Equipping a soft drink factory with measuring instrumentation

Application Note | Food & Beverage

  • Flow and level measurement
  • Safety control for dry-run prevention of pumps
  • One single contact person from the project planning phase until start-up


A French mineral well operator has opened a new production plant for lemonades and soft drinks. Inaddition to its own spring water, the company uses mainly syrup and CO2 in production.

Measurement requirements

Measuring technology continuously monitors all parameters including flow and level, pressure and conductivity to ensure a smooth process flow and a high-quality end product.

It is mandatory for the devices used to meet the high requirements of the food and beverage industry. The measuring devices must feature suitable hygienic connections, be manufactured using foodgrade materials and be suitable for use in CIP cleaning.

KROHNE Solution

KROHNE supplied all of the measuring instrumentation for thisproject. This includes, among other things:

KROHNE also supplied other devices such as conductivity sensors (for the CIP cleaning systems) and pressure transmitters (to measure the level in the processing tanks), all from the one source.

Customer benefits

As a result of all the devices coming from the one source, the customer benefits from maximum transparency in terms of both production and product quality. During the course of the project, KROHNE consulted extensively with the customer regarding the selection and design of the measuring technology. This included in particular: the technology used, the right sizing of the measuring devices, recommendations for installation, start-up and staff training. This way, the customer had the benefit of just onecontact person from the project planning phase all the way through to start-up.

Products used


Electromagnetic flowmeter for advanced hygienic applications

  • High accuracy (±0.2%), for exact dosing or filling in the food sector
  • Meter size: DN2.5…150 / ⅒…6" (3A, EHEDG certified)
  • Many hygienic fittings
  • 3 x 4…20 mA, HART®, Modbus, FF, Profibus-PA/DP, PROFINET


Capacitance level switch for advanced hygienic applications

  • Point level detection of liquids, liquid-liquid interface and solids
  • Minimal insertion length: 12 mm / 0.47"
  • -20…+200°C / -4…+392°F; -1…16 barg / -14.5…580 psig


Coriolis mass flowmeter for advanced process and custody transfer (CT) applications

  • High accuracy flow measurement of gases and viscous, aggressive or shear-sensitive liquids
  • OIML R117, MI-005; also certified for hygienic use
  • Flange: DN10…100 / ½…4", max. PN100 / ASME Cl 600; various other connections
  • 3 x 4…20 mA, HART®, Modbus, FF, Profibus-PA/DP


Vortex flowmeter for internal energy balancing

  • For liquids, (wet) gases and steam (up to +240°C / +464°F)
  • Integrated pressure and temperature compensation
  • Flange: DN15…300 / ½…12"; wafer version: max. DN100 / 4"
  • 2-wire, 4…20 mA, HART®