Atago 1228 NAR-2T・HI Abbe Refractometer, Refractive index (nD) : 1.4700 to 1.8700, (for high temperature and high refractive index measurement)


ScaleRefractive index
Measurement RangeRefractive index (nD) : 1.4700 to 1.8700
Minimum ScaleRefractive Index (nD) : 0.001
Measurement AccuracyRefractive index (nD) : ±0.0002
Average dispersion valuenF-nC (to be calculated according to conversion table)
Ambient Temperature5 to 40゚C
Digital ThermometerIndication range: 0.0 to 120.0°C
(Accuracy:±0.2゚C (0~100゚C), ±0.5゚C(100~120゚C), Minimum indication: 0.1゚C)
Measurement Temperature Range0 to 120゚C
(Temperature range available of the circulating water)
Light sourceLED (Approximating to wavelength of D-Line)
Power SupplyAC100 to 240V , 50/60Hz
Dimensions & Weight12×20×25cm, 5.8kg (Refractometer)
10×11×7cm, 0.5kg (Thermometer)
Power consumption5VA
Special Order Option : The sample stage height can be customized.


· Test piece A with m-naphthalene : RE-1195

· Test piece C with m-naphthalene : RE-1197

· Test piece D for measurement of film : RE-1498

· Test piece E for measurement of film : RE-1499

· Monobromona-phthalene as contact liquid : RE-1196

· Methylene iodide containing sulfur solution : RE-1199

· Contact liquid LJ : RE-99080

· Eyepiece for polarizing : RE-1146

* Calibration Certificate : Contact an ATAGO representative for details.


* As for the other consumables & the part please view this.

*Please inform us of a serial number in the case of an order.

  • £14000.00
ATAGO's Abbe Refractometers are highly reliable instruments which measure Refractive Index. Compared with other types of refractometers, the Abbe refractometers are capable of measuring liquid and solid samples such as plate glasses, plastic sheets, and other solid films.
Calibration with waterAC outlet (AC100 to 240V)High temperature samplesCan be connected to a circulatingRefractive index scale

Designed for use with compounds that require measurement at high temperatures (up to 120°C). Capable of measuring samples from 5 to 120°C, such as substances with a melting point higher than room temperature, or compounds containing substances with a transition temperature below 120°C. Aside from liquid samples, glass, films, plastics and other solid samples can also be measured. 

This model is suitable to measure the higher refractive index of NAR-2T which enables to measure by high temperature up to 120℃. 

*Optional accessories: Circulating constant temperature bath (up to 60°C). (Pg. 5) For a circulating constant temperature bath above 61°C, please purchase separately (not available through ATAGO). 


Icons, for functions, specifications and scales have been added to this catalogue

Can be connected to a recorderCan be connected to a recorderMeasurement at a set temperatureMeasurement at a set temperature
Can be connected to a printerCan be connected to a printerAutomatic Temperature CompensationAutomatic Temperature Compensation
Alarm output for high- and low-limit valuesAlarm output for high- and low-limit valuesCan be connected to a circulating Can be connected to a circulating
RS-232C InterfaceRS-232C InterfaceContinuous measurementContinuous measurement
In-line measurementIn-line measurementHigh temperature samplesHigh temperature samples
User scales can be inputtedUser scales can be inputtedExternal Light InterferenceExternal Light Interference


Calibration with waterCalibration with waterClinical refractometersClinical refractometers
Calibration with exclusive standard liquidCalibration with exclusive standard liquidRefractive index scaleRefractive index scale
Compact and easy to carryCompact and easy to carrySalt concentration scaleSalt concentration scale
Digital displayDigital displaySeawater scaleSeawater scale
AC outlet (AC100 to 240V)AC outlet (AC100 to 240V)Wine scaleWine scale
Battery operatedBattery operated  
    • SKU
    • Commodity Codes
  • Measurement Range
    1.4700 to 1.8700
  • Measurement Accuracy
  • Measurement Temperature (°C)
    0 to 120゚C
  • Ambient Temperature (°C)
    5 to 40゚C
  • Manufacturer
    Atago Co Ltd
  • Country of Origin