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ATAGO's Polarimeters measure the optical rotation of optically active substances such as saccharide, ascorbic acid, sodium glutamate and others.

Automatic Polarimeter AP-300

Our AP-300 has received
 2003  “Itabashi Technology Gold Prize”

The AP-300 fully automatic polarimeter measures a sample easily by setting the observation tube ( filled with a liquid sample ) in the sample chamber and pressing START.
Digitally displayed measurement values are large and easy to read. The AP-300 generally used in pharmaceutical, perfume, cosmetic, industrial, chemical, and food factories is the best for measuring the angle of rotation. In addition, the built in International Sugar Scale is used widely in sugar factories.


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>about the icons Automatic Temperature Compensation Can be connected to a printer RS-232C Interface Digital display AC outlet (AC100 to 240V)
Model AP-300 Cat.No. 5291
Measurement Scales Angle of Rotation ,
International Sugar Scale (without temperature compensation) ,
International Sugar Scale (with Automatic Temperature Compensation)
Measurement Readings Angle of Rotation,
International Sugar Scale (without temperature compensation) ,
International Sugar Scale (with Automatic Temperature Compensation ) ,
Specific Optical Rotation, Concentration, and Purity
Measurement Range Angle of Rotation
-89.99 to +89.99°
International Sugar Scale
-130.00 to +130.00°Z
Minimum Indication Angle of Rotation: 0.01°
International Sugar Scale: 0.01°Z
Measurement Accuracy Angle of Rotation : 0.01°
International Sugar Scale
±0.03°Z
( Checked by reading a standard Quartz Plate )
Temperature correction range for International Sugar Scale 18.0 to 30.0° C
Manual Calibration Enables manual calibration by measuring a standard Quartz Plate Display Panel Color LCD with backlight
Measurement Wavelength 589nm(D-line) Power Supply AC100V to 240V 50/60Hz
Power Consumption 50VA Output Terminals Digital Printer DP-63
or DP-AD  ( Optional )
•RS-232C
Dimensions & Weight 48.5×28.5×17.5cm, 11.5kg (Main Unit only) Accessories 100mm ( 5ml ) , 200mm ( 10ml ) Observation tube ( 1each )
Optional Digital Printer DP-63 : Cat.No.3118
Digital printer DP-AD : Cat.No.3123
•Observation tube 100mm long OT-100 (A) : RE-72001
•Observation tube 200mm long OT-200 (A) : RE-72002
•Jacketed flow tube 100mm : RE-72034
•Jacketed flow tube 200mm : RE-72035
•Jacketed flow tube 50mm : RE-72036
•Jacketed flow tube with funnel 100mm : RE-72033
•Jacketed flow tube with funnel 200mm : RE-72032
Quartz control plate 34° : RE-72013
Quartz control plate 17° : RE-72014
Quartz control plate 8.5° : RE-72015
Quartz control plate ISS 25°Z : RE-72016
Quartz control plate ISS 50°Z : RE-72017
Quartz control plate ISS 99°Z : RE-72018
Parts •Deck glass : RE-6712
•Rubber packing for observation tube : RE-6713
•Ring nut for observation tube : RE-6714
•Light source unit : RE-74804
Printer paper (regular) for DP-63 : RE-8412
Printer paper (long-term storage) for DP-63 : RE-8414
Printer paper for DP-AD : RE-89403
Ribbon cassette for DP-AD : RE-89402
USA Suggested List Price $9,95000
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Digital Printer DP-63

The DP-63 is a printer for Automatic Polarimeter AP-300. It automatically prints out Angle of rotation, International sugar scale, Specific optical rotation, Concentration, Purity, Length of observation tube, Measurement temperature, Sample number Date, Month, Year and Time.


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Model DP-63 Cat.No. 3118
Printing Method Thermal dot printing Power Supply AC adapter ( Input voltage : AC100 to 240V )
Power Consumption 13VA Dimensions & Weight 17×16×7cm, 580g (Main Unit only)
Parts Printer paper (regular) for DP-63 : RE-8412
Printer paper (long-term storage)for DP-63 : RE-8414
USA Suggested List Price $92500
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Digital printer DP-AD

The DP-AD is a printer for Automatic Polarimeter AP-300. It automatically prints out Angle of rotation, International sugar scale, Specific optical rotation, Concentration, Purity, Length of observation tube, Measurement temperature, Sample number Date, Month, Year and Time.The DP-AD uses regular rolled plain paper (not thermal).


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Model DP-AD Cat.No. 3123
Printing method Impact dot printing Power Supply From AC adapter ( Input voltage:AC100 to 240V )
Power consumption 7VA Dimensions & weight 11×18×9cm, 470g(Main Uint only)
Parts Printer paper for DP-AD : RE-89403
Ribbon cassette for DP-AD : RE-89402
USA Suggested List Price $97500
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Polarimeter POLAX-2L

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.


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>about the icons Digital display AC outlet (AC100 to 240V)
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 : 0.1°Z
Measurement Accuracy Angle of rotation : ±0.10° Measurement temperature range 5 to 40° C
Light Source LED with interference filter ( 589nm ) Accessories Observation tubes : 100mm tube and 200mm tube / each
Power Supply AC100 to 240V 50/60Hz Dimensions & Weight 43×22×30cm, 11.5kg (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 •Adapter for setting polarizer : RE-8766
Quartz control plate 34° : RE-72013
Quartz control plate 17° : RE-72014
Quartz control plate 8.5° : RE-72015
Quartz control plate ISS 25°Z : RE-72016
Quartz control plate ISS 50°Z : RE-72017
Quartz control plate ISS 99°Z : RE-72018
Parts •Observation tube 100mm long OT-100 (P) : RE-6705
•Observation tube 200mm long OT-200 (P) : RE-6706
•Small volume tube 100mm long (OT-100M) : RE-6708
•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
USA Suggested List Price $4,89500
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