Crown CT44043 Original Instructions Manual page 2

I. Technical Data
Technical Data / Mode
Telescope
Magnification
Clear objective aperture
Field of view
Shortest focusing distance
Multiplication factor
Additive factor
Working range
Setting accuracy
Sensitivity of bubble
Circle graduation
Standard deviation for 1Km double-run leveling
Instrument N/W
Centre size of tripod
Outside Structure
CT44043
1.Sphericbase plate
2.circle
3.Eyepiece
4.Eyepiece cover
5.Objective lens
6.Focusing knob
7.Horizontal drive
8.Leveling screw
open
9.Optical peep sight
10.Penta Prism
11.Cirular Bubble
turn
12.Horizontal circle
Reference Mark
CT44043 CT44044
erect erect
32X 32X
40mm 40mm
' '
1 0 30 1 0 30
0.5m 0.5m
100 100
0 0
±12" ±12"
±0.3" ±0.3"
' '
8 /2mm 8 /2mm
1 0 or 1gon 1 0 or 1gon
1.0mm 1.0mm
1.3kg 1.3kg
M16 or 5/8" M16 or 5/8"
CT44044
1.Sphericbase plate
2.circle
3.Eyepiece
4.Eyepiece cover
5.Objective lens
6.Focusing knob
7.Horizontal drive
8.Leveling screw
open
9.Optical peep sight
10.Penta Prism
11.Cirular Bubble
turn
12.Horizontal circle
Reference Mark
II. Using Method
1.Setting up
(1)Adjust the tripod to horizontal level,
tighten screw A.(Fig.1)
(2)Adjust the tripod roughly horizontal,
fix it to ground.(Fig.2)
(3)Set the instrument on the tripod head B,
and tighten it.(Fig.3)
(4)Turn footscrews and centre the bubble.(Fig.4)
2.Pointing and focusing
(1)Through the optical sight, point it to the staff.
(2)Turn the focusing knob to set cross hair clear.
(3)Turn the knob until the staff is clear.
(4)Adjust the horizontal drive to make
the staff at the centre.
Fig.1
Tripod shoe
Fig. 2
Fig.3
Fig.4
English
2