B-510ASB Trinocular Asbestos Microscope – NIOSH 7400

Observation Methods: Brightfield, Phase Contrast.
Head: Trinocular, 30° inclined, rotatable 360°, ±5 dioptric adjustment on left eyepiece, interpupillary adjustment 50 – 75 mm, splitting ratio eyepieces/photo tube: 50% – 50%
Eyepieces:

• Plan wide field, PL 10x/22, high eyepoint
• 12.5x/18, High Eyepoint with Walton-Beckett reticle

Nosepiece: Quintuple revolving nosepiece, rotation on ball bearings
Objectives: IOS W-PLAN 4x, 10x, 100x (oil); IOS W-PLAN PH 40x
Stage: Double layer with mechanical sliding stage, size 233 x 147 mm, X-Y movement range 78 x 54 mm. Belt-drive in X direction. Vernier scale on two axes, accuracy 0.1 mm
Condenser: Abbe condenser, sliding-in, N.A. 1.25 with centering system. Included slider with 40x phase contrast and brightfield positions.
Focusing: Coaxial coarse and fine focusing mechanism (graduated, 0.002 mm) with upper stop. Adjustable tension of coarse focusing knob.
Illumination: High-efficiency X-LED3 (3.6 W), manual brightness control. Köhler illumination system with field diaphragm