Ken A Vision Research Scope T-29031, Инструкция по эксплуатации

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objectives are all spring-loaded so they should slide onto the cover slip
WITHOUT any force. If you have to force the objecting into position, STOP,
your specimen and/or cover slip may be too thick, and you risk scratching the
objective and/or smashing the slide.
The tightness of the coarse focus knob has been adjusted at the factory. If it is
too loose (the stage falls automatically), please adjust the tension using the
coarse adjustment tension ring (located on the right side of the microscope,
between the coarse adjust knob and the body of the microscope. To tighten
the tension, turn the knob clockwise (towards the back), to loosen the tension
turn the knob counterclockwise (towards the front of the microscope) until a
suitable position is found. The stage should not move on its own as it sits
waiting for your next use.
Bulb replacement - (Replacement bulb is Ken-A-Vision
Part # T6V20WP)
IMPORTANT NOTE: Before replacing the lamp, turn OFF the power switch
and unplug from electrical source. Place microscope on its side or back,
exposing the bottom of the unit. Unscrew the knurled knob that is towards the
front of the unit to open the access door. (Be careful, if unit has been recently
used, knurled knob could be very hot). Pull lamp door down and remove
lamp by pulling straight out of socket. When replacing the lamp, do not touch
the glass of the bulb with bare hands, as the oil from your fingers can damage
the bulb and definitely will shorten the life of the bulb. Wear gloves or keep
the protective cover on the bulb during installation. Should you accidentally
put any fingerprints on the bulb, wipe then off carefully using a clean cloth.