Proportional Double-Beam UV-Vis Spectrophotometer JK TZ-9S

TZ-9S Proportional Double-Beam UV-Vis Spectrophotometer

Large-Screen Scanning Quasi-Double-Beam UV-Vis Spectrophotometer

A large-screen, scanning-type, double-beam spectrophotometer with a user-friendly interface and simple operation. It includes all the testing functions of a conventional spectrophotometer, featuring high precision and low noise, meeting the extensive application needs of routine analysis and scientific research.

Instrument Functions

• Photometric measurement: Transmittance (T%), absorbance (Abs), energy (E)

• Quantitative testing: Concentration (C) via coefficient method or standard curve method

• Wavelength scanning (spectral scanning): Scanning range, interval, and speed can be set

• Time scanning (kinetics): Measures change patterns and calculates reaction rates

• DNA/protein determination: Direct display of ratios and concentrations; customizable methods

• Multi-wavelength testing: Simultaneously measures results at multiple arbitrary wavelengths

• Other functions: System applications, spectrum/data processing, report printing, etc.

Instrument Features

• Quasi-double-beam proportional monitoring path: Effectively suppresses drift of electrical and optical circuits, suitable for long-term testing

• Automatic wavelength calibration: Automatically performs dark current and blank correction, and switches light sources and filters

• Spacious sample chamber: Accommodates 5–100mm cuvettes and supports accessories for various tests

• High-quality optical and electronic components: Ensure high precision, low noise, and low stray light

• Large dot-matrix LCD display: Digital membrane key input, user-friendly interface, simple operation

• Long-life eco-friendly flange-mounted deuterium lamp: No optical adjustment needed when replacing the lamp

• Real-time saving of spectra and data: Retains data even after power outage; printable and exportable to PC

• Sturdy base and optical bracket: Imported key components for long-lasting durability

• Optional PC scanning software: Facilitates online operation, expanding data processing and storage capabilities

  Item	Specification
  Model	TZ-9S
  Spectral Bandwidth	2.0nm
  Wavelength Range	190 – 1100nm
  Optical System	Quasi-double-beam proportional monitoring optical path, holographic diffraction grating
  Wavelength Accuracy	±0.5nm
  Wavelength Repeatability	≤0.2nm
  Wavelength Setting	Automatic wavelength setting, wavelength resolution 0.1nm
  Photometric Range	0 – 200%T, – 0.3 – 3A, 0 – 9999C, 0 – 9999F
  Photometric Accuracy	±0.002A (0 – 0.5A), ±0.004A (0.5 – 1A), ±0.3%T (0 – 100%T)
  Photometric Repeatability	≤0.001A (0 – 0.5A), ≤0.002A (0.5 – 1A), ≤0.15%T (0 – 100%T)
  Stray Light	≤0.05%T (220/360nm)
  Baseline Drift (Stability)	≤0.001A/h (500nm, 0A)
  Noise	±0.1%T (0%T line); ±0.3%T (100%T line); ±0.0005A (at 500nm)
  Baseline Flatness	±0.0015A
  Scanning Speed	High, medium and low speeds adjustable
  Detector	Imported silicon photodiode
  Light Source	Importedodiode
  Light Source	Imported long-life tungsten lamp and deuterium lamp (no optical adjustment needed)
  Display	6-inch 320×240 dot-matrix LCD display
  Keyboard	Digital light-touch membrane keys
  Data Interface	USB port
  Print Output	Mini printer; PC printer (for online use)
  PC Software	PC scanning analysis software (optional)
  Power Supply	AC90 – 250V, 50/60Hz
  Dimensions	545×466×245mm
  Weight	20kg