David White LT8-300LTU, Owner'S Manual

Page: 5 / 12

-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. Sighting notches
3. Eyepiece
4. Focusing Knob
5. Instrument level vials (2)
6. Horizontal circle
7. Horizontal circle lock
8.
Horizontal vernier
9. Horizontal clamp
10. Horizontal tangent
11. Vertical clamp
12. Vertical tangent circle
13. Shifting center
14. Four leveling screws
15. 5/8-11 thread base
16. Laser plummet
17. Plate level vial
TECHNICAL DATA
LT8-300LTU
RANGE:
Up to 400 ft (120 m)
ACCURACY:
within 3⁄16 in at 150 ft
(5 mm at 45 m)
TELESCOPE
Length
8-1/2 in (216 mm)
Minimum focus 6 ft (1.8 m)
Aperture
1.257 in (32 mm)
Power
26X
Field of view
1' 9" @ 100 ft
(54 cm @ 30 m)
No. of lenses 8
Stadia Ratio 1:100
HORIZONTAL CIRCLE
Graduation
diameter
4-5/8 in (117 mm)
Graduations Each 1°
Numbers Each 10°, 0-90-0°
LT8-300LTU
Vernier Double direct to 5
min.
CENTER
Type Wide-stance dual
row ball bearings
LEVEL VIAL-TELESCOPE
Accuracy 120 sec.
per 2 mm
PLATE VIAL
Accuracy 360 sec.
per 2.5mm
TRIPOD
Type Use a heavy-duty
5/8-11 tripod