Manual, Semi-Automatic & High-Speed Fully Automatic Polarimeters

Yatherm Scientific manufactures and supplies customized and standard exclusive line of Manual, Semi-Automatic & High-Speed Automatic Polarimeter, This instrument is designed for measuring the optical rotation of substances. Through measuring the optical rotation, the concentration, content, and purity of the substance can be determined. The instrument is widely used in sugar refining, pharmaceuticals, petroleum, food, chemical and a lot of industrial sectors and related institutions of colleges and research institutes.

Manual Polarimeter


It is Easy-to-use Manual Polarimeter, the measuring range is from -180 to +180 degrees. Yatherm Scientific instrument is suitable for measuring the optical rotation of optically active substances with Accuracy: 0.05 degrees.


The instrument is equipped with a 589nm sodium lamp. Switch on the power, the polarized light beam immediately radiates to a polarizer filter. You can observe distinct visual fields through the eyepiece. Put the sample tube into the measuring field chamber, rotate the vernier knob and find an equal brightness. Reading and recording the measured value from scale disc, testing is completed.

  • Research and development
  • Colleges and Universities
  • The chemical and pharmaceutical industry
  • Food and sugar industry
Model POLMAN 180
Measuring Range -180°~180°
Scale Value
Vernier 0.05°
Magnifier 3X
Light Source Sodium Lamp
Wavelength 589.44nm
Test Tube 50/100/200mm
Power Requirements 220V/50Hz
Dimensions 500(L)×135(W)×330(H)mm
Weight 5kg

Optional Accessories

100mm Polarimeter Tube
200mm Polarimeter Tube
Sodium Lamp
Semi-Automatic Polarimeter


  • 5 inches touch screen.
  • Four measurement modes.
  • LED light source
  • Inbuilt temperature sensor for the sample.
  • Auto-zero features
  • Selectable tube lengths (100 and 200mm).
  • Automatic temperature compensation
  • Up to 3 points Calibration
  • An automatic message display helps the user quickly begin using the instrument.
  • Storage for 100 readings.
  • Built-in real-time clock stamps stored data to meet GMP standards.
  • USB communication interface.
  • Real time working manual.
  • Reset feature for factory default options. 
Technical Specifications:
Model POL- SA 200
Measurement Modes Optical Rotation, Specific Rotation, ConcentrationInternational Sugar Scale
Measuring Range +/-90°, +/-130°Z
Accuracy +/-0.02°, +/-0.05°Z
Resolution 0.005°
Calibration Points 1-3 points
Wavelength 589nm
Light Source LED, interference filter
Temperature Range 0-100℃
Temperature Accuracy +/-0.5℃
Test Tube 100 or 200mm
Memory Stores up to 100data sets
Output USB communication interface
Display 5.6-inch touch screen
Power AC 220V/50Hz
Dimensions & Size 550x300x220mm, 7.5kg

High-Speed Automatic Polarimeter
Model No. POL – 568 ,  POL – 533,  POL – 532,  POL – 531



 Yatherm Scientific instrument applies to the unique and state-of-art control technology, equipped with a quality prism used for all our customers. These are the top models come with GMP compliance, fulfill WHO Norms required to use in pharmaceutical and food industries.

These Yatherm instruments not only enhance the response speed only, but also the instruments measurement time, and minimum transmittance when the polarimeter used for testing samples.

High speed, efficiency and accuracy features, which makes the instrument a quality product in comparison to the traditional polarimeter. Yatherm Polarimeter can customize up to 300 commonly used measurement methods that are pre-stored in the system. This Instrument can easily access to the internet with the help of IT professionals.

Specifications High-Speed Automatic Polarimeter:
Parameters/Model POL – 568 POL  –  533 POL – 532 POL – 531
Measurement mode Optical rotation, specific rotation, sugar degree and concentration(Custom)
Frequently used methods 300 300 30 30
Light source Light-emitting diode(LED)(up to 20,000 hours) + precision interference filters
Working wavelength 589.44nm(Sodium D Spectrum)
Measurement range ±90°(Rotation)  ±259°Z(Sugar)
Minimum reading 0.0001° 0.001° 0.001° 0.001°
Accuracy ±0.003° ±0.004° ±0.004° ±0.006°
Repeatability ≤0.002° ≤0.002° ≤0.002° ≤0.002°
Min. transmission of samples able to be measured 0.01% 0.1% 0.1% 0.1%
Response speed 8°/S
Measurement time 6 times/26s
Sample temperature control Yes No
Control mode Peltier(Built-in) No
Control range 10-50℃ No
Control accuracy ±0.2℃ No
Operation system WINDOWS No No
Display 8-inch color dot matrix touch LCD
Calibration method Multi-point automatic calibration
Data storage 16G Database 10000 sets 5000 sets
GMP Regulations Qualified
Output communication interface USB/Keyboard/Mouse/Universal Printer/VGA/Ethernet/Optical wireless card for wireless internet access USB/Printer/Ethernet
Test tubes 200mm 100mm(regular)    100mm(temp control)
Optional tubes 50mm(regular)     200mm(temp control) 50mm(regular)
Weight(Gross) 36kg
Dimensions 860mm  510mm  470mm

Quotation Request Form