Double-Beam UV-Vis Spectrophotometer JK

I4S Touch-Controlled Scanning Proportional Double-Beam UV-Vis Spectrophotometer

The I4S features intuitive touch control, remote operation, scanning capabilities, and a proportional double-beam optical system. With a user-friendly interface and high precision, it offers all standard photometric functions, low noise, and broad applicability for routine analysis and scientific research.

Instrument Functions

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

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

• Wavelength scanning: Adjustable range, interval, and speed

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

• DNA/protein analysis: Direct ratio and concentration display with customizable methods

• Multi-wavelength testing: Simultaneous measurement at multiple wavelengths

• Additional functions: System utilities, spectral/data processing, report generation

Instrument Features

• Quasi-double-beam proportional monitoring: Minimizes optical and electrical drift for long-term stability

• Spacious sample compartment: Accommodates 5–100mm cuvettes and accessories

• Premium optical/electronic components: Ensures high precision and low stray light

• External Android PAD: Enables remote control; detachable for flexible operation

• Long-life deuterium lamp: Flange-mounted design eliminates optical alignment during replacement

• Real-time data storage: Power-loss protection with print/export capabilities

• Robust construction: Imported critical components for durability

• Optional PC software: Enhances data processing and storage via USB connectivity

  Item	Specification
  Model	I4S
  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	≤0.03%T (220/360nm)
  Baseline Drift (Stability)	≤0.001A/h (500nm, 0A)
  Noise	±0.15%T (0%T line); ±0.31%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	Imported long-life tungsten lamp and deuterium lamp (no optical adjustment needed)
  Display	External high-quality Android PAD
  Keyboard	External high-quality touch screen
  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	490x390x260mm
  Weight	20kg