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Optical Instruments » TJ270-30 Double-Beam Infrared Spectrophotometer

Introduction

TJ270-30 Double-beam Infrared Spectrophotometer can be used to record IR absorption and reflecting spectra within the range of 4000 ~ 400 cm-1. Qualitative and quantitative analysis can be completed according to the spectra of the sample. It is an powerful tool to analyze the sample structure in the fields of petroleum, chemical engineering, pharmacy, public health environmental protection, etc.

Features
  • Computer controlled direct-proportioned recording and database processing
  • Users can build up their own spectra library
  • A High quality thermocouple used as a receiver
  • Low stray light and high accuracy measurement
  • Simple structure and easy to operate
Main functions
  • Spectral background baseline memory and correction
  • Spectrum smoothing, differential, accumulating and arithmetic operation
  • Spectral peak checkout
  • Conversion of %T and ABS
  • Spectrum scale Extension
Specifications

Wave-number Range 4000-400 cm-1
Wave-number Accuracy ≤ ±4 cm-1 (4000~2000 cm-1 ),≤ ±2 cm-1 (2000~400 cm-1)
Resolution 1.5 cm-1 (near to 1000 cm-1)
Transmittance Accuracy ±0.2%T (noise level not included)
Io Line Flatness and Straightness ±2%T
Stray Light ≤ 0.5%T (4000~650 cm-1) .1%T (650~400 cm-1)
Abscissa Extension x0.5, x1, x2, x5 and x10
Ordinate Extension From x0.25 to x50
Test Mode transmittance, absorbency and single beam
Scanning Speed 5 steps (very fast, fast, normal, slow and very slow)
Slit Width 5 steps (very wide, wide, normal, narrow and very narrow)
Response 5 steps (very fast, fast, normal and slow)
Operation Mode continuous, repeated scanning and fixed wavelength scanning
Power Supply AC110V/220V, 50/60Hz

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