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5.
Electrical Connection and Safety
Stands are supplied with an operating voltage of either 220/240 VAC 50/60Hz or 110/120
VAC 50/60Hz. The instrument is supplied with a power lead complete with appropriate
plug for mains connection. UK plugs are fitted with a 3A fuse. This should only be replaced
with a similarly rated fuse. The instrument should ALWAYS be switched off and isolated
from the mains before any lamp or fuse is changed. The internal fuse is a T1.25A type
(replacement code W335). If necessary, replace only with this type of fuse.
6.
Setting Up
Connect the power cable to the base of the microscope, at the rear, and before switching on
the power, reduce the lamp intensity control to its minimum setting. After switching on, the
intensity should be increased to a comfortable level. This procedure should be reversed
before switching off. Following this method will considerably prolong the life of the bulb.
Binocular/Trinocular Head
Interpupiliary distance should be set by rotating both eyepiece tubes in an arc until the two
images coincide and the view is perfectly circular to both eyes. Note the value on the scale
between the eyepieces so that the position can quickly be regained for future viewing. Place
a specimen on the stage and focus the image while looking through only the right eyepiece.
When the specimen is in focus close the right eye and adjust the dioptre on the left eyepiece
so that the image is perfectly focused. The instrument is now balanced for your eyes.
P r i o r L u x P O L
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5
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