Geo Fennel Electronic Digital Theodolites FET 405K/ FET 420K / FET 110
FET 405K / 420K FET 110
A range of versatile easy to use electronic theodolites to suit all applications from construction to surveying. Large illuminated LCD displays for optimum readability – flexible, reliable, affordable.
The FET 405K and FET 420K are equipped with a two-axes compensator.
2 large easy-to-read LCD‘s
Simultaneous reading of horizontal and vertical circle
Illumination of display and field of view
Clockwise / anti-clockwise horizontal angle reading
„0“ set or hold of horizontal circle at any desired position
„V“ circle reading angle gon/ degrees or % of slope
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Technical Data |
FET 420K |
FET 405K |
FET 110 |
|
Telescope |
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Magnification |
30X |
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Clear objective aperture |
45 mm |
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Shortest focussing distance |
1,4 m. |
1,3 m. |
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Angle measurement |
incremental |
|
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Accuracy (DIN 18723) |
4 mgon (20”) |
1 mgon (5”) |
2 mgon (10”) |
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Minimum reading |
2 mgon (10”) |
0,5 mgon (2”) |
1 mgon (5”) |
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Compensator |
Dual Axis |
|
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Measuring units |
400 gon/360o/mil |
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Display(s) |
2xLCD |
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Optical plummet |
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Magnification |
3X |
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Focussing range |
0,5 to ¥ |
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Vials |
|
Plate level |
30”/2 mm |
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Circular level |
8’/2 mm |
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Power supply |
4x1,5V AA alkaline batteries |
NiMH rechargeable battery, charger |
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Operating time |
15h |
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Temperature range |
-20oC to +45 oC |
-20oC to +50 oC |
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Tribrach |
Detachable |
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Weight |
4 kg |
4,8 kg |
