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ATAGO's Multi-Wavelength Abbe Refractometers have the ability to measure liquids or solids at different wavelengths using interchangeable filters. Measurements are displayed digitally for easy reading.

Multi-Wavelength Abbe Refractometer DR-M2

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-22 (B) (Optional).

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$Refractive index scale$

Model	DR-M2	Cat.No.	1410
Measurement 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	Measurement Accuracy	Refractive index : ±0.0002 ( With the attached test piece at 589nm )
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 )
Measurement Temperature Range	5 to 50°C	Output Terminal	For printer, DP-22 (B) (Optional)
Power Supply	AC100 to 240V 50/60Hz	Power Consumption	160VA
Dimensions & Weight	13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.0kg (Light source unit)
Optional	• Lighting glass for film measuerment (for DR-M2) : RE-6191 • Digital printer DP-22(B) : Cat.No.3125 • Interference filter 589(D)nm : RE-3520 486(F)nm : RE-3521 656(C)nm : RE-3522 546(e)nm : RE-3523 480(F')nm : RE-3524 644(C')nm : RE-3525 (select one wavelength) : RE-3526 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1110nm • Near-infrared ray viewer : RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece A with m-naphthalene : RE-1195 • Main & secondary prism for DR-M2 : RE-1600 • Illuminating lamp for DR-M2, M4 : RE-4170 • Pack of desiccant tablets : RE-1592

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Multi-Wavelength Abbe Refractometer DR-M4

Refractive index or Abbe number ( νd or νe ) can be measured at different wavelengths ranging from 450 to 1,100nm ( For measurement at wavelengths ranging from 681 to 1,100nm, the Optional Near Infrared Ray Viewer ( RE-9119 ) is required. )
The DR-M4 displays measurement result of refractive index or Abbe number digitally 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-22 (B) (Optional).

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$Refractive index scale$

Model	DR-M4	Cat.No.	1414
Measurement Range	Refractive index 1.5219 to 1.9220 ( Wavelength 450nm ) Refractive index 1.4700 to 1.8700 ( Wavelength 589nm ) Refractive index 1.4545 to 1.8544 ( Wavelength 680nm ) Refractive index 1.4260 to 1.8259 ( Wavelength 1,100nm )
Minimum Indication	Refractive index : 0.0001 Abbe number : 0.1	Measurement Accuracy	Refractive index : ±0.0002 ( With the attached test piece at 589nm )
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 )
Measurement Temperature Range	5 to 50°C	Output Terminal	For printer, DP-22(B) (Optional)
Power Consumption	160VA	Power Supply	AC100 to 240V 50/60Hz
Dimensions & Weight	13×29×31cm, 6.0kg ( Refractometer ) 15×33×11cm, 3.0kg ( Light source unit )
Optional	• Lighting glass for film measuerment (for DR-M4) : RE-6193 • Digital printer DP-22(B) : Cat.No.3125 • Interference filter 589(D)nm :RE-3520 486(F)nm :RE-3521 656(C)nm :RE-3522 546(e)nm :RE-3523 480(F')nm :RE-3524 644(C')nm :RE-3525 (select one wavelength) : RE-3526 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1110nm • Near-infrared ray viewer :RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece C with m-naphthalene : RE-1197 • Main & secondary prism for DR-M4, DR-M4/1550 : RE-1640 • Illuminating lamp for DR-M2, M4 : RE-4170 • Pack of desiccant tablets : RE-1592

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Multi-Wavelength Abbe Refractometer DR-M2/1550(A) < AC200 to 240V >

Refractive index or Abbe number ( νd or νe ) can be measured at different wavelengths ranging from 450 to 1,550nm. This refractometer digitallys display measurement result of refractive index or Abbe number on the LCD. This measurement can be achieved by matching the boundary line withthe intersection point of the cross hairs This is connectable with Digital printer DP-22 (B) (Optional).

Quantity

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$Refractive index scale$

Model	DR-M2/1550(A)	Cat.No.	1412
Measurement Range	Refractive index 1.3278 to 1.7379 ( at 450nm ) Refractive index 1.3000 to 1.7100 ( at 589nm ) Refractive index 1.2912 to 1.7011 ( at 680nm ) Refractive index 1.2743 to 1.6840 ( at 1,100nm ) Refractive index 1.2662 to 1.6759 ( at 1,550nm )
Minimum Indication	Refractive index : 0.0001 Abbe number : 0.1	Measurement Accuracy	Refractive index : ±0.0002 ( With the attached test piece at 589nm )
Wavelength Range	450 to 1550nm *With interference filters	Measurement Temperature Range	5 to 50°C
Main Components	Refractometer, Power supply unit, Monochromatic light source device, Near infrared ray viewer, Interference filter ( 589nm ).
Output Terminal	For printer, DP-22(B) (Optional)	Light source	Monochromatic light source device Dimensions & Weight :23×35×21 to 31cm, 5.9kg
Power Supply	AC100 to 240V 50/60Hz Monochromatic light source device AC 200 to 240V 50/60Hz	Power Consumption	100VA(Refractometer, Power supply unit)
Dimensions & Weight	13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.0kg (Power supply unit)
Optional	• Lighting glass for film measuerment (for DR-M2) : RE-6191 • Digital printer DP-22(B) : Cat.No.3125 • Interference filter 589(D) nm : RE-16501 486(F) nm : RE-16502 656(C) nm : RE-16503 546(e) nm : RE-16504 480(F') nm : RE-16505 644(C') nm : RE-16506 (select one wavelength) : RE-16507 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1550nm • Frame for Interference Filter DR-M2/1550(A), DR-M4/1550(A) 589nm : RE-16511 486nm : RE-16512 656nm : RE-16513 546nm : RE-16514 480nm : RE-16515 644nm : RE-16516 Frame for Interference Filter of Optional :RE-16517 • Near-infrared ray viewer : RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece A with m-naphthalene : RE-1195 • Main & secondary prism for DR-M2/1550(A) : RE-16500 • Pack of desiccant tablets : RE-1592

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Multi-Wavelength Abbe Refractometer DR-M2/1550(B) < AC100 to 110V >

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$Refractive index scale$

Model	DR-M2/1550(B)	Cat.No.	1413
Measurement Range	Refractive index 1.3278 to 1.7379 ( at 450nm ) Refractive index 1.3000 to 1.7100 ( at 589nm ) Refractive index 1.2912 to 1.7011 ( at 680nm ) Refractive index 1.2743 to 1.6840 ( at 1,100nm ) Refractive index 1.2662 to 1.6759 ( at 1,550nm )
Minimum Indication	Refractive index : 0.0001 Abbe number : 0.1	Measurement Accuracy	Refractive index : ±0.0002 ( With the attached test piece at 589nm )
Wavelength Range	450 to 1550nm *With interference filters	Measurement Temperature Range	5 to 50°C
Main Components	Refractometer, Power supply unit, Monochromatic light source device, Near infrared ray viewer, Interference filter ( 589nm ).
Output Terminal	For printer, DP-22(B) (Optional)	Light source	Monochromatic light source device Dimensions & Weight :23×32×21 to 31cm, 5.0kg
Power Supply	AC100 to 240V 50/60Hz Monochromatic light source device AC 100 to 110V 50/60Hz	Power Consumption	100VA(Refractometer, Power supply unit)
Dimensions & Weight	13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.0kg (Power supply unit)
Optional	• Lighting glass for film measuerment (for DR-M2) : RE-6191 • Digital printer DP-22(B) : Cat.No.3125 • Interference filter 589(D) nm : RE-16501 486(F) nm : RE-16502 656(C) nm : RE-16503 546(e) nm : RE-16504 480(F') nm : RE-16505 644(C') nm : RE-16506 (select one wavelength) : RE-16507 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1550nm • Frame for Interference Filter DR-M2/1550(B), DR-M4/1550(B) 589nm : RE-16511 486nm : RE-16512 656nm : RE-16513 546nm : RE-16514 480nm : RE-16515 644nm : RE-16516 Frame for Interference Filter of Optional :RE-16517 • Near-infrared ray viewer : RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece A with m-naphthalene : RE-1195 • Main & secondary prism for DR-M2/1550(B) : RE-16500 • Pack of desiccant tablets : RE-1592

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Multi-Wavelength Abbe Refractometer DR-M4/1550(A) < AC200 to 240V >

Refractive index or Abbe number ( νd or νe ) can be measured atdifferent wavelengths ranging from 450 to 1,550nm. This refractometer digitallys display measurement result of refractive index or Abbe number on the LCD. This measurement can be achieved by matching the boundary line withthe intersection point of the cross hairs This is connectable with Digital printer DP-22 (B) (Optional).

Quantity

>about the icons

$Refractive index scale$

Model	DR-M4/1550(A)	Cat.No.	1415
Measurement Range	Refractive index 1.5219 to 1.9155 ( at 450nm ) Refractive index 1.4700 to 1.8700 ( at 589nm ) Refractive index 1.4561 to 1.8544 ( at 680nm ) Refractive index 1.4310 to 1.8259 ( at 1,100nm ) Refractive index 1.4215 to 1.8136 ( at 1,550nm )
Minimum Indication	Refractive index : 0.0001 Abbe number : 0.1	Measurement Accuracy	Refractive index ±0.0002 (with the attached test piece at 589nm )
Wavelength Range	From 450 to 1,550nm ( with interference filters )	Measurement Temperature Range	5 to 50°C
Main Components	Refractometer, Power supply unit, Monochromatic light source device, Near infrared ray viewer, Interference filter ( 589nm ) .
Output Terminal	For printer, DP-22(B) (Optional)	Light source	Monochromatic light source device Dimensions & Weight :23×35×21 to 31cm, 5.9kg
Power Supply	AC100 to 240V 50/60Hz Monochromatic light source device AC 200 to 240V 50/60Hz	Power Consumption	100VA(Refractometer, Power supply unit)
Dimensions & Weight	13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.0kg (Power supply unit)
Optional	• Lighting glass for film measuerment (for DR-M4) : RE-6193 • Digital printer DP-22(B) : Cat.No.3125 • DR-M2/1550(A), DR-M4/1550(A) Interference filter 589(D)nm : RE-16501 486(F)nm : RE-16502 656(C)nm : RE-16503 546(e)nm : RE-16504 480(F')nm : RE-16505 644(C')nm : RE-16506 (select one wavelength) : RE-16507 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1550nm • Frame for Interference Filter DR-M2/1550(A),DR-M4/1550(A) 589nm : RE-16511 486nm : RE-16512 656nm : RE-16513 546nm : RE-16514 480nm : RE-16515 644nm : RE-16516 Frame for Interference Filter of Optional : RE-16517 • Near-infrared ray viewer : RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece C with m-naphthalene : RE-1197 • Main & secondary prism for DR-M4/1550(A) : RE-1640 • Pack of desiccant tablets : RE-1592

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Multi-Wavelength Abbe Refractometer DR-M4/1550(B) < AC100 to 110V >

Refractive index or Abbe number ( νd or νe ) can be measured atdifferent wavelengths ranging from 450 to 1,550nm. This refractometer digitallys display measurement result of refractive index or Abbe number on the LCD. This measurement can be achieved by matching the boundary line withthe intersection point of the cross hairs This is connectable with Digital printer DP-22 (B) (Optional).

Quantity

>about the icons

$Refractive index scale$

Model	DR-M4/1550(B)	Cat.No.	1416
Measurement Range	Refractive index 1.5219 to 1.9155 ( at 450nm ) Refractive index 1.4700 to 1.8700 ( at 589nm ) Refractive index 1.4561 to 1.8544 ( at 680nm ) Refractive index 1.4310 to 1.8259 ( at 1,100nm ) Refractive index 1.4215 to 1.8136 ( at 1,550nm )
Minimum Indication	Refractive index : 0.0001 Abbe number : 0.1	Measurement Accuracy	Refractive index ±0.0002 (with the attached test piece at 589nm )
Wavelength Range	From 450 to 1,550nm ( with interference filters )	Measurement Temperature Range	5 to 50°C
Main Components	Refractometer, Power supply unit, Monochromatic light source device, Near infrared ray viewer, Interference filter ( 589nm ) .
Output Terminal	For printer, DP-22(B) (Optional)	Light source	Monochromatic light source device Dimensions & Weight :23×32×21 to 31cm, 5.0kg
Power Supply	AC100 to 240V 50/60Hz Monochromatic light source device AC 100 to 110V 50/60Hz	Power Consumption	100VA(Refractometer, Power supply unit)
Dimensions & Weight	13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.0kg (Power supply unit)
Optional	• Lighting glass for film measuerment (for DR-M4) : RE-6193 • Digital printer DP-22(B) : Cat.No.3125 • DR-M2/1550(B), DR-M4/1550(B) Interference filter 589(D)nm : RE-16501 486(F)nm : RE-16502 656(C)nm : RE-16503 546(e)nm : RE-16504 480(F')nm : RE-16505 644(C')nm : RE-16506 (select one wavelength) : RE-16507 450 to 539nm 540 to 680nm 681 to 799nm 800 to 1550nm • Frame for Interference Filter DR-M2/1550(B),DR-M4/1550(B) 589nm : RE-16511 486nm : RE-16512 656nm : RE-16513 546nm : RE-16514 480nm : RE-16515 644nm : RE-16516 Frame for Interference Filter of Optional : RE-16517 • Near-infrared ray viewer : RE-9119 • Eyepiece for polarizing : RE-1146 * Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Test piece C with m-naphthalene : RE-1197 • Main & secondary prism for DR-M4/1550(B) : RE-1640 • Pack of desiccant tablets : RE-1592

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Circulating Constant Temperature Bath 60-C3

The 60-C3 is an external circulation type constant temperature water tank provided with a thermo-module. The temperature can be set in the range of 10 to 60°C and the unit is perfectly suited for connection with a refractometer.

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Model	60-C3	Cat.No.	1921
Tank Capacity	0.5 lit	Temperature Setting Range	10 to 60°C ( water )
Constant-Temperature Accuracy	±0.2°C	Temperature control	PID control method using a thermo-module
Power Consumption	430VA	Flow Rate	4 lit / min
Power Supply	AC 100 to 240V, 50/60Hz	Dimensions & Weight	38×24×27cm, 11.0kg (Main Unit only)

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Digital printer DP-21(A)

The DP-21(A) is a printer for Multi-wavelength Abbe Refractometer DR-M2, DR-M4, DR-M2/1550 and DR-M4/1550 (Serial No.~092031).
It automatically prints out the number of samples, measurement results, and measured temperature whenever the refractometer completes measurement.

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Model	DP-21(A)	Cat.No.	3011
Printing Method	Thermal dot printing	Power Supply	From AC adapter ( for the printer )
Power Consumption	26VA	Dimensions & Weight	14×10×4cm, 390g (Main Unit only)
Optional	* Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Printer paper for DP-21(A) : RE-8413 • Printer paper (long-term storage) for DP-21(A) : RE-8415

Digital printer DP-22(B)

The DP-22(B) is a printer for Multi-wavelength Abbe Refractometer DR-M2, DR-M4, DR-M2/1550 and DR-M4/1550 (Serial No.092101~).
It automatically prints out the number of samples, measurement results, and measured temperature whenever the refractometer completes measurement.

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Model	DP-22(B)	Cat.No.	3125
Printing Method	Thermal dot printing	Power Supply	From AC adapter ( for the printer )
Power Consumption	26VA	Dimensions & Weight	14×10×4cm, 390g (Main Unit only)
Optional	* Calibration Certificate : Contact an ATAGO representative for details.
Parts	• Printer paper for DP-22(B) : RE-8413 • Printer paper (long-term storage) for DP-22(B) : RE-8415