Geodetic
FPM FG-L30 Optical Zenith Plummet
FPM FG-L30 Optical Zenith Plummet
The optical Nadir and Zenith FG-L30 is a precision instrument for medium accuracy optical soundings in civil engineering and surveying industry. The FPM FG-L30 Optical Plummet is very easy to use and helpful to find upward and downward plumb lines over medium distances, for instance when taking measurements for high-rise building constructions, industrial buildings or mine shafts.
The instrument can be accurately levelled using the 20“ reversion bubble level. The FG-L30 can be put on any LEICA/WILD type tribrach with forced centering mechanism. Made in Germany.
| Specifications | |
| 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 | 2.2kg |
Applications:
- Construction of buildings and shafts, chimneys, bridges and steel structures
- Special tasks in industry and mining, surveying
- Monitoring measurements on structures
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