Ken A Vision T-3300 Instruction Manual

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FocusFocus the T-3300 microscope by observing with the 10x objective and 10xeyepiece on the side without diopter ring. Rotate the coarse adjustment knob tolift the stage until the image of the specimen can be seen roughly, then rotatethe fine adjustment knob. A sharp image can then be obtained. (Loosen theauto focus stop knob for free stage motion when it is necessary). Prevent theobjective lens from touching the specimen. (Tighten the auto focus stop to limitthe stage moving past a certain point). Observe the image with the other eye-piece and adjust the diopter ring until the sharp image is obtained. Change themagnification of the objective as required by turning the nosepiece.Depending upon specimen density and objective magnification, the light levelshould be adjusted. If the light is excessively yellow, place the blue filter in thecondenser filter holder. To eliminate light irregularity when using low-powerobjectives such as 4x and 10x, raise or lower the condenser using the condens-er adjustment knob. Close down the condenser iris diaphragm to the smallestsize for observing a specimen with low contrast.BULB REPLACEMENTBefore replacement, unplug the instrument. Open the lamp window in the bot-tom plate by pulling the window knob. After the lamp has cooled, carefullyremove it from its socket and replace with a new lamp. Be careful not to touchthe new lamp with your fingers. Never operate the microscope illuminator unlessthe lamp window is securely in place.CARE AND MAINTENANCEOur product is a precision instrument. Routine maintenance on your part islimited to keeping the microscope clean. Never leave the microscope with anyof the objectives or eyepieces removed. Always protect the microscope with thedust cover when not in use.Cleaning the MicroscopeAccumulated dirt on the metal surface should be cleaned with a damp cloth. Ifthis is inadequate, a mild soap solution should be used. The outer surfaces ofthe optics should be inspected from time to time for dirt and dust. An air streamfrom a rubber air bulb removes dust best. Remove more persistent dirt with asoft cloth or cotton swab dampened in alcohol or a mild solution of Windex andwater. A small amount of absorbent cotton wound on the end of a tapered stickmakes a handy tool for cleaning recessed optical surfaces. Avoid excessive useof solvents as this may cause problems with cemented optics or the flowing sol-vent may pick up grease from the mounts, making cleaning more difficult.Clean immersion objectives immediately after use by removing the oil withlens tissue or a clean soft cloth. Occasionally the underside of the mechanicalstage fingers may become coated with immersion oil and require cleaning.RESEARCH MICROSCOPEAPPLICATIONResearch Microscope is a professional laboratory instrument for the modernbiology and medical sciences. Its modular design allows for a full range ofaccessories.SPECIFICATIONS• 10x Widefield Eyepiece w/ pointer• 45° Inclined Rotating Head• Coarse and Fine CoaxialFocal Adjustment• Binocular Head• Rack & PinonAbbe NA 1.25 Condenser• Mechanical Stage• 20 watt Halogen LampMICROSCOPE PREPARATIONSet the viewing head onto the microscope arm and lock thehead by tightening the lock screw. Position the condenser with the han-dle of aperture diaphragm conveniently accessible. Swing the filter holder out-ward and insert the filter when it is necessary.OPERATIONBuilt-In IlluminatorPlug the microscope power cord into a suitable grounded electricaloutlet. Move the illuminator switch to the “ON” position. To obtain the desiredillumination, adjust the light control dial. Put the specimen to be observed ontothe stage of the microscope and clamp it firmly with the stage fingers. Bring thespot of specimen to be observed into the center of stage hole by rotating stageX – Y movement knobs.EyepieceSet the interpupillary distance by moving the eyepiece tubes together or apartuntil the full field of view is visible by two eyes at the same time.

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