David White L6-20 User Manual

-5-
FEATURES
The numbering of the product features
shown refers to the illustration of the
measuring tool on the graphic page.
1. Telescope objective lens
2. Eyepiece
3. Focusing knobs
4. Instrument level vial
5. Horizontal graduated circle
6. Horizontal vernier
7. Horizontal clamp
8. Horizontal tangent
9. Telescope lock lever
10. Vertical arc
11. Vertical arc pointer
12. Vertical clamp
13. Vertical tangent
14. Three leveling screws
15. 5/8-11 threaded base
16. Horizontal vernier
17. Bubble Level Adjustment Screw
TECHNICAL DATA
L6-20 LT6-900
Accuracy
1/4 in at 100 ft
(6mm at 30m)
1/4 in at 100 ft
(6mm at 30m)
Range
Up to 200 ft (60m) Up to 200 ft (60m)
TELESCOPE
Magnification 22-power 22-power
Length 10.5” (26.5 cm) 10.5” (26.5 cm)
Minimum Focus 4 ft (1.2 m) 4 ft (1.2 m)
Aperture 0.75" (19mm) 0.75" (19 mm)
Field of View 2' @ 100' (0.6 m @ 30 m) 2' @ 100' (0.6 m @ 30 m)
No. of Lenses 6 6
HORIZONTAL CIRCLE
Graduation Diameter 3.62" (92 mm) 3.62" (92 mm)
Graduations Each 1° Each 1°
Numbers Each 10°, 0-90-0° Each 10°, 0-90-0°
Vernier Double direct to 15 min. Double direct to 15 min.
VERTICAL ARC
Graduations Each 1°
Numbers Each 10°, 45-0-45°
CENTER Planar bearing Planar bearing
LEVEL VIAL 10 min. per 2 mm 10 min. per 2 mm
WEIGHT (Instrument) 3.25 lb (1.5 kg) 4.5 lb (2.0 kg)
TRIPOD 5/8-11 thread 5/8-11 thread

David White L6-20 Specifications

General

Brand	David White
Model	L6-20
Category	Measuring Instruments
Language	English