THEODOLITE ET-02/05/10
It employs the Abosolute Encoding measurement method, which enables it free of manual initialization (ie. it can work without rotating the lens first.) and restores the previous measured data even after power off. |
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ET-02/ET-02L |
ET-05/ET-05L |
ET-10 |
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TELESCOPE |
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image |
erect |
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magnification |
30X |
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effective aperture |
45mm |
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resovling power |
3” |
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field of view |
1°30’ |
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minimum focusing distance |
1.4m |
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stadia ratio |
100 |
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stadia constant |
0 |
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tube length |
157mm |
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ANGLE MEASUREMENT |
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reading system |
absolute encoding |
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diameter of circle (VHz) |
79mm |
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minimum reading |
1”/5”/10” selectable |
10” |
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accuracy |
2” |
5” |
10” |
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detection method: hor.
ver. |
dual
dual |
dual
dual |
dual
dual |
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DISPLAY |
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(LCD) display type |
2 sides |
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MEMORY |
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internal memory |
capacity for 256 pairs of H. & V. angle |
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LEVEL SENSITIVITY |
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plate vial |
30”/2mm |
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circular vial |
10’/2mm |
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COMPENSATION |
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system |
liquid-electric detection |
plate vial |
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working range |
±3’ |
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accuracy |
1” |
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OPTICAL PLUMMET |
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image |
erect |
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magnification |
3X |
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focusing range |
0.5m ~ ∞ |
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field of view |
5° |
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PHISICAL CHARACTERISTICS |
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laser pointer |
ET-02L: yes |
ET-05L: yes |
NO |
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operating temperature |
-20℃ ~ 45℃ |
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internal power supply |
Rechargeable Ni-H battery / AA battery |
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voltage |
6VDC |
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operating time |
10 hours |
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dimension |
L145 X H318 X W179mm |
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weight |
5.2kg |
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