SGW-532/SGW-531 High-Speed Automatic Polarimeter

Automatic Polarimeter


The instrument applies the unique and state-of-art control technology, equipped with high quality prisms. It not only greatly enhances the response speed, measurement time, and minimum transmittance when the polarimeter is testing samples, but also fully embodies the high speed, efficiency and accuracy features, which completely transformed the slow response speed and long measuring time of the traditional polarimeter. It’s a landmark’s breakthrough of polarimeter development in China. In terms of function, the user can customize up to 300 commonly used measurement methods which are pre-stored in the system. With applying the latest IT technology, the instrument can access the Internet.


Parameters/Model SGW-532 SGW-531
Measurement mode Optical rotation, specific rotation, sugar degree and concentration(Custom)
Frequently used methods 30 30
Light source Light-emitting diode(LED)

(up to 100000 hours) + precision interference filters

Working wavelength 589.44nm

(Sodium D Spectrum)

Measurement range ±90°(Rotation)  ±259°Z(Sugar)
Minimum reading 0.001° 0.001°
Accuracy ±0.004° ±0.006°
Repeatability ≤0.002° ≤0.002°
Min. transmission of samples able to be measured 0.1% 0.1%
Response speed 8°/S
Measurement time 6 times/26s
Sample temperature control Yes No
 Temperature Control mode Peltier(Built-in) No
Temperature Control range 10-50℃ No
Temperature Control accuracy ±0.2℃ No
Display 8-inch color dot matrix touch LCD
Calibration method Multi-point automatic calibration
Data storage 10000 sets 10000 sets
GMP Regulations No
Output communication interface USB/Printer/Ethernet
Test tubes 200mm 100mm(regular)    100mm(temp control) 200mm 100mm (regular)
Optional tubes    50mm(regular)

200mm(temp control)

Weight(Gross) 36kg
Dimensions 860mm  510mm  470mm


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