Teleskop-Service TSEQ25 Manuale utente
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Equatorial mount TSEQ25 User manual
User manual
Equatorial mount
TSEQ25
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Equatorial mount TSEQ25 User manual
Never look at the sun with a telescope or
any other optical device. Permanent and
irreversible damage would be done to
your eyes, which could lead to blindness.
For solar observation, there are special
solar filters that are mounted in front of
the front lens of the telescope. Please also
consider the small finder scope, which
must also be covered or equipped with a
solar filter.
Do not use eyepiece solar filters, as they
may crack and cause you to lose your
eyesight.
Also, please do not use the telescope for
solar projection. The heat generated inside
may destroy the telescope/eyepiece.
Never leave the telescope unattended,
especially when children are around. They
could endanger themselves and others
through lack of knowledge.
Only use the telescope for the type of ob-
servation described in these instructions.
WARNING!
Contents
Overview......................................................................................................... 3
Assembling the tripod ....................................................................................4
Installing the mount head...............................................................................4
Attachment of counterweight rod, counterweight and shafts........................5
Adjusting the latitude......................................................................................6
Balancing telescope and mount.....................................................................6
Polar Alignment ..............................................................................................8
Celestial coordinates......................................................................................9
Tracking motor (sold separately)..................................................................10
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a
b
d
c
e
f
g
h
Equatorial mount TSEQ25 User manual
Note: Some images in this manual show a different mount.
Overview
a. Declination fine adjustment
b. Right ascension fine adjustment
c. Clamping of the declination axis
d. Clamping of the right ascension axis
e. Counterweight
f. Clamping pole height adjustment
g. Pole height adjustment
h. Dovetail clamp for telescope
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Equatorial mount TSEQ25 User manual
Unpack all parts and place them rea-
dy for assembly.
Adjust the tripod legs to a comfortab-
le (working) height for you and make
sure that the adjusted length/height
of the legs is the same.
Attach the tripod legs to the tripod
head using the screws provided.
Make sure that the holders for the
storage plate face inwards.
Plug the storage plate and holder
together as shown in the picture and
lock the connection by turning the
storage plate by 60 °.
Assembling the tripod
Installing the mount head
Place the mount head on the tripod, insert the
retaining screw from below through the hole
in the Tripod Head and tighten the mount
head. Hold it in position until the screw is fully
tightened.
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Equatorial mount TSEQ25 User manual
Next, attach the two flexible shafts to the
mount. To do this, remove the protective rub-
ber caps from the shaft axles of the mount, if
present.
Loosen the clamping screw of each shaft and
slide the shaft onto the axis so that the clam-
ping screw is on the flattened side of the axis.
Attach the counterweight rod and turn the
mount head so that the rod points down-
wards.
Then lock both axes with the clamping
screws. Then remove the knurled screw at
the lower end of the counterweight rod.
Slide the counterweight onto the rod and fix
it with the clamping screw. Then reinsert the
knurled screw.
Attention: Make sure to check if the
clamping screw of the weight is tightened
properly before releasing the weight! Risk
of injury!
Attachment of counterweight rod, counterweight and shafts
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f
g
Equatorial mount TSEQ25 User manual
Set the latitude of the mount to the latitude of
your observation site.
To do this, loosen the toggle screw fand use
the screw g to set the correct polar height.
Tighten the toggle screw f.
In order to minimize the load on the mount
and to be able to move the telescope as
easily as possible, all parts on the mount
(counterweight, tube with accessories on the
eyepiece side, etc.) should be balanced, i.e.
brought into equilibrium.
To do this, set up the telescope with the
mount so that you have enough space to
slew the telescope without the tube hitting
objects in the vicinity.
Now first open the clamping screw on the
upper axis (Dec axis, c).
Move the counterweight to the lower end of
the counterweight rod and clamp it there.
Turn the RA axis so that the counterweight is
at the lowest position and clamp the axis in
this position.
Loosen the clamp of the upper axis (Dec axis,
c), bring the telescope tube into the horizontal
position and check whether the tube remains
in this position or moves to one side due to
an imbalance.
Balancing telescope and mount
Adjusting the latitude
d
c
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Equatorial mount TSEQ25 User manual
If the tube is not in balance, first clamp the
Dec axis with the tube in a horizontal position.
Slightly loosen the clamping screw(s) of the
tube clamp. Move the tube to compensate
for the imbalance. To check, loosen the Dec
axis again and again while holding the tube to
prevent unintentional swiveling.
Tighten the clamping screw of the tube
clamp(s) when the tube is balanced.
Now slew the tube to the position shown in
the adjacent picture (parallel to the RA axis).
The inclination may differ from that shown in
the image.
Make sure that the Dec axis (clamping screw
c) is locked and open the clamping screw of
the RA axis (d).
Loosen the clamping screw of the counter-
weight. Swivel the telescope until the Dec-
axis is horizontal. Hold the counterweight to
prevent it from slipping on the rod.
Find the counterweight position where the
weight and telescope are balanced and
clamp the weight at this position. It should no
longer be possible to move it. Return the tele-
scope to the position shown in the first image
on this page and clamp the RA axis.
Your telescope is now balanced on the
mount.
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Equatorial mount TSEQ25 User manual
Set up the tripod with the mount so that the
right ascension axis points as exactly as
possible to the north. A compass facilitates
the alignment.
Look for the constellation „Big Dipper“ in the
night sky. The imaginary connecting line of
the two rear stars points to the North Star
(„Polaris“).
The northern celestial pole is in the immediate
proximity of this star.
Be careful when setting the latitude as well
as the alignment to north, because the more
precise the alignment is, the longer you can
track the telescope to an object only by mo-
ving the RA axis.
Look along the Dec axis. If this axis points to
Polaris, you have aligned your mount accu-
rately enough for visual observing. You can
now loosen the axis clamps and slew the
telescope to the desired object. Then lock
the axes. Now you can fine tune with the two
flexible shafts and then use only the RA shaft
to track the telescope.
A parallactic mount is set up so that the
RA axis is parallel to the Earth‘s axis. With
correct alignment, the apparent motion of the
celestial bodies caused by the Earth‘s rotati-
on can be compensated by moving only the
RA axis.
When doing this, the tripod should be as level
as possible (tripod head level). If the ground
is uneven, you can extend the tripod legs
to different lengths to compensate for the
unevenness.
Polar Alignment
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21 22 23 0123
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Equatorial mount TSEQ25 User manual
Right ascension
Declination
Celestial North Pole
Celestial South Pole
On Earth, we have a coordinate system that
can be used to accurately describe any loca-
tion on Earth using two coordinates. These
are latitude (north or south angular distance
from the equator) and longitude (east or west
angular distance from the prime meridian).
In the sky, declination corresponds to latitu-
de. Thereby „+“ stands for the northern, „-“
for the southern hemisphere. The longitude is
represented by the right ascension.
However, there is no value for east and west,
but a continuous count in hours and minutes
indicated (0 to 24 hours). You will find these
values on the pitch circles of your mount.
You can - assuming a precise setup and
alignment of the mount - locate objects ap-
proximately based on the coordinates or use
star charts exclusively.
Celestial coordinates
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Equatorial mount TSEQ25 User manual
The apparent motion of celestial objects
results from the Earth‘s rotation. To compen-
sate for this motion and to keep the observed
object in the telescope‘s field of view, the
mount must be tracked during observation.
A motor set consisting of a tracking motor
and a manual control is available for the
TSEQ25. The motor is mounted on the RA
axis and does the tracking.
Tracking motor (sold separately)
Teleskop-Service GmbH
Von-Myra-Straße 8
D-85599 Parsdorf
Tel. 089-99228750
E-Mail: [email protected]
The motor set includes all the parts you need
for mounting. The assembly is done in a few
minutes. Proceed as follows.
1. Remove the flexible shaft of the RA axis.
2. unscrew the grub screws in the flexible
coupling until they no longer protrude into the
axial bore.
3. Remove the two allen screws next to the
worm wheel of the RA axis.
4. Slide the flexible coupling onto the worm
shaft, making sure that the grub screw is
positioned over the flattened side of the shaft.
Carefully tighten the grub screw.
5. Slide the motor shaft onto the flexible
coupling and rotate the motor unit so that
the holes of the holder are located over the
threaded holes below the worm wheel.
6. Fasten the holder to the mount with the
two hexagon socket screws.
7. Carefully tighten the grub screw on the
motor side of the flexible coupling.
8. Connect the manual control to the motor
and to the power supply.
1) Roughly point the telescope at the object
to be observed as usual (loosening the axis
clamps, manual slewing, locking the axes).
2. Switch on the manual control. When the
voltage is sufficient, the operation LED lights
up.
3. Set the desired tracking direction (northern
or southern hemisphere).
The motor will now track the mount.
4. To center the target object in the eyepiece,
use the manual drive in the declination axis.
The RA axis is moved with the four keys of
the manual control. You can use these to
move the axis in both directions. Two speeds
are available in each case.
Mounting the tracking motor
Using the tracking motor
Indice
