4
5
Operating the microscope
n
k
c
a
b
g
j
l
m
f
d
i
e
h
o
i. SETTING THE SPECIMEN
●
●
Place the specimen down on a flat surface
●
●
Using the stone holder, clasp the specimen on either side, making sure it
is held securely between the stone holder clips (a).
●
●
Slot the stone holder into one of the stone holder posts (b). Try both
sides to see which you feel most comfortable with.
ii. ILLUMINATION
●
●
Remove the white cap from the turret section that holds the objective
lenses of the microscope (c).
Tip:
Use the white cap to produce a diffused white light by placing it over
the iris diaphragm.
●
●
If necessary, plug the microscope into a power source (d), then turn the
microscope on by pressing the ON/OFF switch on the left-hand side (e).
N.B.:
When the microscope is recharging the ‘ON’ button appears red;
when it is no longer connected to a power supply it will turn green.
●
●
The right hand dial (f) controls the two light sources in the following way:
I - controls the main light only
II - controls the overhead light only
III - controls the main light and the overhead light simultaneously.
LABELS:
a - Stone holders
b - Stone holder post
c - Objective lens
d - Outlet
e - On/off switch knob
f - Light control knob
g - Rheostat knob
h - Iris diaphragm
i - Lever for iris diaphragm aperture
j - Movable eyepiece holder
k - Zoom turret
l - Eye piece focus knob
m - Dioptre adjustment
n - Left eyepiece
o - Right eyepiece
Summary of Contents for ST-40 Series
Page 1: ...Gem A Portable Microscope ...