National Optical 440T-440PLL Manual

National Optical Mikroskop 440T-440PLL

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National Optical & Scientific Instruments Inc.
6508 Tri-County Parkway
Schertz, Texas 78154
Phone (210) 590-9010 Fax (210) 590- 1104
INSTRUCTIONS FOR
-440PLL (Binocular Head) T-440PLL (Trinocular Head) 440 440
- (Binocular Head) - (Trinocular Head) 440 440P 440T 440P
Copyright © 1/2/01
National Optical & Scientific Instrument Inc.
Stereoscopic microscopes are used for viewing 3-dimensional objects, inspection or assembly of small parts, and for dissection of
biological specimen. They provide an upright, unreversed image which permits easy manipulation of the object being viewed while
Notice: The first three digits of the model number, for example 440- 4 -or 4 0T , represent the optical
portion of your microscope. Thus, all models star h 4 0 have the same binocular head, and all ting wit 4
models starting with 440T have the same trinocular head. Procedures for use of the head are the same,
regardless of the stand supplied with your specific model.
The digits following the first – (dash) represent the stand portion of your microscope. The different
stands available have features and functions unique to each.
You made your selection of stands when you originally purchased your microscope. The above
explanation is provided so that when ordering and installing replacement bulbs you use the correct bulb
for your particular model number.
Models with PLL have the dual LED base
Models with P have the Plain base
3
looking through the microscope. They are designed for viewing solid objects at low magnification, but they will also permit viewing of
some transparent specimen slides.
For optimum viewing satisfaction, follow these simple procedures. Nomenclature used to describe components and controls can be
identified by referring to the diagram at left.
UNPACKING
1. Carefully remove microscope stand and head assembly from cartons. Remove rubber eye shields eyepieces, , frosted stage plate,
dustcover, and used for changing stage plates) dy “L” hex key wrench ( . The black/white contrast plate (80mm diameter) is alrea
mounted in the microscope base. (Models with – P do not include frosted stage plate, “L .)” hex key wrench
2. Make certain not to touch any of the lens surfaces while handling the microscope. Dust, dirt, fingerprints can damage th e delicate
lens surfaces or adversely affect image quality.
3. Examine packing material before you discard it. Retain the styrofoam container in case you need to transport, store, or
return the microscope for service. If it becomes necessary to ship the microscope for any reason, pack it in the styrofoam
container, and then pack the styrofoam in another corrugated shipping container for optimum protection. Use of the styrofoam
alone will not provide adequate protection in transit and will void your warranty.
ASSEMBLY
1. Mounting the stereo zoom head to stand
A. Loosen head locking screw and head retaining screw.
B. Insert head into the stand (do not force), positioning head to face either forward or backward, whichever suits your preference
or needs.
C. Tighten head retaining screw and head locking s crew.
2. . Install rubber eyepiece shields over top of eyepieces
OPERATION
1. ILLUMINATION (only for models with illuminators)
A. Before operating mi croscope, adjust intensity control located on side of base to the minimum position. This should be done
prior to each time light is turned on or off. Failure to do so will significantly shorten bulb life.
B. Make certain that the main voltage of your microscope corresponds to the voltage of your power outlet, either 120v or 220v.
Insert microscope plug into matching voltage outlet.
C. The microscope is furnished with two stage plates. The frosted glass plate is used when viewing transparent specimen slides
or for viewing some specimen thin enough through which light can pass (insect wings, etc.) The plastic black/white contrast
plate can be used when viewing opaque objects or for dissecting. Choose side of plate providing best contrast with specimen.
D. wo There are t rocker type light controls located on top surface of microscope base.
“I” = Turns incidental light on (top illumination)
“T” = Turns transmitted light on (substage illumination)
NOTE: USE TRANSMITTED ILLUMINATION ONLY WITH FROSTED GLASS STAGE PLATE IN PLACE. HEAT
GENERATED IN BASE FROM BOTTOM LIGHT WILL WARP OR DAMAGE THE PLASTIC BLACK/WHITE PLATE. SUCH
DAMAGE WILL NOT BE COVERED BY WARRANTY.
Remove black/white stage plate by loosening locking set screw located on front of base with supplied “L” wrench. Install
frosted glass stage plate. Tighten locking set screw.
Incidental illumination can be used with either frosted glass plate or black/white plastic stage plate. The top light has an
intensity control located on side of base. When using incidental light, always set intensity control at its lowest level before
turning lamp on or off. This measure will extend bulb life. The top light can also be centered on specimen by using the top
light beam adjustment screw. This allows user to select the best spot illumination required for specimen being viewed.
Transmitted and incidental illumination combined can provide extra illumination for certain objects where additional top
illumination will enhance the object being viewed.

Produkt Specifikationer

Mærke: National Optical
Kategori: Mikroskop
Model: 440T-440PLL

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