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    Buy M2251B Compound Microscopes
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    Description
    The M2250 Series is ideal for a wide variety of educational applications and built to withstand student use. This series has locked-on stage clips, eyepiece, objectives (sealed 40x) and a "slip-clutch" focusing system to protect gears from over-focusing. M2251B is supplied with standard tungsten illumination and American plug.

    OPTICAL SYSTEM
    Widefield 10x /18mm eyepiece.
    Monocular viewing head with 45° inclined eyepiece.
    DIN standard 4x (0.10 N.A.), 10x (0.25 N.A.) and 40xR (0.65 N.A.) achromat objectives. All are parfocalled, parcentered and color-coded.
    Three-hole nose piece is ball-bearing mounted for smooth, precise positioning of objectives.

    ILLUMINATION
    120V, 20 watt tungsten bulb.

    ELECTRICAL
    110V power supply, unit shipped with American plug.

    FOCUSING
    Low position coarse and fine focusing controls.
    Stage moves up or down, eyepiece and body remain fixed.
    Slip clutch prevents damage to focusing system.
    Tension adjustment eliminates stage drift.
    Safety rack stop prevents damage to slides and objective lenses.

    STAGE
    Large 4-3/4 in. x 4-1/2 in. (120mm x 115mm) stage, with locked-on, spring mounted stage clips, drilled and tapped to accept optional mechanical stage.
    Built-in 0.65 N.A. condenser lens.
    Calibrated 5-hole disc diaphragm.

    FRAME
    Cord hangers.
    Base dimensions: 8 in. x 5-1/4 in. (201mm x 131mm)
    Height: 14-1/4 in. (362mm). Net wt. 6.8 lbs (15 kgs).

    PACKING
    Head and frame in molded styrofoam container with instruction brochure and vinyl dustcover.
    Individual: Ship wt. 12 lbs (5.4 kgs), Dimensions 18x12x11 in. (46x30x28 cm.)
    Master carton pack 5 each: Ship wt. 56 lbs (25.4 kgs), Dimensions 37x13x19 in. (94x33x48 cm.)

    WARRANTY
    Lifetime limited warranty, excluding bulb, cord, and fuse.
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