Fisher Scientific Abbe Benchtop Refractometer, Model 334620

The Fisher Scientific Abbe Benchtop Refractometer, Model 334620, performs a wide variety of analyses including purity studies, film thicknesses, binary mixtures, soluble sugars (Brix), dispersion studies, and refractive indices of liquids, solids, powders, and opaque materials.

Features:

• Easy to calibrate and adjust; read both light transmittance and reflectance
• Select from sample illumination, momentary scale illumination, or power OFF by using the three-position switch
• Place sample directly on the measuring prism for reflection measurements
• Sample illuminator swings into position for either transmitted or reflected readings
• Internally illuminated scale gives direct readings in Refractive Index and percent dissolved sugar
• Determine optical dispersion and Nu values from dispersion dial readings
• Adjustment knob sets the dividing line and allows fine adjustments for precise readings to 0.0001 for refractive index (1.30 to 1.71nD) and 0.05% for dissolved solids readings (0 to 85% sucrose)
• Dual Amici prism compensator produces sharp dividing lines with sodium (D) illumination
• Clip assembly locks the illuminating prism in place
• Rugged, chemically resistant metal housing protects vital parts from dust, fumes, and stray liquids