Ken A Vision T-1922C Manuale utente

Cordless Comparison

Scope

Instruction Manual

T-1922C

T-1924C

Thank you for purchasing a Cordless Comparison

Scope.

Packing List

Dust Cover Instruction Manual

Power Supply / Charger Warranty Card & Sheet

Allen Wrench

Application

The Ken-A-Vision Cordless Comparison Scope is a useful addition to

a forensic curriculum, the teaching of Embryology, Histology, Geology or

any subject involving the comparison of two specimens, side-by-side. It

comes in two versions. The T-1922C is designed for standard

microscope slides with a mechanical stage and Abbé condenser. The T-

1924C has the features of the Ken-A-Vision Cordless Comprehensive

Dual Purpose Scope, which means it may be used for standard

microscope slides with up to 400x magnification, and/or to view macro or

opaque objects in a manner similar to a stereo or dissecting microscope.

Both are shipped as cordless units, with an enclosed charger/power cord

adapter.

The T-1922C has 4x, 10x, and 40xR DIN objectives, with an Abbé

condenser, iris diaphragm and mechanical stage. Each side of the

comparison has an independent light rheostat for light control.

The T-1924C has 2x, 4x, 10x and 40xR DIN objectives and a floating

stage with stage clips allowing for the specimen to be moved along both

the x and y axis. This microscope has both a sub-stage and a Supra

stage illuminator, for use depending upon whether a microscope slide or

an opaque (or macro) specimen is being looked at.

SPECIFICATIONS

Catalog Number T-1922C T-1924C

10x Widefield Eyepiece with Pointer XX

Seidentopf Binocular Head XX

4 Hole, Reversed Nose Piece XX

4x, 10x, 40xR DIN Objective Lenses X

2x, 4x, 10x, 40xR DIN Objective Lenses X

Specifications subject to change without notice

1. Seidentopf Binocular Head 2. Eyepiece Tubes

3. Bridge Assembly 4. Bridge Assembly Head Socket

5. Fine & Coarse Focusing 6. Stage

7. Microscope L 8. Microsocpe R

Bridge Assembly - adjust for left/right/split

viewing XX

Coarse and Fine Coaxial Focal Adjustment XX

Supra-Stage Incident Lighting

(Above-Stage Light) XX

Sub-Stage Transmitted Lighting

(Below-Stage Light) X

Mechanical Stage X

x/y Floating Stage X

Abbé Condenser X

Iris Diaphragm X

Power source- NiMH Batteries XX

Light Rheostat to adjust lighting XX

Contour Base XX

Catalog Number T-1922C T-1924C

1. 2.

5. 6.

Microscope Preparation and Assembly

Step 1. Open packing boxes carefully. There will be two large boxes,

each containing a microscope base, and two smaller, one with the

bridge assembly and one with the Seidentopf binocular head that fits

onto the bridge. Lift each microscope base out of shipping container.

Note that the serial numbers on the bottom of the units end in either

an L (left base) or an R (right base). Remove all packing materials on

stage and illuminator. Unpack the bridge assembly and the

Seidentopf binocular head. Place microscopes side by side as

shown, with the "L" scope to the left, and the "R" scope to the right

and with the arms of the miscroscopes toward the back.

Step 2. At the top of the head socket of each microscope base find three

screw holes. There are "saftey screws" in each hole, removable

using a small screwdriver. Underneath these "saftey screws" there

are set screws. Using the small Allen wrench provided, back off the

set screws two or three turns, until flush with the inside rim of the

head socket of the base. (the points of these screws are initially

visible, back them off until they disappear).

Step 3. Place the bridge onto the two microscope bases with the Ken-A-

Vision logo and X-axis control facing toward you. Tighten the set

screws so the bridge is locked on tight, and replace the saftey screws

to prevent students from tampering.

Step 4. Remove the dust cover from the Bridge Assembly Head Socket,

and loosen the set screw located on the right side until the screw tip

is flush with the wall of the head socket.

Step 5. Place the Seidentopf binocular head into the socket, sliding in

from the right, until it is flush in socket opening. Tighten the set

screw.

Step 6. Insert eyepieces into the eyetubes.

Step 7. Plug both microscopes into wall socket and allow them to charge

overnight. Your Cordless Comparison Scope is now ready to use.

Microscope Use and Instructions

Visit the Ken-A-Vision Web site, http://www.ken-a-vision.com/pdf/

MicroscopePrimer.pdf, for a Microscope Primer on general microscope

usage.

Operation

The NiMH batteries of your microscope need to be charged. Plug in

the round pin adapter from the supplied battery charger (or a Ken-A-

Vision Multicharger SCGN06) into the back of your microscope. Connect

the opposite end to an electrical outlet. Charge the unit overnight

(approximately 12 hours or more) and your microscope is now ready for

up to 40 hours of continuous operation.

Power Switch

There is a separate power switch located at the right back side of

each base. On the T-1924C, the switch on each base is a double switch,

with the middle position being OFF. Depressing the right side of the

switch controls the bottom illuminator (sub-stage light), providing light

through the condenser for a standard microscope slide. Depressing the

left side switch turns on the supra-stage light for macro and opaque

objects.

Built-in Illuminator(s)

T-1922C - There is an in-base illuminator built into each base of the

microscope. Each has an independent rheostat control, which will

adjust the light intensity of the illuminator.

T-1924C - There are two illuminators built into to each of the microscope

bases, one is sub-stage and one is supra-stage. The supra-stage

illuminator is necessary for macro or opaque specimens where light

from the sub-stage illuminator can not come through. Only one of

these illuminators can be on at a time (not both), but both will change

their intensity by using the rheostat.

Abbé Condenser (T-1922C Model Only)

Found only on the T-1922C, the purpose of this condenser lens is to

focus the light. The Numerical Aperture (N.A.) of 1.25 allows the use of

the higher magnification of the 100x objective lens. Movement of the

condenser is controlled by a sub-stage black knob on the left side of the

condenser. The iris diaphragm is located in the Abbé condenser. It is

manipulated by sliding the small handle that protrudes from the

condenser to open and close the diaphragm.

Focus

Be sure the X-axis (in the middle of the Bridge Assembly) control

knob lever is in the "unlock" position, and while looking through the

eyepieces make sure the X-axis control knob is in the middle. Each

microscope works independently and must be focused independently.

Note - In the T-1924C, be sure that the floating stage is centered directly

over the sub-stage illuminator, so light comes through. - The floating

stage can actually cover up the sub-stage illuminator so no light comes

through.

Place a specimen slide on the stage of the microscope, and move the

specimen into place for viewing. First, put the 4x objective in position of

use. Using the coarse adjust knob (larger of two) raise the stage until it

will go no higher. Now looking through the eyepieces, lower the stage

(again using the coarse adjust), bringing the specimen into focus. Use

the fine adjust knob (smaller of two) to now sharpen the focus and attain

maximum resolution. Now rotate the 10x objective into place, and you

should only have to use the fine adjust to achieve a crisp focus (The

microscope is Parfocal). Now the 40x objective can be similarly utilized if

needed.

Note - on the T-1924C you may start with the 2x objective if you choose

to.

With coaxial focusing, both the coarse focus (large knob) and fine

focus (small knob) are on the same axis. Having both sets of knobs on

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

without moving eyes away from the eyepieces. Repeat this procedure

with each of the two microscope bases.

Now using the X-axis knob set for split screen, one can view the left

microscope specimen on the left, the right microscope specimen on the

right, or roll the knob and see only the left or the right specimens.

Specimen Manipulation

The mechanical stage of the T-1922C Cordless Comparison

Microscope, allows the user to control the movement of the specimen

slide on the X - Y axis. It consists of a slide holder and two sub-stage

knobs, one of which moves in the X direction (left & right), the other in the

Y direction (forward & backward).

The T-1924C comes with a "floating stage". Place the specimen on

the stage (use stage clips for a microscope slide), and then grasp the

stage between the thumb and forefinger, and move the whole stage,

specimen and all, left-right, forward-backward. Because of the

lengthened working distance of this microscope, it is not practical to have

a mechanical stage.

Seidentopf Binocular Head

The Cordless Comparison Scope has two eyepieces with a diopter

on one eyepiece to compensate for differential visual acuity between an

individual's eyes. The Seidentopf binocular head allows adjustment for

interpupillary (interocular) adjustment. The eyepieces will move to

exactly match the distance between the user's eyes.

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.

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 Ken-A-Vision at 1.816.353.4787,

Extension 5620 for more details.

Technical Specifications for Model No. T-192X Series

Microscopes

For the technical specifications on the Cordless Comparison Scope

visit the Ken-A-Vision Web site, www.ken-a-vision.com /t1922.asp

Equipment Rating: Description of Input Output

Connection

This is a 2.5 mm barrel style center pin, with a 5.5 volt, 300mA, output

supply which may be used with 110v, 220v, 230v, or 240v input systems.

The power supply /charger is made exclusively for the Ken-A-Vision

Cordless Microscope. Failure to use Ken-A-Vision parts, will void the war-

ranty of your microscope.

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-SC81922

Batteries

The supplied batteries (3) type is a 1.2V 2000mA NiMH (Nickel Metal

Hydride). Should you need battery replacement visit the Ken-A-Vision

Web site, http://store.kenavision.com/catalog/ or contact your local Ken-

A-Vision Dealer for (Cordless Comprehensive Scope Replacement

batteries). USE OF NON-RECHARGEABLE BATTERIES WILL VOID

ANY WARRANTY.

To replace the batteries, loosen the silver thumbscrew in bottom of

the base. Drop the door down, remove the battery cover and replace the

batteries.

Accessories

If you are interested in purchasing accessories or replacement parts

for your Cordless Comparison Scope visit the Ken-A-Vision Web site,

http://store.kenavision.com/catalog/ or contact your local

Ken-A-Vision Dealer.

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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