VWR VisiScope 400 Serie Manual De Instrucciones página 10

VIEWING TUBE
Dioptric adjustment
1. Look into the right eyepiece with your right
eye only, and focus on the specimen.
2. Look into the left eyepiece with your left
eye only. If the image is not sharp, use the
dioptric adjustment ring ① to compensate.
(Fig.19)
► The adjustment range is ±5 diopter. The
number indicated on the adjustment
ring graduation should correspond to
the operator's dioptric correction.
Adjusting the interpupillary distance
Observing with both eyes, hold the two
eyepiece prism assemblies. Rotate them
around their common axis until the fields of
view coincide.
► The graduation on the interpupillary
distance indicator ②, pointed by the
spot "." on the eyepiece holder, shows
the distance between the operator's
eyes. (Fig.20)
The range of the interpupillary distance is 48-
75mm.
Selecting the light path
Pull the light path selector lever
using your thumb, selecting the light path you
need. (Fig.21)
LIGHT PATH SELECTOR
LEVER
In
Out
②
③
sideways
BRIGHTNESS
20% used for binocular observation, and
80% used for video or photography
100% used for binocular
observation
10
①
③
Binocular observation, television, and
micrography or video can be operated
Fig.19
Fig.20
Fig.21
APPLICATION
simultaneously
Binocular
observation