Atago 5223 Automatic Polarimeter POLAX-2L, Angle of Rotation : -179.95° to +180.00°, 589nm Measurement Wavelength

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Model POLAX-2L Cat.No. 5223
Measurement Range Angle of rotation :
-179.95° to +180.00°
International sugar scale
-130.0 °Z to +130.0 °Z
Minimum Indication Angle of rotation 0.05°
International sugar scale
Measurement Accuracy Angle of rotation ± 0.10°
International sugar scale
Measurement temperature range 5 to 40°C
Light Source LED with interference filter Measurement Wavelength 589nm (equivalent to the sodium-D line spectrum)
Accessories Included RE-6720 Observation tubes : 100mm tube and 200mm tube / each 
Power Supply AC100 to 240V 50/60Hz Dimensions & Weight 43×22×30cm, 10.3kg
(Main Unit only)
Operation switches  R ( + ) = Right rotation switch : Rotates the analyzer slowly to the right. L ( - ) = Left rotation switch : Rotates the analyzer slowly to the left. temp = Shift / Temp switch : Pressing this switch simultaneously with either ( + ) switch or the ( - ) switch will provide a faster rotation ( in the shift mode ).* When this switch is pressed for 2 seconds or more, the temperature of the sample chamber is indicated on the display panel (until the switch is released from pressing).
Optional • Unjacketed Flow Tube (Glass) 50mm/4.5mL : RE-72051
• Unjacketed Flow Tube (Glass) 100mm/9mL : RE-72052
* Calibration Certificate 
Parts • Deck glass : RE-6712
• Rubber packing for observation tube : RE-6713
• Ring nut for observation tube : RE-6714
• Rubber packing for small volume tube : RE-6715
• Ring nut for small volume tube : RE-6717
• Midget fuse (1A) : RE-5784

Polarimeter, which is known as an optical rotation meter, is an instrument to measure optical rotation of "optically active matter" such as saccharin, ascorbic acid and sodium glutamate.

Long Lasting LED

"LED" which has a long life and lights overwhelmingly fast in comparison with a sodium lamp is used as a light source. The wavelength of 589nm equivalent to D-line of the sodium is ensured by using interference filter together with "LED". 

Digital Display

Look through the eyepiece and match the brightness at the left and right of the visual field with push-button switches. Measurement value is 

Smooth Measurements

Push button switches are used to the rotate the analyser. In addition to the right (+) and left (-) switches , the POLAX-2L has the shift/temp switch with which the rotation speed can changed in two steps.


  • International sugar scale (°Z) is used for sugar measurement and polarimeter is essential instruments for this procedure
  • Many optically active materials used in food additives , flavouring and perfumes, the polarimetric analysis is widely applied.  
  • Polarimeter is widely used for educational purposes in the field of "Physics" and "Applied Science" course for understanding polarized light, optical rotation, optical active substances and optical activity.
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    • Commodity Codes
  • Manufacturer
    Atago Co Ltd
  • Country of Origin