Meixi UV Visible spectrophotometerTechnical indicators and basic parameters:

*Optical path structure: dual beam

*Wavelength range: 190～900nm

*Spectral bandwidth: 0.1, 0.2, 0.5nm, 1.0, 2.0, 4nm

*Wavelength accuracy: ±0.3nm

*Wavelength reproducibility: ≤ 0.1nm

*Transmittance accuracy: ±0.3% τ（0-100%τ）

±0.002A(0～0.5A) ±0.003A(0.5A～1A)

*Transmission density repeatability: 0.15% τ (0-100% τ)

±0.001A(0～0.5A)±0.0015A(0.5A～1A)

*Stray light: ≤ 0.008% τ (220nm NaI，340nm NaNO2)

*Stability: 0.0005A/h (after preheating at 500nm)

*Noise: ± 0.0002A (after preheating at 500nm)

*Baseline straightness: ±0.001A

*Measurement methods: transmittance, absorbance, concentration, energy

*Wavelength adjustment: automatic adjustment

*Luminous range:- 4～4A

*Display mode: Six inch high brightness blue LCD screen

*Detector: Imported photomultiplier tube

*Light source: imported deuterium lamp, imported tungsten lamp

*Power supply: AC 220V/50Hz 110V/60Hz

*Power: 120W

*Instrument size: 560 × 450 × 230mm

*Net weight of the host: 28Kg

Meixi UV Visible spectrophotometerInstrument features:

*UV-1900 adopts a dual beam optical system, successfully achieving the combination of high-precision and high reliability measurement, which can meet the requirements of various applications. It can be used in fields such as biological research, biotechnology, drug analysis, pharmaceuticals, teaching research, environmental protection, food hygiene, clinical testing, health and epidemic prevention.

*A wide wavelength range can meet the requirements of various fields for wavelength range.

*Six spectral bandwidths of 4nm, 2nm, 1nm, 0.5nm, 0.2nm, and 0.1nm can meet the strict requirements of pharmacopoeias and different users in various countries.

*The fully automated design concept has achieved the simplest measurement method.

*The design of large-scale integrated circuits greatly improves the scalability and reliability of the system.

*The improved and optimized optical path design, imported light sources, and receivers have resulted in high performance and reliability of the system.

*Rich measurement methods, including wavelength scanning, time scanning, multi wavelength measurement, multi derivative measurement (optional), dual wavelength, triple wavelength (optional) DNA protein measurement (optional), etc., can meet different measurement requirements and can be directly displayed on a 6-inch large screen.

*According to user requirements, single hole racks, manual four link racks, manual eight link racks, automatic eight link racks, glass brackets, test tube racks, 1cm color comparison racks, 5cm color comparison racks, 10cm color comparison racks, etc. can be selected.

*The measurement data can be output through a printer with a USB interface.

*It can be powered off to save measurement parameters and data, making it convenient for users to use.

*More precise and flexible measurements can be achieved through PC control, meeting the needs of different users.