The drk8065-5 automatic polarimeter has a multi-wavelength selection function. On the basis of the conventional 589nm wavelength, 405nm, 436nm, 546nm, 578nm, 633nm working wavelengths are added. The temperature control device in the instrument has heating and cooling functions. If a temperature-controlled test tube is used, the optical rotation of the sample can be controlled for temperature measurement. The large-screen touch LCD on the instrument provides a WINDOWS operation interface, which is simple, intuitive, stable and reliable. Product Description The main technical parameters Measurement mode: optical rotation, specific rotation, concentration, sugar content Light source: 20W halogen tungsten lamp Working wavelength: 405 nm, 436nm, 546nm, 578nm, 589nm, 632nm are optional Standard configuration: two wavelengths (recommended 546nm, 589nm) Optional wavelength: 405 nm, 436nm, 578nm, 632nm Measuring range: ±89.999° (optical rotation) Minimum reading: 0.001° Indication error: ±0.01°(﹣15°≤optical rotation ≤+15°) ±0.02° (when the optical rotation is less than 15° or when the optical rotation is greater than +15°) Repeatability (standard deviation s): 0.002° (when -45°≤optical rotation≤+45°) 0.005°(when optical rotation <-45° or optical rotation>+45°) Temperature control range: 15℃-30℃ Temperature control accuracy: ±0.5℃ Display mode: 7-inch color dot matrix LCD touch screen display Operating system: WINDOWS Test tube: 200mm, 100mm common type, 100mm temperature control type Output communication interface: USB interface Data storage: 1500 sets of data U disk export: picture or data format file Power supply: 220V±22V, 50Hz±1Hz, 250W Instrument size: 710mm×365mm×235mm Net weight of the instrument: 36kg