3B Scientific Binocular Microscope Model 500 with Polarization Equipment User Manual
Page 7
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com
Subject to technical amendments
© Copyright 2008 3B Scientific GmbH
that are isotropic and not birefringent remain dark
in all positions.
4.3 Changing the lamp and fuse
4.3.1 Changing the lamp
•
Turn off the power switch, unplug the mains
plug and let the lamp cool down to avoid being
burnt.
•
For safety reasons, remove the eyepiece.
•
To change the lamp lay the microscope on its
back to reach the lid on the bottom side.
•
Loosen screw C of the lamp socket and push it
outwards so that it is in the position shown in
Fig.1.
•
Loosen screw A and open the cover.
•
To remove the halogen lamp, use a cloth or
similar material. Do not touch the bulb with
the bare hand.
•
Lift out the halogen lamp and replace it with a
new one.
•
Close the cover and secure it with the screw.
•
Push the lamp socket back into the original
position and tighten screw C.
Fig. 1 Lamp socket cover: A - knurled screw, B - ventila-
tion slots, C - securing screws of lamp-holder
4.3.2 Changing the fuse
•
Turn off the power switch and unplug the
mains plug.
•
Unscrew the fuse holder on the back of the
stand base with a screwdriver.
•
Replace the fuse and reinsert the holder in its
socket.
5. Storage and cleaning
•
Keep the microscope in a clean, dry and dust
free place.
•
When not in use always cover the microscope
with the dust cover.
•
Do not expose it to temperatures below 0°C
and above 40°C and a max. relative humidity
of over 85%.
•
Always turn off the light immediately after use.
•
Use a soft linen cloth and some ethanol to
clean the microscope.
•
Use a soft lens tissue to clean the optics.