EXspect 271

NIR backscattering sensor in compact design

EXspect 271 is a high precisely compact NIR turbidity sensor monitoring production processes in the food industry, e.g. in dairies, as well as in many ranges of process and chemical applications and waste water. The robust and compact structure in the stainless steel housing and the wear-free sapphire lens makes the EXspect 271 a reliable back scattering sensor with integrated transmitter. The turbidity value can be displayed in % or in a freely definable customer-specific unit directly in the display and output via the standard interface 4...20 mA. Two alarm limits can be programmed.

EXspect 271

Your advantages

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


  • Specifications

    Measuring range max. 0-100 %
    Resolution 0,1 %
    Accuracy ± 1,5 % from measurement value
    Reproducibility ≤ 1 % from final value
    Wavelength 850 nm
    Light source LED
    Material Stainless steel 1.4435 (316L)
    Surface e-polished Ra <0,37 μm
    Lens Sapphire
    Supply voltage 24 V DC
    Contact NO or NC configurable 150 mA
    Input contact zeroing
    Process connection Thread G1/2"
    Process temperature -10... 90 °C, 141 °C max. 2 hours (SIP cycle)
    Process pressure 0... 20 bar
    Electrical connection M12 connector 5-pin or 8-pin (digital parameterizable)
    Cable length 2 m / 5 m
    Interfaces 4 ... 20 mA with add. switching contact
    Parameterization Software EXpert
    Protection class IP69
  • Dimensions

  • Applications

    • Phase separation
    • Filter observation
    • Concentration measurement independent from color
    • Monitoring product changes
    • Yeast management
  • 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