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.This refractometer is connectable with Digital printer DP-AD(B) (Optional).


Specifications

Model	DR-M2
Cat.No.	1410
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)

Options

• Lighting glass for film measuerment : RE-6191
• Digital printer DP-AD (B)(Dot matrix printer) : Cat.No.3145
• Interference filter 589(D)nm : RE-3520
• Interference filter 486(F)nm : RE-3521
• Interference filter 656(C)nm : RE-3522
• Interference filter 546(e)nm : RE-3523
• Interference filter 480(F`)nm : RE-3524
• Interference filter 644(C`)nm : RE-3525
• Interference filter (select one wavelength) : RE-3526
• Interference filter 450 to 539nm : RE-3526-1
• Interference filter 540 to 680nm : RE-3526-2
• Interference filter 681 to 799nm : RE-3526-3
• Interference filter 800 to 1100nm : RE-3526-4
• Near-infrared ray viewer : RE-9119
• Eyepiece for polarizing : RE-1146