Vetlab Supplies Ltd Unit 13 Broomers Hill Park Broomers Hill Lane Pulborough RH20 2RY
Telephone 01798 874567 Fax 01798 874787 Email
www.vetlabsupplies.co.uk
Regulating brightness of the view
:
There are several ways to adjust the intensity of light shining through the specimen,
in order to see things more clearly. In most cases, a better view is obtained by the
use of a coloured glass filter inserted below the iris diaphragm. Slide the filter
holder to the right to reveal an open ring. Insert the blue filter into this ring and
slide the filter holder back into position under the diaphragm.
The iris diaphragm below the stage fitted underneath the condenser can be opened
(slide lever back to left) or closed (slide lever forward) to control the amount of light
directed through the condenser.
The condenser assembly under the stage can be shifted up or down by means of the
control knob (left hand side under stage) to effectively move the light beam closer to
(up) or away from (down) the specimen under observation.
The
Vetlab Premiere 500
is also equipped with a field diaphragm installed over
the collector lens for Kohler illumination. Open or close this diaphragm as desired by
rotating the outer ring to control the amount of light aimed at the condenser
assembly.
Finally, the dimmer control also allows the user to adjust the intensity of the halogen
light. Vary these different methods of regulating the light beam on the specimen to
obtain the most effective picture for your eyes.
As a general rule you will find that the higher the magnification you use, the more
light is required and so all light controls will need to be increased.
After using your microscope, turn the dimmer control to the lowest setting and turn
off the power to prolong the life of the halogen bulb.
MAINTENANCE
Like other optical instruments, this microscope should be kept in a cool, shady and
dry place, free from dust, fumes and moisture. If not stored in its box, cover with a
hood to protect from dust.
If there is any dirt settled on the lens, wipe it off gently with some lens paper. If
alcohol is used, be careful not to let it penetrate through the lenses and dissolve the
gumming. Any dust settled on the lenses can be blown away with an air blower or
wiped off with a clean soft camel hair brush.
Please keep the original packing for shipment in case of need for repair or servicing.
