Topcon AT-G4 - Page 13

OPTIONAL ACCESSORIES
1. Aluminum Tripod, Type E
T he Type E Aluminum Tripod has a smooth surface finish
flat t r ip od head which measures 145mm diagonally, with
a 56mm diameter bore. The extension legs are adjustable
from 0.98 to 1.65 meter in length and have an unique
fastening system which requires minimum adjustments
and no need to loosen or tighten for each set-up.
Furthermore, the extension legs have greater stability with
a special section shape, while heavy-duty cast shoes with
large spurs allow easier and firmer planting of th e tripod.
Fo r maximum visibility the trip od is a colorful yellow and
silver
combin ation.
2. Aluminum Tripod, Dome Head
The dome head a luminum tripod is, for all practical
purpose, identical
to the Type E aluminum tripod but in
place of the flat tripod head has a dome tripod head with
a 150mm radius, which greatly speeds up instrument set·
up, wh en used with the AT -G Series Au to-Le ve ls which
have a corresponding base plate.
3. Plump bob set
19
SPECIFICATIONS
L
Telescope
Length
Magnificat ion
Objective lens
Re lative brightness
Fi eld of view
Re solving Power
M inimum focus
St
adia constant
St adia ratio
r-
Circ ular Level
Se nsit i vity
Aut o matic Leve.J in g
Se tting accuracy
c
ompe ns ating range
--
Ac e uracy in 1 Km
doub le run leveling
f-
Hor
izontal Circle
~ W:gh1
Instrument
iameter
inimum division
Plastic earring case
AT - G4
19 2m m
26X
30mm
1 .3
1" 30 '
3.5"
0.5m
0
100
s· / 2mm
± 0.3
± 15'
± 2.0 mm
117mm
1"
(1g)
1.6 kgs
1.3 kgs
20
~
A
~
G6
1 93mm
24X
3
I
Omm I
1 .6
1 30 '
4.o ·
0.5m
0
100
8' / 2mm
±.0.3"
± 15 '
± 2. 0mm
117mm
1 •
(1 g)
1.6 kgs
1.3 kgs