Puxi TU1901 UV-Visible Spectrophotometer Dual-beam Dynamic Feedback Proportional Recording Photometric System

Features:

Stable Instrument Performance

Stable optical and mechanical systems ensure stray light performance.

Reliable Instrument Quality

The dual-beam dynamic feedback proportional recording photometric system ensures baseline stability.

Key components such as deuterium lamps and photomultiplier tubes use imported parts, ensuring instrument stability, reliability, and longevity.

Easy Human-Machine Interaction

The UVWin Chinese operating software, designed based on the Windows environment, provides rich instrument control and operation functions. It is simple, easy to use, flexible, and effortlessly meets users' analytical needs.

Expandability

Accessories such as peristaltic samplers, ultra-micro cell holders, constant temperature cell holders, optical integrating spheres, mirror reflection, fiber optic attachments, and cuvette systems are available. Users can select accessories to expand the instrument's application range.

Technical Parameters:

Wavelength range: 190 nm to 900 nm

Wavelength accuracy: ±0.3 nm (automatically calibrated upon startup)

Wavelength repeatability: ≤0.15 nm

Spectral bandwidth: TU-1900: 2 nm

TU-1901: 0.1 nm, 0.2 nm, 0.5 nm, 1.0 nm, 2.0 nm, 5.0 nm

Stray light: ≤0.01% T (220 nm, NaI), ≤0.05% T (360 nm, NaNO?)

Light source switching: Automatic (can be set arbitrarily within the 320 nm to 380 nm range)

Photometric modes: Transmittance, absorbance, reflectance, energy

Photometric range: -4.0 Abs to 4.0 Abs

Photometric accuracy: ±0.002 Abs (0 Abs to 0.5 Abs)

±0.004 Abs (0.5 Abs to 1.0 Abs)

±0.3% T (0% to 100% T)

Photometric repeatability: 0.001 Abs (0 Abs to 0.5 Abs), 0.002 Abs (0.5 Abs to 1 Abs)

Baseline flatness: ±0.001 Abs

Baseline drift: ≤0.2% T/h

Noise: 0% noise: ≤0.05% T

100% noise: ≤0.2% T