Astor LT-10 User manual
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1S.SPECIFICATIONS
Telescope
Length 155mm
Objective aperture 45mm
Magnification 30X
Image Erect
Field
of
view 1° 30/
Resolving power 3.5 "
Minimum focus 1.3m
Stadia ratio 100
Stadia constant 0
Electronic
angle
measurement
Method Absolutely Code
Minimum reading
Accuracy
(l)
1" / 5" / 10"
2" /
5'
/ /
10"
Diameter
of
circle 71mm
Illuminator LCD
Yes
Reticle plate
Yes
Communi-ca
tion EDM interface No
Data export
interface
Yes
- - - - -
Catalogue
1 Application
2 Nomenclature
I 3 Display and display mark
I
I 4 Operating keyboard and operating key
5 Preparative before measurement
5.1
Leveling the instrument
5.2
Power
switch
on
5.3
Battery
power
display
5.4
Change
the battery
6 Angle measurement
6.1
Measuring a
HAR
and vertical angle
6.2
Swi
tching
hor
izontal
angle
HAR
/
HAL
6.3
Setting
a
hor
i
zontal
angle
6.4
Repetition angle measurement
6.5
Measuring a percent
of
grade (
Slope
measurement)
7 Recording and outputting data
7.1
RS-232 serial communication interface
7.2 Recording measurement data
8 Memory mode
9 Function setting
9.1
Function setting
9.2
Function setting method
3
46
9.3
Time
setting
14.Error displays
10
Vertical angle 0 error and collimation error and tilt
angle compensator 0 error
11
Other function
11.1
Measuring
distance
11.2
Tilt
correction
function
11.3
Illuminate
and
the timing close
12 Check and adjustment
12.1
Check
and
adjust plate level
12.2
Check
and
adjust circular level
12.3
Check
and
adjust
vertical cross-hair
12.4
Collimation
of
the instrument sight line
12.5
Check
and
adjust optical
plummet
13
Tribrach
14
Error display
15
Specifications
16
Accessories and equipment
EOl
Vertical angle 0 position is out
of
range or set with
incorrect procedure.
E02 Tilt angle compensator 0 position is out
of
range or set
with incorrect procedure.
E03 During measuring
of
the collimation error, the measured
value measured is out
of
range.
E04 There's abnormality in internal memory system. I
E05 Reserved for adjustment
in
factory.
E06 There's abnormality
in
angle measuring system. I
E07 The level collimation or the telescope revolve too I
fast(over 4 rl
s).
E08 There's a error detected
in
angle measuring system. The
instrument should be re-powered
to
distiguish this error.
I
45
4
13. Tribrach
It is
convenient
to detach
and
attach
instrument
by
loosening
or
tightening
the
locking lever.
Detachment
a.
Tum
locking
lever
1800 in
counter
clock-wise
direction.
b.
Lift
the
instrument
up
with
one hand carrying
handle
and
another
hand
holding
the tribrach.
Attachment
a.
Match
the
instrument
base
with the correct
groove
before putting the instrument
on
the board.
b. Tighten the
locking
lever
instrument base
groove
locking lever
44
1. Application
The electronic theodolite adopts incrrmental digit angle
measurement system. The resolution
of
horizontal angle
reading and vertical angle reading
is
I"
,
5"
(0.2mgon,
lmgon
).
The angle precision
is
2"
,
5"
(0.5mgon,
lmgon
).
Meanwhile microcomputer techniques adopted
in
the
instrument realizes automatic calculation, storage, and
display. The instrument can display the readings of
horizontal angle and vertical angle simultaneously.
It
can
use with the DCH range finder made in MATO, PDA and
EDM made
in
the other factory international. Then you can
get the electric speed measurement instrument. It can
display, put down the angle, distance and coordinate data.
It
can correct the instrument error. Many measuring modes as
angle, slope etc can be fulfilled.
The electronic theodolite can be used for the control
surveying, mine, railway, and irrigation etc projects surveys
Still capable
of
topographic surveys and general projects
surveys.
5
2. Nomenclature
1
3
13
\~'\W
II
--I
r.:::s:,
l'
II/I~II
10 14
4
8
II
l~IJJ
A--,.
15
~~//
ll.V
~
11
16
'-.............
..
..
J
...
:....
JJDI
12
2 //Lc'Jl
7
1/1
II
5
,W
r/\\
6
9
::,,<°
1
A
adjustment screw optical plummet
a.
Next use the leveling screws and coincide the point
and center mark.
b.
Revolve the instrument
180
a or 200g around
the
vertical axis, and check the center mark.
If
it
is
coincided to the point, then further adjustment
is
not
required. Otherwise, repeat the adjustment.
Note:
To
move center mark, loosen adjustment screw on one
side and tighten adjustment screw
on
the other side
according to the loosened number. (Loosen: counter
clock-wise. Tighten: clock-wise. Rotate screws as little
as possible.)
43
6
I
a. number. (loosen screw: counter clock-wise. Tighten
screw: clock-wise. But rotate screws as little as
possible.)
b. After concluding the above adjustment, the
following adjustment
is
required:
6.
Adjustment
of
vertical angle.
12.5 Check and adjust optical plummet
Adjustment
is
required to make the line
of
sight
of
optical plummet telescope coincide with the vertical
axis ( as otherwise the vertical axis will not be in the
true vertical when the instrument
is
optically plumbed.)
Check
a. Coincide the center point with the center mark
of
optical plummet telescope by adjusting optical
plummet.
b. Revolve the instrument 1800
or
200g around the vertical axis
and check the center mark.
If
the point
is
properly centered in
the center.mark, adjustment
is
not required. Otherwise, adjust
in
the following manner:
Adjustment
a.
Unscrew the adjustment section cover
of
the optical
plummet telescope eyepiece, by revolving it in the
counter clock-wise direction and take it off. This
will expose four capstan adjustment screws which
should be adjusted with the accessory adjusting pin
to
shift the center mark to the point. However,
correct only
112
of
the displacement in this manner.
42
(
1)
carrying handle
(2)
handle screw
(3)
sighting collimator
(4)
vertical tangent screw and motion clamp
(5)
operating key
(6)
RS-232C communication interface
(7)
objective lens
(8)
plate level
(9)
display window
(l0)
eyepiece
(11) base plate (12) foot screw(13) focusing knob (l4)battery
(15)horizontal tangent screw and motion clamp
(16) base locking lever
3. Display and display mark
SDHDVD
~20
14:
38
90
0
00'
00"
%
m
L 00
00'
00"
gon
(ill!
Display Function Display Function
Hold
the
horizontal
SO
Slope distance
HOLD
angle
HD
Horizontal distance % Percent grade
VD
Height difference m Distance
unit:
m
VA
Vertical angle
gon
Angle unit
--
7
HAR
Horizontal angle
right
07
-03-06 Date I
SFT The second
function 14:
38
Time
REP
Repeat
the
horizontal angel (!) Auto power off
eRN Tilt correction - -
4.0perating keyboard and operating key
OIST S/ H/V
@@D
REP
REC
@)G0)
{)
@~
8
reticle adjustment screw
Adjustment
a.
Unscrew the cross-hair adjustment section cover.
b.
Find point D at a point between points
C.
B, which
should be equal to
1/4
the distance between points B
and
e,
and measured from point
C.
This is because
the parent error
of
Be
is four times
of
the real error
since the lescope has been reversed twice during
checking operation.
c. Shift the vertical cross-hair line and coincide
it
with point
D, by revolving the left and right capstan adjustment
rews. Upon completing the adjustment, repeat the
checking operation once more.
If
point
Band
e coincide
further adjustment
is
not required.
OtheIWise,
repeat
the
adjustment.
Note:
To
move vertical cross-hair, first loosen the capstan adjustment
screw, then screw the capstan adjustment screws on the other side
to
41
12.4 Collimation
of
the instrument
Collimation
is
required to make the line
of
sight
of
the
telescope perpendicular to the horizontal axis
of
the
instrument.
Check
a.
Set the instrument up with clear sights
of
abort
50
to 60
meters
of
both sides
of
the instrument.
b.
Sight point A at
approximately 50 R@
A
Sam
meter distance. W
c.
Loosen the vertical
tangent screw only
and plunge the CD W
Sam
c
telescope 180
Q7
0
around the horizontal
axis
so
that the telescope
is
pointed in the opposite
keys Functionl Function2
OSET Set horizontal angle Distance measurement
0
HOLD Hold the horizontal Repeat measurement
angle horizontal angle
-0-
Tum on
or
off
Select the second
illumination function
RlL Switch horizontal switch
SD/HDND
angle right or left display
V%
(!)
Percent grade
of
Record measurement
vertical angel data
Power switch
--_
.
_-
'-------
- -
--
- -
direction.
~
-
d.
Sight point B, at equal distance
as
point
A.
e.
Loosen the horizontal motion clamp and tangent
screw and revolve the instrument 1800 or 200gon.
Fix a sight on point A once more and tighten the
motion clamp and screw.
f.
Loosen the vertical motion clamp and tangent screw
and plunge the instrument 1800 or 200gon and fix a
sight on point C, which should coincide with the
previous point
B.
40 9
5'\
Preparative before measurement
5.1 Level the instrument
Level and center the instrument correctly to insure the
best perfonnance.
C!)
Place the tripod
First,
put
the tripod leg in the proper position and tighten
the locking screws.
@Attaching the instrument to the tripod head
Place the instrument carefully on the tripod head, and
move the instrument slowly by loosening adjusting
screw. Align the plumb bob with the point on the ground
When aligned, tighten the adjusting screw.
® Initial rough leveling the instrument with circular level
( 1 ) Use leveling screws 1,2 to move the bubble
of
the
circular level until the bubble
of
the circular level until
the bubble is now located on a line perpendicular to a
line running through the centers
of
the two leveling
screws being adjusted.
( 2 ) Revolve the leveling screw 3 to shift the bubble to
the center
of
the circular.
2
r---
0 0
I
~\-o
.
~
~
bubble
~
-=-
bubble
10
Adjustment
reticle retaining screws
eyepiece
a.
Unscrew the cross-hair adjustment section cover by
revolving it
in
the counter-clockwise direction. This
will expose four eyepiece section attachment screws.
b.
Loosen all four attachment screws slightly with the
accessory screw-driver. (while taking note
of
the
number
of
the revolutions.) Make vertical cross-hair
coincide with A by turning eyepiece and tighten the
four attachment screws.
c.
Check
if
there is displacement in horizontal
direction while point A travelling along vertical
cross-hair.
If
not, check is concluded.
39
12.3 Check and adjust vertical cross-hair
Adjustment is required
if
the vertical cross-hair
is
not in a phine perpendicUlar
to
the horizontal axis of
the telescope.(Since it must be possible to use any point
on the hair for measuring horizontal angles.)
Check
a.
Set the instrument on the tripod and carefully level
it.
b.
Sight the cross-hair on a well-defined point A on the
wall at a distance
of
at least 50 meters. (160ft )
c.
Next swing the telescope and check whether the
point travels along the length
of
the vertical cross
hair.
d.
If
the point appears to move continuously on the
vertical hair (see fig.l), the vertical cross-hair lies in
a plane perpendicular to the horizontal
axis.(adjustment
is
not required.)
e.
However
if
the point appears to be displayed from
the vertical cross-hair (see fig.2) , adjustment
is
required in the reticule plate.
38
@Further leveling the instrument with plate level
(1) Loosen horizontal motion clamp and revolve the
instrument.
By
adjusting leveling screws l,2 , the plate
level vial
is
parallel to a line running through the centers of
two leveling screws, and place the bubble in the center of
the level vial.
(2) Next, revolve the instrument 90° (lOOg) around its
vertical axis and use the remaining screw 3 to center the
level bubble once more.
(3)
Repeat the above procedure for each 90 revolution ofa
the .instrument and check whether the level bubble
is
correctly centered for all points.
@Centering the instrument with optical plummet
Adjust the eyepiece
of
the optical plummet telescope to the
user's eyesight. Move the instrument by loosening
II
. with the center mark
of
the optical plummet telescope.
. Carefully move the instrument in order to make it steady.
symbol
reticle
center
-0
@Final leveling
of
the instrument
Repeat procedure
of
®.
and check whether the level
bubble is in the center
of
the level vial. Finally tighter
adjusting screw.
12
12.2 Check and adjust vertical cross-hair
Check
Carefully level the instrument with the plate level.
If
the bubble
of
the circular level
is
centered properly at this
time, adjustment is not required. Otherwise, proceed with
the following adjustment.
Adjustment
Shift the bubble to the center
of
the level by
adjusting three capstan adjustment screws on the
bottom surface
of
the circular level, with the accessory
adjusting pin.(see diagram)
~
II
(1)
II
(2)
37
a.
Next,
revolve
the
instrument
180
0 or
200g
arOlmd
the
vertical
axis
and
check
bubble
movement
of
the
plate
level.
11
the
bubble
has
been
displaced,
then
proceed with
the
following
adjustment
Adjustment
a.
Adjust the level adjustment capstan screw with the
accessory adjusting pin and return the bubble
towards the center
of
the plate level vial. However,
correct only one-half
of
the displacement by this
method.
b.
Correct the remaining
112
amount
of
the bubble
displacement with the leveling screws.
c.
Revolve the instrument 1800 or 200g around the
vertical axis once more and check bubble movement
if
the bubble is still displaced, then repeat the
adjustment.
adjustment screws
bubble
thbrach base
36
5.2 Power switch on
CD
Pre
ss
[(!)
1, all segments
of
the display will light
on. The display shows that vertical angle should be
set to zero.
® Rotate the telescope to set the instrument to a
vertical angle reading
of
o.
@Press
[(!)
lover
2 seconds, it can be power off.
•
In
order to make sure instrument work
continuously, pay attention to battery power
display.
If
battery power is insufficient, replace
battery. Please see 5.3. Battery
power
display.
• For setting the vertical angle at 0, a datum 0 is
provided on the vertical angle scale circumference.
If
the telescope is turned and the sensor passes the
datum 0, angle measurement begins.
13
5.3 B disol
-
~
-
-
-----
-'"
1.- _
..
--
----r---J
Mark Meannings
I{ffi; Sufficient battery power
(%90-%
1
00).
ill
Effective battery power.(%50-%90).
a Effective battery power
(%10-%50).
I
C Poor battery power (O-%lO).Need
to
replace I
battery
....
' I
I"
c=
.,
I I
,""
Measurement
is
impossible. The power will be I
cut
off
in one minute.
--_
. . -- -
5.4
Change
the
batteries
For
removing
• Press the release button
of
the battery case and
hold it on.
• Pull the battery case toward you.
• Remove it out.
Installation
• Put the battery in the battery case.
• Press the release button and hold the battery case
toward the groove in the instrument.
14
12. Check
and
adjustment
-D---'
Pointers
on
adjustment
a.
Adjust the eyepiece
of
the telescope properly prior to any
checking operation which involves sighting through
the
telescope. Remember
to
focus properly, with parallax
completely eliminated.
b.
Carry out the adjustment in the order listed, as the
adjustments are dependent one upon another.
Adjustments carried out in the wrong sequence may
even nullify previous adjustments.
c.
Conclude adjustments by tightening the adjustment
screws securely ( but do not tightening them more than
necessary, as you may strip the threads, twist
off
the
screw necessary,
as
you may strip the threads, twist off
the screw'
or
place undue stress on the parts.)
d.
The attachment screws must also be tightened
sufficiently upon completion
of
adjustments.
e.
Always repeat checking operations after adjustments
are made in order to verify results.
12.1Check
and
adjust
the plate
level A
Check
(~n
a.
Place the plate level parallel
to
aline running through the
180
·
""
centers
of
two leveling
screws(e.g.
A,
B). Use these
two screws
to
place the bubble
/~
in
the center
of
the plate
level
adJuslJ1h.:nt sc
n:\\
10
co
m.
"Ct 1/2
35
-
---
-
-----
Note:
6.
Angle measurement
• The angle display is unstable when instrument is on 6.1
Measuring
a HAR
and
vertical angle
an unstable stage
or
a windy
day.
You should turn
off
Operating
the auto tilt compensation. 1.Collimate
the
first
• Tum on or
off
auto tilt compensation function, please
ta
rg
et
.
2.Press [
OSET
]
refer to "lO.funtion setting". twice ,
and
set
horizontal angel of
11.3
Illumination
and
timing close
ta
rg
etA
at
00
00'
001/
.
THE has a display and a illumination setting on the reticle. 3.Collimate
the
second target B,
and
When you Press
[FUNC]
and hold on about two seconds,
the display and the illumination setting will be open or
the
horizontal
and
closed. vertical angel
are
If
you don't operate the instrument for 20 minutes, the
power will be closed. About this function, you can
Ld~s~ayeJ.
___
reference "10.funtion setting"
Display
07-ffi.05
14:
38
~A
90°
00'
00"
~A
R 0°
00'
00"
t@!;
07-D3-05
14:
38
~A
90°
00'
00"
HAR
0°
10'
00"
t@!;
•
How
to collimate ,
(DPoint the telescope towards
the light. Tum the diopter ring
99
and adjust the diopter so that
the cross-hair is clearly
---
observed. (Tum the ring coward
you first and then backward to
~~
15
34
®Observe the target with sighting collimator. Allow a
certain space between the
collimator and yourself,
if
,
for collimating.
99
®Focus the target with
~
----.
the focusing knob.
• Note:
If
parallax
is
created
~~
between the cross-hair and
target when viewing vertically or horizontally while
looking into the telescope. Focusing is incorrect
or
diopter
adjustment
is
poor. This adversely affects precision in
measurement or survey. Elimate the parallax by carefully
focusing and diopter adjustment.
16
(DFirst fix the station pole at the measuring point.
®Level
instrument. By viewing through the telescope,
make sure the
reading"
" between two stadia lines.
®The
distance from instrument plumb bob center
to
station staff"L"
is
100 times
of
"I".L=1
OOX
1
11.2 Tilt correction function
THE
provide vertical axis incline compensator. It can
compensate the incline angle automatically.. When the
incline sensor
is
switch on, the instrument can detect the
vertical axis incline angle. When instrument incline over
the compensation range, it display "TILT".
You
should
level the instrument manually.
The
vertical axis is inchined in "X"
vertical axis
'"
~
33
11. Other function
11.1
Measuring
distance
Measuring distance
with
cross-hair is another application
of
THE. So scale
station'
pole is needed, for example
horizontal measuring
staff
and apparent distance staff.
By
viewing through the telescope, the length between upper
and under stadia hairs which multiplies
100
is the distance
from instrument center to station pole. (The length refers to
the reading from station pole between two stadia hairs.)
stadia
hairs
I
m--y
l
\tbL
__
L
__
4
L.
I
_L",,100X
l-
I
32
6.2 Switching
horizontal
angle
HAR
IHAL
Operating Display
1.Collimate
the
target
07-D3-{X5
14:
38
90
0
A.
WA
00'
00"
00
HA
R
10'
01"
@!:
07-D3-{X5
14:
38
2.Press
[R/L],
The
mode Ha
rizo
n
ta
I
WA
900
00'
00"
0
angle Right(HAR)
HA
L 359
49'
59"
switches .
to
HAL
@!:
mode.
3.Measure
the
target
in
the
same manner
as
HAR
mode.
• Every
tim
e
[R/L]
key
is
pressed,
HAR
I
HAL
mode
switches.
17
(l.3
Setting a horizontal angle
Operating
1.Turn Horizontal
tangent
screw
and
set
the
horizontal angle
required.
2.Press
[HOLD)
key
twice
and
the
horizontal angle
is
hold.
3.Collim
ate
the
ta
rg
et.
4.
Press
[HOLD)
key
again
to
stoP
.
holding
the
horizontal
angle.
Display
07~
14:
38
~A
90
0
00'
00"
HAR
30
0
00'
00"
@!:
07~
14:
38
VA
90
0
00'
00"
aA
30
0
00'
00"
R
@!:
11m
~20
14:
38
~A
90
0
00'
00"
~
R
30
0
00'
00"
@!:
18
2.Level
the
instrument
and
make
the
plate at
left, collim
ate
the
ta
rget at infinitude,
press [OSET
),
the
first line will glint
and
display "SET
F2"
.
3.
Make
the
plate at
rig
ht
and
then
collimate
the
same
target, press
[OSET),
the
first
line
will glint
and
display
"SET"
.
4. Press [OSET
),
the
instrum ent
perform
the
new
data
of
the
vertical error,
the
telescope axis
error
and
the
com
pensator 0 error,
and
.return
to
the
angle mode.
07.{)3..«)
14:
38
SET
F2
00
00'
08"
.
r~
R
~R
07.{)3..«)
14:
38
SET
1
79
0
59'
58"
• If
you
want
to
exit at
any
time
you
can
press
[SFT).
I
Note: After adjustment above finished, you should check
31
to.Vertical angle 0 error and collimation error
and tilt angle compensator 0 error correction
With this option, making both face angular observations,
You
can measure and adjust tilt compensator 0 position
error. And you can measure collimation error in your
instrument so that the instrument can correct·subsequent
single face observations. The 0 index
of
the vertical circle
of
your instrument can be reset also, and the index error
that will affect the accuracy
of
vertical angle measurement
can be corrected.
Operating
1.Press [
R/L]
and
power , it will
display
"SETUP"
and
"SET
0",
rotate
the
~A
~
R
Display
07.ffi.(X)
SET
0°
00'
14:
38
Fl
08"
telescope,
the
first
line will display
"SET
F1
"and will
glint.
30
6.4 Repetition angle measurement
To
find the horizontal angle with greater precision, perform
repetition measurement.
A B
C
Operating Display
07-D3-06
14:
38
1. Press
[SFT],
and
N-O
Tl
then
press
[HOLD]
A R 30°
00'
00"
to
begin repetition
~
angle measurement.
2.Collimate
the
target
A.
07-D3-06
14:
38
3. Press
[OSET],
N-O
T2
and
make
the
0°
00'
00"
R
horizontal angle of A
II
~
is
00
00'
001/
.
19
4.Collimate
the
second target
Busing
the
horizontal
tangent
screw
and
motion
clamp.
06-03-20
14:
38
5. Press
[HOLD]
,
N-O
T2
and
hOld
the
45
a
00'
08"
R
horizontal angle.
(!E
6.
Recollim
ate
the
first
target A using
the
horizontal
ta
ng
ent
screw
and
motion
clamp.
07~
14:
38
7.
Pre
ss [
as
ET
],
N-l
T2
and
make
the
00
00'
00"
R
horizontal angle of A
(!E
is
0°
00'
00"
.
9.3 Time setting
Operating Display
1.
Press
[SFT
],
07~
14:
38
and
then press
[LlR],
com
e
in
the
l.
OFF
setting mode.
(!E
I
2.
Press
[HOLD]
07~
14:
38
I
to
select
the
item
(
month,
data,
• • • • • • I
year, hour, m
in
ute,
(!E
second ) ,
the
selected
item
will
glint.
3.P
ress
[
LlR
]
or
[V%],
add
or
07~
14:
38
I
minus
it.
• • • • • •
(!E
I
4.Finish settings of
07~
16:
00
all item. • • • • • •
(!E
20
29
