National 131 Series Student Compound Microscopes

OPTICAL SYSTEM

• Widefield 10x eyepiece with revolving pointer. Accepts optional #965-160 eyepiece reticle.
• 45° inclined viewing head rotates 360° for easy repositioning of eyepiece and sharing by more than one student, or for reverse position viewing.
• DIN standard, achromatic, parfocalled, parcentered, and color-corded: 4x (0.10 N.A.), 10x (0.25 N.A.), and 40xR (0.65 N.A.) objectives.
• 4-hole nosepiece is ball-bearing mounted for more precise alignment, has positive click stops.

ILLUMINATION

• Built-in LED, delivers greater light and longer life than standard tungsten bulbs. 
• Virtually heat free operation.
• Base mounted on/off switch
• heavy-duty 3-wire cord

FOCUSING

• Separate low position coarse and fine focusing controls.
• Stage moves up or down, eyepiece and body remain fixed.
• Coarse focusing has slip clutch to prevent damage to focusing system.
• Tension adjustment eliminates stage drift.
• Safety rack stop prevents damage to slides and objective lenses.

STAGE

• Large 120mm x 120mm (4-3/4 in. x 4-3/4 in.) stage.
• Professional quality, low profile mechanical specimen holder.
• Low-position coaxial x-y controls.
• Built-in 1.25 N.A. Abbe condenser with iris diaphragm.

FRAME

• Rugged cast metal, gray enamel finish.
• Height: 365mm (14-1/2 in.)
• Net wt. 3.4 kgs (7.4 lbs)

PACKING

• Molded Styrofoam container with vinyl dustcover.
• Individual: Ship wt. 11 lbs)
• Dimensions 550x325x325mm (22x13x13 in.)
  

Ships directly from the manufacturer. Please contact us for current lead times.

DOWNLOAD DATA SHEET

DOWNLOAD MANUAL