Food, Beverage and Dairy
Food, Beverage and Dairy

ITM-51, ITM-51R Relative turbidity meter

Turbidity Sensors, CIP Controls, IO-Link, Process Analytics

Modular, front-flush turbidity sensor for low to high turbidities, with IO-Link

Hygienic, front flush turbidity sensor for media with a turbidity of 200…300.000 NTU equivalent in pipes from DN25 on.

  • Active phase separation in the production process: Precise differentiation of product / mixed phase / water
  • Minimisation of resource losses
  • Frontflush sensor in compact and modular design
  • Reduction of the water consumption and waste water treatment cost
  • Minimisation of the duration of a CIP-cleaning process
  • Glass-free sapphire optics
  • Flex-Hybrid: Digital IO-Link and analog 4…20 mA in parallel
  • Modular design: configurable from the low-cost basic version to the high-end model
  • Front-flush sensor: Simplified pipe cleaning (pigging possible) ideal for media with adhesive fibres or particles
  • Extended temperature and pressure range
  • Independent to reflexions at small diameters or electro-polished surfaces
  • No color dependency (wave length 860 nm)
  • High reproducibility and fast response time
  • Selectable output value (%TU, NTU, EBC)
  • Extended measurement range: 200…300.000 NTU equivalent

Application examples

  • Phase separation products (whey-cream-milk)
  • Separator control
  • CIP-return line (monitoring of pre-rinse water to product leftovers)
  • Automation of the yeast harvest and the separator monitoring in breweries
  • Quality control
  • Leakage control of filters, gasket, valves

ROI Calculator

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Further Information:

  • The ITM-51 is compatible to the antecessor ITM-3.
Key Benefits:
Product Information:

Technical Specification

Process Connection CLEANadapt | Tri-Clamp | Varivent
Wetted material Stainless steel 1.4404 (316L), Ra≤0.8 μm | Optics sapphire
Measuring range 0…300.000 NTU | 0…200 %TU | 0…75.000 EBC
Accuracy ±3% of the measurement value
Available versions Compact | Remote
Temperature range process -10…130 °C
Temperature range CIP/SIP 140 °C / max. 120 min.
Operating pressure -1…20 bar
Communication 4…20 mA (4-wire loop), IO-Link
Product Technology Range

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Technical Support: How to videos

Click here to view the playlist of our How to videos

The values shown are the performance limits within the product line. The product-specific data for each individual configuration can be obtained from the product information



Efficient phase transition

Turbidimeter with LED

Turbidimeter demonstration

Slope adjustment

Change offset

Change range

Change units

Change damping

Change language


Key Benefits:
Product Information:
User Manuals:

Process Connection

Configuration and 3D Data