FOCUSING CAPABILITY
The Pole-type focusing stands have a double focusing capability, i.e.
Rough Focus
(by sliding the whole focus assembly and zoom
body up and down on the pillar, fixing the clamp screw when in
approximate focus on your specimen),
Precise Focus
(by using
the rack and pinion focusing knob).
The focusing stands, P, PL, PX, PC, PB, PBH and BX are the Pole-
type.
5
Before moving the whole focus assembly up and down for rough focus, loosen
pillar collar once and make sure to reset after the rough focusing is done.
How to use selector switch and dimmer switch
Focusing stands, PBH, ABZH and ABE, are using 6V 10W Halogen lamps with suitable transformers built-
in base and a selector switch and a dimmer switch on the base.
Select an illuminator to use, either incident or transmitted, by the selector switch in the way described
above. Then, turn the dimmer switch knob slowly to clockwise to turn the dimmer switch ON and to increase
brightness. Turn the knob to counterclockwise to decrease the brightness and to turn OFF.
OFF
I
T
IT
OFF
Selector Switch
Focusing Knob
Focusing assembly
Clamp Screw
Pillar collar and
clamp Screw
Dimmer Switch
HOW TO OPERATE ILLUMINATORS
How to use selector switch
Focusing stands, PB and ABZ, are using 6V 1.2A (7W) tungsten filament bulb with suitable
transformer built-in base and selector switch on the base.
Turn the selector switch knob to indicate
[
I
]
for oblique illumination, to indicate
[
T
]
for transmitted
illumination and
[
IT
]
for simultaneous illumination by oblique and transmitted lights. The selector switch
has OFF position at the both right and left ends.
OPERATION PROCEDURES
OFF
I
T
IT
OFF
Selector Switch
