m]
[ft]
[m]
[ft]
All prisms
(GPR1, GRZ4,
GRZ122, GRZ101,
GMP101)
80
260
80
260
Reflector tape
60 mm × 60 mm
45
150
not qualified
☞
The maximum range can be restricted by poorer conditions, for
example rain.
Shortest measuring distance: 360° prism (Target aiming):
1.5 m
Shortest measuring distance: 360° prism (Target locking):
5 m
Type
Accuracy
ATR angle accuracy Hz, V (std. dev. ISO 17123-3)
1" (0.3 mgon)
Direction of prism movement
Tangential
Radial
Prism Lock only
14 m/s at 20 m
25 m/s
Prism Lock with
Measure Mode
Con-
tinuous with lock
6 m/s at 20 m
6 m/s
☞
A tangential movement means the prism is passing by the instrument
at the specified distance.
A radial movement means the prism is moving away from or towards
the instrument in the line of sight direction.
Accuracy
Characteristics
Laser dot size
Range of tar-
get aiming/
target locking
ATR accuracy with the
GPR1 prism
Maximum prism speed
54
Technical Data