KROHNE AG
About us
KROHNE – Your Global Partner
KROHNE is your reliable partner for process instrumentation and automation. As our customer, you benefit from our ability to find the right measurement solutions for your applications. We offer a complete product portfolio, industry-specific system solutions, and complementary services for instrumentation projects of any size.
By specializing in industrial process measurement technology since 1921, we have acquired extensive application expertise across a wide range of industries and integrated this knowledge into our products, solutions, and services. We have a deep understanding of the physical principles on which our measuring instruments are based: our ability to harness physical effects and always find the right measurement solution is the reason why customers worldwide trust us. Our goal is to capture the primary measured value as accurately as possible to avoid subsequent errors that could compromise your process control. At the same time, our measuring instruments are capable of reliable measurement even under changing or difficult process conditions. Our claim "Measure the Facts" reflects both of these aspects.
The innovative technologies we make available to you are based on our extensive research and development activities: 10% of KROHNE's more than 4,000 employees work in this field. In addition to sensor physics, their focus is on device communication and technologies for the Internet of Things (Industry 4.0) in the process industry, such as Ethernet communication for the transmission of process and device diagnostic data for evaluation and process optimization.
Our "Technology Icons" perfectly summarize the above-mentioned advantages. You will find them as highlights among our complete portfolio. If you can't find a suitable solution for your measurement application, contact us; we look forward to solving it!
Products & services
AF-E 400
The AF-E 400 is an electromagnetic flowmeter for utility applications and industrial automation. This ultra-compact mag meter is the ideal choice for applications with conductive liquids in tight spaces, e.g. in cooling lines of welding equipment, bending machines and robots or on chemical dosing skids. It features best-in-class accuracy in every flow range, allowing optimal processing in automation. The round bore reduction of the sensor makes the flowmeter more resilient in terms of increased pressure, ensuring high accuracy over a wide pressure and temperature range. Its integrated temperature measurement eliminates the need for an additional sensor. The AF-E 400 guarantees maximum flexibility when it comes to installation. Due to the special design of its magnetic circuit, field strength and electronics, this mag meter can be positioned in extreme proximity to one another (as close as 2 mm / 0.08"). It can thus be mounted in parallel without interference. The electromagnetic flowmeter offers various output and communication options. Among others, the device features an IO-Link and a Modbus option to provide operators with multiple sensor and application data for smarter factory automation. IO-Link also enables faster sensor installation or replacement.
OPTISONIC 7300 Biogas
The OPTISONIC 7300 Biogas is an ultrasonic flowmeter for low pressure biogas, landfill and sewage gas applications. The flowmeter is ideally suited to measure biogas with a high CO2 content as well as small amounts of other media like H2S, nitrogen, hydrocarbons or condensation water. Its corrosion resistant titanium transducers provide a strong ultrasonic signal into the gas. The signal processing of the meter allows a better detection of small, strongly dampened acoustic signals. The OPTISONIC 7300 Biogas features an integrated temperature sensor and optional pressure sensor that enables a temperature and pressure compensated standard volume calculation. The biogas meter also allows accurate online measurement of methane content in biogas and sewage gas (just ±2% error of measured value). This saves on costs as additional analytical systems for methane measurement are not needed. The biogas meter provides a wide measuring range (turndown ratio: 100:1). The OPTISONIC 7300 Biogas comes with ATEX approval (zone 1) and digital communication options.
WATERFLUX 3070
The WATERFLUX 3070 is a battery powered electromagnetic water meter for use in water abstraction wells, district metering areas (DMA) and custody transfer measurement of potable water (MI-001, OIML R49). With optional pressure and temperature sensors, the meter can also be used for leak detection, quality control and pressure management systems. Unlike mechanical water meters, the WATERFLUX 3070 is maintenance-free and offers a much larger turn down ratio (1000:1). Its measuring tube with a rectangular and reduced cross-section enables a stable measurement even at low flow rates. Due to the optimized flow profile, the WATERFLUX 3070 can be installed virtually anywhere without straight inlet or outlet runs – behind pipe bends, slide valves or a reduction in the pipe. Even burial installation or use in flooded areas is possible. Next to battery-powered operation with integrated batteries or optional external battery pack (“PowerBlock”), the WATERFLUX 3070 offers multiple power supply options. For locations with mains power supply, an optional FlexPower unit is available to connect the battery-powered meter to a 110…230V AC or 10…30V DC power source on site, e.g. an electrical grid, a solar panel or a small windmill. For permanent transmission of multiparameter measurement readings (e.g. flow, pressure, temperature), Modbus RTU communication is available as a simple interface. For remote or difficult to access measurement points (e.g. abstraction wells), the water meter can also be equipped with a GPRS or 3G module for remote transmission of readings. A full on-site verification of the WATERFLUX 3070 without process interruption can be carried out using the OPTICHECK service tool.
OPTISONIC 6300 P
The OPTISONIC 6300 P is a portable, battery-powered ultrasonic clamp-on flowmeter for temporary flow measurement of (non-)conductive liquids in virtually all industries. It can be used at virtually any location without interrupting the process or cutting pipes. Due to its flexibility, the flowmeter is equally suited for comparative measurements on stationary measuring equipment (e.g. pumps, flowmeters etc.) or for use as a short-term replacement of faulty devices. The clamp-on flowmeter comes with a measurement option for thermal energy applications as standard. The OPTISONIC 6300 P combines robust, easy-to-mount clamp-on sensor rails with a battery-powered signal converter for 1 or 2 path measurement. The portable converter comes with full measurement functionality and an integrated data logger. All measurement data can be monitored and analysed via a smart handheld or mobile device using the OPTISONIC 6300 P mobile app. The Android app is free and makes it easy to set up and commission the clamp-on flowmeter. A user-friendly installation wizard guides the user through the configuration process. A USB cable or secure wireless Bluetooth® connection transfers data between the smart device and signal converter. All data is saved on the mobile device and can be evaluated.
OPTIBAR LC 1010
The OPTIBAR LC 1010 is a submersible level probe for water and wastewater, environmental engineering and OEM applications. It is particularly suitable for continuous hydrostatic level measurement in water wells, rainwater retention and overflow basins or tanks. The level transmitter features a robust stainless steel housing and a high overload-resistant ceramic diaphragm for long-term operation. The diaphragm is flush mounted for safe and easy cleaning on site. The level probe comes with pre-configured measuring ranges from 100 mbar / 1.5 psi to up to 10 bar / 150 psi. Customer-specific ranges are available on request. Its corrosion-resistant TPE cable is approved for use in potable water applications. The OPTIBAR LC 1010 features a 4…20 mA output and optional HART®7 for convenient configuration. The level probe can also be provided with an integrated Pt100 temperature sensor.
TIDALFLUX 2300 F
The TIDALFLUX 2300 is an electromagnetic flowmeter (EMF) with a patented, capacitive level measurement for use in partially filled pipes (up to DN1600 / 64”). The meter is the ideal solution for flow measurement of municipal or industrial wastewater in pressureless transport lines. However, the EMF is also suitable for measurement of effluent brine from dredging, mining or sea/well water injection applications. Unlike open channel systems (Venturi, V-notches etc.) the inline flowmeter is a closed measuring solution without obstructions and with a much better accuracy at lower total costs of ownership. The measuring tube of the TIDALFLUX 2300 comes with a polyurethane (PUR) liner for abrasion and chemical resistance. Its smooth surface prevents build-up of fat and other deposits which minimises the need for regular cleaning. For direct burial installation or applications in areas that can be partially flooded, the meter can be ordered as IP68 /NEMA 6P rated version. Due to the presence of flammable hydrogen sulphide (H2S) in many wastewater applications, the EMF also has ATEX / IECEx zone 1 approval. The TIDALFLUX 2300 comes with extensive diagnostics. A full on-site verification of the flowmeter without process interruption can be carried out using the OPTICHECK service tool.
OPTIWAVE 15xx Serie - NEW
The OPTIWAVE 1520 is a 2-wire 80 GHz radar level transmitter for basic applications with liquids and solids. Its PVDF Lens antenna and compact housing make it particularly suitable for use in confined spaces as well as harsh process and environmental conditions such as outdoor applications, where a high degree of robustness is required. The level radar is therefore the ideal choice for cost-effective level measurement of sewage sludge and wastewater as well as treated water, e.g. in pumping stations, screw lifting stations or water basins. It is equally designed for use in small silos with granulates such as sand or other products. The level transmitter is also available as an IP68-rated waterproof version, designed to withstand heavy rainfall and flooding. With its front-flush antenna design and its narrow beam angle, the cost-effective 80 GHz radar can also be used in small open tanks or pressurised vessels with internal obstructions where level measurement with dead zones is not an option. Due to its extremely high dynamic range, the OPTIWAVE 1520 is also able to provide reliable readings in the event of condensation or moving surfaces. Commissioning is easily carried out via Bluetooth® using the KROHNE OPTICHECK Level Mobile app or via HART® with the OPTICHECK DTM. The OPTIWAVE 1520 also utilises self-diagnostics of the OPTICHECK technology built-in. This enables continuous device testing and verification including reporting on site without process interruption and removal of the radar.
OPTISYS TUR 1060
The OPTISYS TUR 1060 is a turbidity measuring system with cost-efficient cuvette calibration and automated ultrasonic cleaning system. Due to its optimised cuvette measuring system, it has a very fast measuring response time. The sensor uses the 90° scattered light method, thus the measurement optics are not directly exposed to the sample and require less maintenance. The low-range system is the most suitable system when it comes to fulfilling all the necessary regulations and requirements in water and wastewater treatment. The built-in data logger allows storage of readings and calibration data. The measuring data can be downloaded via the USB interface. In addition, calibration data can be uploaded via USB to change the measuring range.