EXspect 231

NIR absorption sensor in compact design

EXspect 231 is a high-precision NIR compact sensor for monitoring production processes in the food and pharmaceutical industries as well as in many areas of further process applications. The robust and compact design in stainless steel housing and the wear-free sapphire windows make the EXspect 231 a reliable absorption sensor with integrated digital measuring amplifier and touch display. Depending on the sensor type, the measuring units can be output in % turbidity, absorption or common turbidity units and a maximum measuring range of 0...6 AU is available, which can be output via the standard interface of 4...20 mA. Two alarm limits can be programmed and different switching outputs are available. With the EXpert parameterization software, the sensor can be easily adapted to the respective measuring task. Optical filters of the EXcap110 filter series are available for all measuring ranges to check and calibrate the sensor.


Your advantages

  • Compact design with integrated amplifier and touch display
  • %-absorption / EBC / FAU / mg/l / AU / OD or cusomer defined unit
  • Durable sapphire lens
  • Hygienic Design, CIP-capable
  • LED light source guarantees a durable and stable signal
  • Easy parameterization via display or software EXpert


  • Specifications

    Measuring range max. 0-100 % / 0...6 AU / 0...6600 EBC
    Resolution 0,1 % or 0,01 AU
    Accuracy ± 1 % from measurement value
    Reproducibility ≤ 1 % from final value
    Wavelength 850 nm
    Light source LED
    Optical path length 5, 10 or 20 mm
    Material Stainless steel 1.4435 (316L)
    Surface e-polished Ra <0,37 μm
    Window Sapphire
    Supply voltage 24 V DC
    Contact NO or NC configurable 150 mA
    Input contact zeroing
    Process connection Thread G1/2 "
    Process temperature 0 ... 90 °C
    Process pressure max. 10 bar (150 psi)
    Electrical connection M12 connector 5-pin or 8-pin (digital parameterizable)
    Cable length 2 m / 5 m
    Interfaces 4 ... 20 mA with switching contact
    Parameterization Software EXpert
    Protection class IP69
  • Dimensions

  • Applications

    • Reliable phase separation
    • Filter monitoring
    • Separator control
    • Color-independent concentration measurement
  • Downloads

Your direct inquiry

We are looking forward to hearing from you:

Exner Process Equipment GmbH
Carl-Metz-Straße 26

76275 Ettlingen

Telefon: +49 (0)7243-94 54 29-0
Fax: +49 (0)7243-94 54 29-99

E-Mail: sales@e-p-e.de