Fully Automatic Polarimeter

YJ-7100D Automatic Polarimeter

I. Main Applications:

The polarimeter is an instrument used to measure the optical rotation of substances. By determining the optical rotation of a sample, the concentration, purity, sugar content, or composition of the sample can be ascertained. It is widely used in sugar production, pharmaceuticals, drug testing, food, flavorings, monosodium glutamate, as well as in industrial production, scientific research, and educational sectors such as chemical and petroleum industries for analytical testing or process quality control.

II. Main Features:

Utilizes photoelectric detection and automatic servo mechanism control, with backlit LCD display for clear and intuitive test data. Capable of storing three repeated test results and calculating the average value.

III. Main Technical Parameters:

1. Light source: LED lamp + color filter, wavelength 589.44nm

2. Minimum measurable sample transmittance: 10%

3. Measurement range: ±45° (optical rotation)  

4. Minimum reading: 0.002° (optical rotation)

5. Accuracy: ±(0.01° + measured value × 0.05%)° (optical rotation)

6. Repeatability (standard deviation α): ≤0.01° (optical rotation) when sample transmittance is greater than 10%

7. Test tubes: 100mm   200mm

8. RS232 interface

10. Dimensions: 600mm × 320mm × 200mm

11. Net weight: 30kg

12. Photomultiplier tube uses imported tubes from Hamamatsu Photonics, Japan

13. Polarizer uses imported polarizing elements from Olympus, Japan