FPM Case for FG-L30 Nadir and Zenith Plummet
The optical nadir and zenith plummet FG-L30 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 leveled using the 20“ reversion bubble level. The FG-L30 can be put on any LEICA/WILD type tribrach with forced centering mechanism.
- Exact positioning, nadir and zenith plumbing
- Transferring reference points upwards or downwards
- Integration of reference points into the plumb line
- Verification of deviations from the plumb line
| Accuracy | Mean error | ± 1 mm / 30 m |
| Reversion bubble level | 20" / 2 mm | |
| Telescope | Image | Upside-down and reversed |
| Magnification | 9x | |
| Shortest target distance | 0.4 m | |
| Objective aperture | 20 mm | |
| Temperature | Operating range | -25°C to +45°C |
| Size | Instrument dimensions | 140 × 190 × 120 mm |
| Weight | FG-L30 | 2.1 kg |
| Tribrach FG-DF IX | 0.75 kg | |
| Tribrach FG-DF XI | 0.7 kg | |
| Conversion kit | 0.2 kg | |
| FG-L30 with carrying case | 4.2 kg |
Brand: FPM Plummets |
Code: FG-109060
Supplier Code: M109060:030.26
Brand: FPM Plummets |
Code: FG-109060
Supplier Code: M109060:030.26
At a glance
The optical nadir and zenith plummet FG-L30 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 leveled using the 20“ reversion bubble level. The FG-L30 can be put on any LEICA/WILD type tribrach with forced centering mechanism.
- Exact positioning, nadir and zenith plumbing
- Transferring reference points upwards or downwards
- Integration of reference points into the plumb line
- Verification of deviations from the plumb line

