MICROMET PORTABLE MICROSCOPE

Omex Technologies' MicroMet Portable Microscope represents a unique and advanced design conveniently combining two microscope configurations into one. An upright configuration , also called Surface Inspection Scope, allows the inspection of large or awkwardly placed objects inaccessible to any conventional microscope. The inverted configuration, also called Metallurgical Scope, is used for the examination of small opaque objects, such as conventional metallurgical specimens, which are placed on the scope stage.
The internal components of the microscope can be easily and quickly rearranged to set it up in either one configuration. Both models can be used in locations and under conditions impossible for any other type of microscope.


Components of the Microscope

Microscope Body consists of

• Long Working Distance (LWD) Microscope Objectives: 10x, 20x, 40x
• Objective Slide for change of magnification
• 10x Wide Field Eyepiece in the Drawtube
• Focusing Mechanism
• Base Plate with (2) threaded holes

Light Source contains

• High Intensity halogen light bulb assembly
• Two AA (1.5 V) batteries (NOT SUPPLIED)
• Switch Plate
• Light Diffuser (sliding)
• Blue Filter (optional)

Intermediate Plate holds

• Incident Iris Diaphragm
• Light Tube (for upright or inverted microscope set up)
• Eyepiece Tube

INITIAL MICROSCOPE SET UP

• Place the microscope on a leveled flat surface. Unscrew (2) Light Source holding screws and remove the Light Source.
• Slide (2) AA size batteries into the openings in the back of the Light Source housing.
• CAUTION: Make sure that one battery is installed with its”+” and the other
  battery with its “–“ toward the outside of the housing.
• Slide the Switch Plate into a slot in the back of the Light Source housing while pressing on the batteries with the finger.
• Assemble the Light Source to the Microscope Body and tighten (2) holding screws. Make sure that the Switch Plate is in the extreme right position. This corresponds to an OFF position.

ADJUSTMENT OR REPLACEMENT OF THE LIGHT BULB

• Slide the Light Bulb Cover off and observe the Light Bulb assembly.
• If the Light Bulb is dark or black, it needs to be replaced. The Light Bulb assembly (not the Light Bulb) is a replaceable unit and it can be ordered from your dealer.
• To replace the Light Bulb assembly unscrew (4) set screws located in pairs on the opposite sides of the Light Source housing.
• Remove the Light Bulb assembly and install a new one. Match the groove in the Light Bulb assembly housing with the sharp ends of the set screws, Lightly press the assembly against the electrical contacts and tighten the set screws so that the bulb filament is approximately centered.
• Turn the light on by rotating the Light Adjustment Switch several clicks clockwise to obtain sufficient light intensity.
• Remove the Eyepiece. Viewing through the Eyepiece Tube move the Objective Slide outward until you can see the light spot projected on a surface between the Objectives of the Objective slide.
• Center the Light Bulb assembly by (4) screws until the image is round and well positioned.
• Set the microscope to 100x magnification by sliding the Objective slide in to dead stop. Install the eyepiece and place the microscope on a metal or other flat surface. Focus the microscope to the surface and observe the resulting image through the Eyepiece. The Field of View shall appear evenly illuminated with no dark areas near the edge.
• If a slight correction is required, correct the light bulb adjustment with the (4) screws while observing the image through the Eyepiece.
• After completion of adjustment slide the Light Bulb Cover back and turn the light off.
   

OPERATING THE MICROSCOPE

UPRIGHT (SURFACE INSPECTION) SCOPE

Assemble the Light Tube marked “U” with the beamsplitter facing toward the objective to the Intermediate Plate. Center the tube relative to the plate ends and secure with two set screws. Insert the assembled parts into the microscope housing with the Iris diaphragm facing toward the front of microscope, and secure with two knurled screws.

• Attach the Light Source housing to the microscope and secure with two knurled screws.
• Place the Microscope on the surface to be inspected. For the examination of the uneven surfaces or for the balancing of the microscope, (2) positioning screws near the front of the microscope base can be used to compensate for any irregularities.
• Bring the required objective into position by sliding the Objective Slide back or forth by its projecting knobs at the front (examination usually begins with the lowest power of 10x when the Objective Slide is set all the way in. The other objectives are used by sliding the Objective Slide outward until it clicks).
• Switch on the light by sliding the Switch Plate in.
• Look through the Eyepiece and adjust the Focusing Knob until the image is sharp.
  NOTE: The Parfocality of the Microscope Objectives is set only for focusing from the highest power of 400x to 200x and 100x. If one shifts the magnification upward from 100x, the refocusing of each higher magnification objective will be required.

INVERTED (METALLURGICAL) SCOPE
 

• Disassemble the Eyepiece Tube from the Intermediate Plate. Remove the Light Tube marked “U”.
• Assemble the Light Tube marked “I” with the beamsplitter facing toward the objective to the Intermediate Plate. Center the tube relative to the plate ends and secure with two set screws. Insert the assembled parts into the microscope housing with the Iris diaphragm facing toward the front of microscope, and secure with two knurled screws.
• Attach the Light Source housing to the microscope and secure with two knurled screws.
• Place the Microscope in the inverted position with the Light Source Housing against the even surface. Insert the Drawtube into the opening of the Microscope Housing.
• Bring the required objective into position by sliding the Objective Slide back or forth by its projecting knobs at the front (examination usually begins with the lowest power of 10x when the Objective Slide is set all the way in. The other objectives are used by sliding the Objective Slide outward until it clicks).
• Place the object to be inspected on top of the stage above the microscope objective with its surface facing downwards. Switch on the lamp and look through the eyepiece , adjusting the focusing knob until the image is sharp in focus.