Ken A Vision Comprehensive Scope 2 T-19011C Manuel utilisateur

Comprehensive Scope 2

Instruction Manual

T-19011C - Monocular

T-19021C - Dual Viewing

T-19031C - Binocular

T-19041C - Trinocular

Application

Thank you for purchasing the new Ken-A-Vision Comprehensive Scope 2

microscope. You will be pleased to find that this is a finely built, high quality,

versatile unit that should work well within your curriculum. The

Comprehensive Scope 2 base is modularly designed and while maintaining a

common, standard base unit it is possible to make changes in accessories. A

different head, 100 X DIN objective lens and mechanical stage with Abbé

condenser may be added to create a differently configured microscope. This

unit has been designed by Ken-A-Vision with the user in mind. It utilizes the

latest advances in research design as commonly seen on more expensive

microscopes utilizing an ergonomic position of controls for the user. Base is

lined with a resilient polymer preventing everyday damage from use. All

microscopes are pre-aligned and calibrated ready for immediate use.

Specifications

Ken-A-Vision Product # T-19011C T-19021C T-19031C T-19041C

Die Cast Aluminum Body;

Coated



Anti-microbial coating 

Base Outlined with

Resilient Polymer



10X Widefield Eyepiece

with Pointer



Monocular,

Interchangeable Head



Dual Viewing,

Interchangeable Head



Binocular,

Interchangeable Head



Trinocular

Interchangeable Head,

30° Seidentöpf Binocular

with Camera Port



Eye tubes at 30°; Ball

Bearing 360° Full Rotation



4 holed, 45° reversed

nosepiece; 360°



4x DIN Plan Achromat

N.A. 0.10 Objective lens



10x DIN Plan Achromat

N.A. 0.25 Objective lens



40x DIN Plan Achromat

N.A. 0.65 Objective lens,

Spring Loaded



100x DIN Plan Achromat

N.A. 1.25

Objective lens,

Oil Immersion, Spring

Loaded to prevent

scratching



Diopter

adjustment ± 0.20X



Low Position coaxial

Coarse and Fine Focus

Rubber Gripped knobs on

a Rack and Pinion

mechanism; Right and Left



Fine Focusing Scale

0.002mm (200 microns)



Retractable "Fold and

Store" Handle for

Transpor t



Storage Compartment for

Power/Charger supply



Ken-A-Vision Cool Light

Illumination



Low Position Rheostat/

Dimmer Switch



Ken-A-Vision Product # T-19011C T-19021C T-19031C T-19041C

 Available option

MICROSCOPE PREPARATION

Using the charging adapter provided, in order to charge the batteries of the

microscope itself, plug the pronged end into your electrical source and the

round end into the "5V DC Plug" at the bottom rear of the microscope unit.

The base of the Ken-A-Vision Comprehensive Scope 2 microscope is a

cordless unit, which once charged will operate for up to 40 hours on one

charge.

While unit is charging, check the coarse focus tension. The knobs are

rubberized and oversized to allow for better gripping. The coarse focus knob

should turn easily to change the focus, but the stage should not drift or slip on

its own.

Check the stage stop safety feature.Be sure the stage moves up and

down when turning the focusing knob. The stage stop is a thumb screw with a

lock nut found just behind the stage. To check the stop, first place a prepared

slide in position for viewing. Move the coarse focus until the object and stage

are as close together as they can be. Look at the slide and turn the 40x

objective into place. This objective should be very close to the slide, but not

touching. The Stop was set at the factory. If the spring loaded 40x lens

Detachable Low Voltage

External Power Supply

Input -110v-240v,

±500mA; Output 5.5v,

±500mA



Standard Stage -Spring

loaded stage clips; Con-

denser built-in (0.65

N.A.); 5 hole Disc Dia-

phragm



Mechanical Stage -

Coated 130mm x 120

mm; Coaxial Low Position

X and Y Knobs; 0.1mm

Vernier Scales X and Y;

Abbé Condenser (1.25

N.A.); Iris Diaphragm



Ken-A-Vision Product # T-19011C T-19021C T-19031C T-19041C

becomes fully depressed into the socket, the stop needs to be adjusted, by

loosening the locking nut and knurled knob and re-setting the stop position.

NORMAL OPERATION

General Operation Notes

Eyepieces

The widefield eyepiece is locked in to place to avoid loss of eyepiece. There is

a pointer built-in to (only one if head has two eyepieces) the eyepiece to help

identify parts of observed specimens.

Built-In Illuminator - Ken-A-Vision Cool Light/ Power

Your Comprehensive 2 microscope has the Ken-A-Vision Cool Light, LED

lighting system. The unit came with a detachable power cord/charging

adapter.

Cordless operation - Specialized, rechargeable batteries (KAV Part

#VFBATBU5) should be placed into the battery holding compartment at the

bottom of the microscope. The microscope power cord/charging adapter

should be plugged into a standard electrical source as soon as possible to

charge the batteries. It will take approximately 8 hours to fully charge a single

microscope. A normal charge should give up to 40 hours of continuous use.

NEVER STORE UNIT FOR ANY LENGTH OF TIME WITH THE BATTERIES

MOSTLY DISCHARGED. Always store the unit in a charged condition because

due to leakage, once a battery gets too low, it will be impossible to recharge

the batteries and new ones will have to be purchased. DO NOT SUBSTITUTE

STANDARD AA BATTERIES IN UNIT, AS IT WILL DAMAGE SYSTEM.

Corded operation - With the battery compartment empty, and plug in the

detachable power supply into a standard electrical source.

Conversion - Add rechargeable batteries (KAV Part # VFBATBU5) to battery

case as noted above. Charge batteries using the power cord/charging

adapter plugged into a standard electrical outlet.

Differences among Ken-A-Vision Comprehensive Scope 2

T-19021C

The dual viewing head allows two people to look at the same specimen at the

same time or connect a camera to one eyepiece for group presentation. One

of the dual viewing eyepieces has a diopter on the tube for focusing. This

allows focusing for each person's individual eye correction.

T-19031C

The binocular eyepiece has a diopter on both eye tubes for focusing. The

Interpupiliary Adjustment. When using the binocular microscope there is an

adjustment for the distance between the viewer's eyes called interpupilliary

adjustment. The eyepiece lenses will spread apart or get closer together to fit

each individual. Place one hand on each side of the binocular head next to

the eyepieces and pushing in and out until the distance between the eyes is

comfortably positioned. You will see only one image.

T-19041C

The trinocular microscope is the same as the T-19031C binocular, except that

behind the binocular head, a slot is provided for adding a camera to the unit.

Please read the note above about the T-19031C for adjusting the binocular

eyepieces.

Focus

Place a specimen slide under the stage clips or in mechanical stage and move

into position for viewing. Use the 4x objective first. Raise the stage until it will

go no higher. Then lower the stage to bring into focus. Use the fine focus knob

to achieve optimum resolution. Once the image is sharp you should be able to

simply turn the nosepiece to the next objective lens and do minor adjustments

with the fine focus knob. With coaxial focusing both the coarse and fine focus

knobs are on the same axis. The coarse focus knob is the larger knob located

next to the arm of the microscope. The fine focus knob is the smaller knob

mounted on the inside of the coarse focus knob. Having both sets of knobs on

the same axis makes it easier to switch from one focus knob to the other with-

out removing your attention from your prepared slide.

Disk Diaphragm (T-19011C & T-19021C)

The rotating disk is located under the stage (1=Smallest 5=Largest). The

different sized holes are used to control the amount of light that is projected

upward into the slide. Simply rotate the understage disc until one of the five

different sized holes lines up with the condenser lens in the stage

opening. There is no set rule regarding which setting to use with a particular

objective lens but the higher the magnification power the more light is needed.

Iris Diaphragm (include on T-19031C & T-19041C)

Within the mechanism of the Abbé condenser there is an iris diaphragm that

operates much in the same way as the iris of the eye. A very thin lever on the

front of the condenser mechanism, will slide side to side, modifying the

amount of light that will reach the specimen on the stage.

Note to novice microscopists --- Many things are seen better in low light then

in high, and looking at an intense light for too long a period of time may

cause headaches.

Abbé Condenser 1.25 N.A. (included on models T-19031C &

T-19041C)

The purpose of the condenser lens is to focus the light onto the specimen.

(adjust the amount of light needed on a specimen) The N.A. of 1.25 gives an

Abbé condenser the ability to be used with higher magnification 100x

objective lens. Movement of the condenser is controlled by a knurled knob

beneath the stage on the left side.

Mechanical Stage (included on models T-19031C & T-19041C;

Optional on T-19011C & T-19021C)

The mechanical stage is a mechanical way to move the slide around on your

stage. It consists of a spring loaded slide holder and two low position knobs on

the lower right side. One knob moves the slide forward and backward (y axis),

while the other knob moves the slide from left to right (x axis). The Vernier on

the x and y axis allow the user to precisely mark a location of something on a

slide that they may choose to return to at a later time.

Interchangeable Heads

Using an Allen wrench, insert into screw slot in arm next to head. Loosen screw

to remove plastic dust cap. Set desired microscope head on arm. Tighten

screw with Allen wrench until snug. No need to over tighten.

Adding a new Objective

Various objectives may be purchased for the Comprehensive 2 microscope as

options. Being careful to align the threads, simply screw the new objective into

one of the four slots in the head. DO NOT OVERTIGHTEN (In the T-19011C

and T-19021C as shipped standard, there is an empty fourth slot which may

be used). If unit already has four objectives in place, then one will have to be

unscrewed and new one inserted.

5615 Raytown Road • Kansas City, MO 64133 U.S.A.

Tel.: 816-353-4787 • Fax: 816-358-5072

email:info@ken-a-vision.com • www.ken-a-vision.com

INS-SC12

CARE AND MAINTENANCE

Your microscope is a fine precision instrument and should be treated with

care. When not in use it should be protected from dust by the plastic cover

provided. Lenses and eyepieces should be cleaned periodically with optical

lens tissue which is soft and lint free. Painted surfaces can be cleaned with a

moistened cloth. When using a 100xR objective oil emersion lens, be sure not

to leave any oil on the lens after use. Dip a cotton swab or lens paper with a

small amount of denatured alcohol, and clean the lens surface carefully. Do

not use aggressive solvents to clean lens.

Ken-A-Vision has quality technicians on staff to repair or service your

microscopes.

Ken-A-Vision recommends service every two years for optimal life of the

product. Contact us at 1.816.353.4787 for more details.

WARRANTY: TEN YEAR LIMITED WARRANTY AGAINST DEFECTIVE PARTS

AND WORKMANSHIP

Ken-A-Vision reserves the right to make design improvements and other changes in accordance with the

latest technology. There is no obligation to make changes in products already manufactured. Patents

PRODUCT SERVICE

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