EXspect 231 NIR absorption sensor in compact design

EXspect 231 NIR absorption sensor in compact design

  • Compact design with integrated amplifier and touch display
  • %-turbidity / 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

Brand : Exner


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.


Measuring range max.0-100 % / 0…6 AU / 0…6600 EBC
Resolution0,1 % or 0,01 AU
Accuracy± 1 % from measurement value
Reproducibility≤ 1 % from final value
Wavelength850 nm
Light sourceLED
Optical path length5, 10 or 20 mm
MaterialStainless steel 1.4435 (316L)
Surfacee-polished Ra <0,37 μm
Supply voltage24 V DC
ContactNO or NC configurable 150 mA
Input contactzeroing
Process connectionThread G1/2 “
Process temperature0 … 90 °C
Process pressuremax. 10 bar (150 psi)
Electrical connectionM12 connector 5-pin or 8-pin (digital parameterizable)
Cable length2 m / 5 m
Interfaces4 … 20 mA with switching contact
ParameterizationSoftware EXpert
Protection classIP69


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

EXspect 231 NIR absorption sensor in compact design

Parshvi Technology