RangeIR™ Liquid Analyzer

The RangeIR™ is a powerful tool for the analysis of liquids, pastes, and gels under controlled temperatures up to 175°C. The unique design allows the safe use of the sample temperature itself in this control, an invaluable feature for rigorous studies. Reactants and reaction products can be monitored as a function of temperature. In addition, the RangeIR™ can be used for sensitive measurements on dissolved or suspended species, by using the elevated temperature to volatilize an interfering liquid. The RangeIR™ allows routine quantitative and qualitative measurements on temperature-controlled liquids, pastes, and gels. Applications include real-time in-situ monitoring of reactants and reaction products in liquids as a function of temperature and analysis of dissolved or suspended species in interfering liquids.

Features & Includes


  • Reproducible measurements.
  • Convenient trough for containing liquid samples.
  • Fixed 45° single reflection horizontal ATR configuration.
  • SuperCharged™ ZnSe ATR Crystal or Gemanium ATR Crystal.
  • Exchangeable ATR crystal.
  • Simple to align and use.
  • Safe, low-voltage heaters permit operation up to 175°C (Note: Germanium becomes optically opaque at temperatures exceeding 100°C.)
  • K-type thermocouple directly measures the sample temperature and flips out of the way for easy cleaning of the ATR crystal.
  • Secondary K-type thermocouple monitors the crystal temperature, permitting the cascade temperature regulation required as a fail-safe for high temperature operation.
  • PermaPurge™ for rapid purging of the FTIR system.
  • Requires the Low Voltage Temperature Controller for precise and safe regulation of the sample temperature, with options for direct, cascade, and computer control.
  • Available in a specialized configuration, the FatIR, for trans fat analysis.


  • RangeIR
    • SuperCharged™ ZnSe mounted ATR crystal.
    • Two imbedded cartridge heaters.
    • Two K-type thermocouples.
    • Mating and PermaPurge™ hardware for the specified FT-IR spectrometer.
  • FatIR
    • RangeIR
    • Temperature Controller with USB to RS-485 adapter for computer control.

Related Accessories


Model No. Name Price
008-144 Thermocouple, K-Type $103.00
Model No. Name Price
FAS-ATR-M ZnSe Prism for the FastIR and RangeIR $1,105.00
Model No. Name Price
FAS-GSK VIton Gasket for FastIR, RangeIR and FatIR $65.00
RAN-GSK Kalrez gasket for RangeIR, FatIR and FastIR $115.00
Model No. Name Price
HTRS-18 Cartridge Heater, 0.125" x 1.25", 24V/50W $122.00
RAN-HTR Heater Assembly for RangeIR $396.00

Technical Info

For assistance with your order, please contact customer service at 1-800-248-3847


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