Maintenance - Bresser ADL-601F Bedienungsanleitung

2. On the rear of the power supply unit and next to the mains
in, there is the screw of the fuse holder. Loosen the screw
of the fuse holder (push and turn left), fetch out the bad fu-
se, replace a new fuse (230 V / 5 A, F) and tighten up the
screw of the fuse holder.
10. Exchanging the halogen lamp for transmitted light
illumination (Fig. 12)
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1. Switch off the transmitted light power switch (Fig. 1, No. 6)
and unplug the mains plug of the microscope to disconnect
the power supply. The halogen lamp has to be cooled down.
2. Incline the microscope, loose the lamp door retaining screw
(2) on the lamp door (1) and open the lamp door.
3. Pull out the old lamp from the lamp base (3).
4. Clean the new lamp with anhydrous alcohol; don't touch the
lamp with bare fingers.
5. Put the new lamp into the lamp base (3). Notice the proper-
ly touching.
6. Reinstall the lamp door (1) on chassis with the lamp door re-
taining screw (2).
7. Mount the lamp well, plug in the mains plug, turn an objec-
tive into the optical path, adjust the condenser up and down,
and make light enter the view field. If the illumination is non-
uniform, loose the lamp centering screw (4) slightly and mo-
ve the lamp base (3) with it to bring the lamp spot into the
center. Finally, tighten up the screw (4).
11. Exchanging the fuse for transmitted light illumination
(Fig. 13)
1. Switch off the trans-
mitted light power
switch (Fig. 1, No. 6)
and pull out the plugs
of the power cord
from mains socket
and from mains in at
the microscope (1).
2. Grip with a small
screwdriver under the
lug of the fuse holder
(2) and pull it careful-
ly forward. Take out the fuse holder (2). Change the fuse. The
specification of the fuse: 250 V / 0.5 A, F. Install the fuse hol-
der and plug again.
d
1#
VI. MAINTENANCE
1. Cleaning the frame and the stage
Disconnect the plug from mains socket before cleaning. Clean
the frame and the stage with a soft cloth moistened with a
mild detergent solution. Be sure that the instrument is dry
before using.
2. Cleaning optical parts
The eyepieces and the objectives of the microscope are
coated. They should not be wiped because dry dirt or dust
may scratch the coating. It is best to remove the parts to be
cleaned from the frame prior to cleaning. Always blow loo-
se dust away first. Use lens tissue of good quality moiste-
ned with a lens cleaner or a small amount of alcohol; then
wipe the surface clean with a lens tissue. Solvents such as
xylene should NOT be used as cleaner.
E
3. Do not disassemble objective lenses!
4. Cleaning the 100x oil immersion lens
c
The immersion oil should be removed from the lens at the
b
end of each workday using a lens tissue moistened with a
lens cleaner or a small amount of alcohol.
5. Being not used
Cover the microscope with the dust protective cover and pla-
ce it there, where it is dry and mildewyless. We suggest the
storage of all objectives and eyepieces in a closed contai-
ner with drying agent.
c
b
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