FT-IR 4000-series

Includes many features found in the research grade FT/IR-6000 Series

A powerful Mid-IR FTIR spectrometer (wavenumber range 7800 to 350 cm-1), with many features that you find in a research grade instrument

Ideal for high resolution applications

The FT/IR-4700 has features similar to the FT/IR-4600 but with higher resolution 0.4cm-1 and S/N over 35,000:1, making it ideal for high resolution applications such as gas analysis.

  • ● Wavenumber range, with standard DLaTGS detector 7800 to 350 cm-1
  • ● Optional NIR and Far IR options with fixed beam splitter and two detector positions
  • ● Comprehensive range of sampling accessories with IQ Accessory recognition for solids, liquids and gases
  • ● Built-in automated validation with polystyrene and glass filters
  • ● A full range of sampling accessories with IQ accessory recognition
  • ● Vibration-proof optical bench
  • ● Large sample compartment
  • ● Corner-cube (retro-reflective) mirrors with automatic energy alignment
  • ● Individually purgeable sections: interferometer, sample compartment and detector housing
  • ● High sensitivity DLaTGS detector
  • ● Options for FTIR microscopy and IR Imaging
  • ● Rapid scan with interval scan for fast kinetic measurement
  • ● Wavenumber extension for NIR, mid-IR and far-IR
  • ● Optional 21 CFR part 11, IQ OQ and GxP compliance

Product Specialist

Mats Grapne

"More than 30 years experience in the field of HPLC, Spectroscopy and other analytical equipments. Contact me if you have questions or need a quotation"

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08-473 3340
  • Paired with the ATR-PRO ONE

    For many routine sample analyses the FT/IR-4000 can be paired with the ATR-PRO ONE single bounce ATR with a choice of prisms including a high throughput monolithic diamond, Germanium (ideal for carbon-black samples) or ZnSe. A choice of clamps with pressure up to 10,000 psi ensures the best sample contact with the crystal.

    The newly developed monolithic diamond provides excellent transmission and without any coating or transfer optics has great performance into the far-IR
  • Add a second detector

    For flexible applications a second detector can be added, such as an MCT with automatic exchange (or specify a different beam splitter/detector) for a dedicated system to work in the near-IR or far-IR.
  • Coupled to microscope

    The FT/IR-4000 can be coupled to any of the IRT Series of FTIR microscopes to create a versatile system for both micro and macro FTIR spectroscopy.
  • Software

    The powerful control and analysis software, Spectra Manager™ Suite, is compatible with Windows 7 Pro (32 and 64 bit) and Windows 10 (32 and 64 bit) providing a customizable user interface for automating routine tasks such as sample identification and quality testing using Quick-Start and QC Compare (with build your own library capability).

  • Free evaluation

    KnowItAll® informatics package is included with 12,000 free spectra for life (HaveItAll 250,000 for free evaluation for three months).

FT/IR-4000 Series


  • Maximum Resolution
    0.7 cm-1
  • S/N Ratio


  • Maximum Resolution
    0.4 cm-1
  • S/N Ratio

Simple Operation

The FT/IR-4000 Series is controlled by Spectra Manager™ Suite cross-platform software. This includes a wide variety of standard functions such as spectra measurement, Quick-Start, QC Compare and quantitative analysis. Additional applications can be added, such as chemometrics (PLS, PCR, CLS etc.). The sample measurement screen can be fully customized according to user requirements and each customized screen and parameters can be saved for different users (User Adaptive Software).

Advanced Measurement Screen of Spectra Manager

Information such as the instrument status, measurement parameters and the sequence of data acquisition are displayed.

Results Display
Data analysis results such as spectral comparison and sample quantification are displayed and readily available.

Real-Time Monitoring
A real-time data processing function can be used to observe and verify the spectrum during measurements. Spectra stored in thumbnails can also be overlaid with the current spectrum during sample measurements. Self-diagnosis and Validation Self-diagnosis functions allow verification of the current instrument status.

Target peak(s) and/or functional groups can be easily checked by a zoom function.

The measured spectra can be stored as thumbnails within the thumbnail window. The thumbnails can be individually selected and viewed in Spectra view

Real-Time Data Processing

The data collection/processing sequence can be defined to include several data manipulation commands, activated as the spectral data is collected. The final results after all processing commands are completed are displayed as the final spectrum.

FTIR Spectrometers System Features


The interferometer is manufactured as a solid cast aluminum block  and is completely sealed. The FT/IR-4000 uses a 45 deg Michelson interferometer and the FT/IR-6000 uses a 28 degree Michelson interferometer. A near frictionless bearing (without the need for a gas supply) supports the moving mirror which is driven by a ‘voice coil’ for accurate vibration free movement.  Laser tracking of the moving mirror is made using Accutrac™ with the latest in digital signal processing. The standard KRS-5 windows prevent hygroscopic damage often seen with KBr windows used on some products.

Corner-Cube Mirrors

Corner cube mirrors automatically correct for any light path deviation, providing excellent optical stability at all times. Eliminating the need for dynamic alignment.

  • Purgeable Optics

    All models include a fully sealed and desiccated interferometer chamber. In addition, an integrated purge for the optical system is included as standard.
  • Excellent S/N Ratio

    The highly stable interferometer with high intensity two-stage light source   offers optimum signal-to-noise performance starting at 28,000:1 and up to 55,000:1 (under standardized conditions).
  • High Sensitivity Electrically Cooled DLaTGS Detector

    A highly sensitive and stable DLATGS detector is standard for all instruments. The DLATGS detector element is temperature-controlled using the Peltier effect.
  • Additional Detectors

    Many optional detectors cover the range from 25,000 to 5 cm-1 and include several LN2 cooled MCT detectors for wide, narrow and mid band, Other include SiPD, InGaAs, Bolometer, etc.
  • Wavenumber Extension

    The working range can be extended from the visible to far-IR by switching various optical components, such as source, windows, beam splitter and detector.
  • Vibration-Free Optical Bench

    A specially designed vibration-proof mounting of the optical bench completely eliminates interference from external vibrations.
  • GxP Support

    For laboratories compliant with GxP regulations, an instrument validation routine is provided as standard to verify instrument performance compliant with ASTM, EP, and JP procedures.
  • Microscope/IR Imaging

    The IRT-1000, 5000 or 7000 infrared microscope models can be easily interfaced to any FT/IR-4000 or FT/IR-6000 instrument.


At Kovalent we strive to establish and develop long-term partnerships with our customers. When we use the word “partnership” we mean that Kovalent becomes an integral part of our customers’ projects, where we are expected to fully understand their application needs. We aim to make Kovalent our customers’ first and natural choice, and this ambition permeates our entire organisation from initial contact to finished and delivered product.


Kovalent AB
Hulda Lindgrens gata 6A
Phone: +46(0)31-709 81 80
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Org.nr: 556417-2194


Genetec is a member of the same family of companies as Kovalent. Both companies share the same set of values and are in many ways integrated with each other. The main difference between the two companies are their products. Kovalent is involved in system solutions including instrumentation and Genetec is mainly working with consumables. The focus of Genetec is chromatography accessories. You are welcome to visit their state of the art web shop: genetec.se