The optical zenith and nadir-Lot FG-L30 is a precision instrument for medium accuracy optical soundings in civil engineering and surveying industry.
The vertical position is adjusted by means of a built dragonfly reversion of 20 "/ 2 mm.
The units records in tribrach with forced.
Supplied in a sturdy container. The FG-L30 can be used in any tribrach with claw. Particularly useful is the combination with the optional tribrach 46-FG-DF11 with large center hole that the "test area" greatly expanded. For this the tribrach pictured stand a conversion kit is required.
Middle plumb error or accuracy: ± 1 mm / 30 m
Magnification: 9 x
Image Location: upside down, reversed
Free objective diameter: 20 mm
Minimum focus: 0.4 m
Dimensions: 140 x 90 mm
Weight: 2.2 kg
- Construction of buildings and shafts, chimneys, bridges and steel structures
- Special tasks in industry and mining, surveying
- Monitoring measurements on structures
- For exact positioning
- On and Ablotung
- Transfer of soil marks
- Instruction of points in the plumb line
- Control the deviations from the plumb line
