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

STEREOSCOPIC ZOOM MICROSCOPE MODELS

-440PLL (Binocular Head) T-440PLL (Trinocular Head) 440 440

- (Binocular Head) - (Trinocular Head) 440 440P 440T 440P

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

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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