Abbe refractometer DR-M2

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Refractive index or Abbe number (νd or νe) can be measured at different wavelengths ranging from 450 to 1,100nm.The DR-M2 digitally displays measurement result of refractive index or Abbe number on the LCD.Measurement can be achieved by matching the boundary line with the intersection point of the cross hairs. Scale - Refractive index Abbe number Range - Refractive index 1.3278 to 1.7379 (Wavelength 450nm) Refractive index 1.3000 to 1.7100 (Wavelength 589nm) Refractive index 1.2912 to 1.7011 (Wavelength 680nm) Refractive index 1.2743 to 1.6840 (Wavelength 1,100nm) Minimum Indication - Refractive index : 0.0001 Abbe number : 0.1 Accuracy - Refractive index : ±0.0002 (With test piece at 500 to 650nm) Measurement Temp. - 5 to 50ﾟC (With circulating constant water bath) Display Panel - LCD Light source - Halogen lamp Output - For printer, DP-AD (B) (Optional) Wavelength Range - From 450 to 1100nm (with interference filters) (For measurement at wavelengths ranging from 681 to 1100nm, the Near Infrared Ray Viewer (Optional is required) Dimensions & Weight - 13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.2kg (Light source unit)