KROHNE MESSTECHNIK GMBH

Solution for partially filled pipes The TIDALFLUX 2000 flow sensor with integrated and non-contact capacitive level measuring system provides accurate flow measurement in partially filled pipes. TIDALFLUX is designed to measure reliably between 10% and 100% of the pipe cross section. The integrated level sensors in the liner are in no contact with the liquid and are therefore insensitive against fat and oil floating on the surface.

The OPTISONIC 3400 is a 3-path ultrasonic inline flowmeter designed for a wide range of standard or more demanding process applications with homogeneous, non-viscous aqueous liquids as well as viscous fluids of up to over 1000 cSt. It is also the perfect choice for applications with cryogenic products (as low as -200°C / -328°F), media with extended temperature ranges (up to +250°C / +482°F) as well as low or extreme pressure ratings. Based on the transit time method, the 3 parallel acoustic paths of the flowmeter allow bi-directional measurement independent of flow profile for high accuracy even under less favourable flow profile conditions (e.g. short inlet and outlet runs). By means of the velocity of sound, the device is also able to identify process changes or liquid pollution. Its fully welded construction does not cause any pressure loss and is maintenance-free. The OPTISONIC 3400 is available with flange as well as welded connections.

The ALTOSONIC V12 is a 12-chord ultrasonic custody transfer (CT) flowmeter for natural gas. It has been designed to offer the best possible measurement accuracy, not only during calibration under ideal conditions but also during less ideal conditions in the field. As a result, ALTOSONIC V12 is the first ultrasonic flowmeter that was certified to OIML R137 class 0.5 by NMi. Due to its design with 12 acoustic chords a flow conditioner is no longer required; standards such as AGA9, ISO 17089 and MID are met with just 5D straight inlet piping. CBM flowmeter diagnostics are standard and give an exact picture of what is happening inside the flowmeter. With the optional KROHNE Care diagnostic expert system an integrated web server becomes available that presents the results as an easy to access webpage – in plain language.

The OPTISONIC 7300 is a universal 2-path ultrasonic gas flowmeter for process and utility gas measurements in oil and gas refineries or the chemical or petrochemical industries. It is also suitable for non-custody transfer natural gas applications or applications with (compressed) air, mixed or flue gases (up to +180°C / +356°F). Using the transit time differential measuring principle, the OPTISONIC 7300 delivers high performance over a wide flow range (up to DN600 / 24", turndown ratio: 100:1). The measured volume flow can always be calculated to standard conditions using the input of temperature and pressure sensors, which can be directly connected to the device. Following the initial calibration, the device provides accurate measuring results (±1% error of measured value). The OPTISONIC 7300 does not have the limitations associated with turbine or other traditional gas flowmeters like periodical recalibrations, maintenance, pressure loss and a limited flow range.

The OPTISONIC 6300 P is a portable, battery-powered ultrasonic clamp-on flowmeter for temporary flow measurement of (non-)conductive liquids. It can be used at virtually any location and without process interruption or need to cut pipes. Due to its flexibility, the meter 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 OPTISONIC 6300 P consists of a combination of one or two clamp-on sensors and one handheld electronic signal converter. The robust clamp-on rail can be easily attached to almost any pipe up to DN1500/160". The readings of the meter are shown on the handheld LCD and are stored in the integrated memory for data logging. In addition, all readings can be transferred to a PC via the included USB stick in order to further analyse or store the data.

The DK37 M8 is a variable area (VA) flowmeter with electrical signal output and bargraph indication or mechanical indicator with two optional limit switches. The versatile all-metal measuring device is suitable for flow measurement of gases and liquids. Due to its sturdy design, the VA meter can be used at temperatures up to +200°C / +392°F or pressures up to 220 barg / 3190 psig. It is fitted with a needle valve as standard to accurately set the flow value. The DK37 M8 comes with vertical or horizontal process connections for NPT or G thread, flange adapters and many other connection options. To provide constant flow rates in case of variable inlet or outlet pressures, the VA meter is also available with flow regulators. It has approvals for hazardous areas and is suitable for use in Safety Instrumented Systems (SIS).

The OPTIFLUX 6000 is an electromagnetic flow sensor for hygienic applications. Combined with the IFC 050, IFC 100 or IFC 300 signal converters it forms the OPTIFLUX 6050, OPTIFLUX 6100 and OPTIFLUX 6300 electromagnetic flowmeters.

Ultrasonic flowmeter for high temperature gas and steam As the OPTISONIC 8300 provides a large measurement range and does not require recalibration, the installation can be simplified and costs reduced. For example since the flow sensor does not need to be removed, shut off valves and a bypass are not required. Also thanks to the large measurement range, a dual range measurement setup is not required. Traditional steam measurement solutions need continuous attention and recalibration to guarantee proper operation. As the diagnostics of the OPTISONIC 8300 enables it to look after itself, it does not require any attention. Even periodically recalibration is not required since the OPTISONIC 8300 provides excellent long term stability. Periodical verification of the proper functioning of the device can easily be done using the diagnostics as required.

The OPTIFLEX 1100 is a guided radar level transmitter based on the Time Domain Reflectometry (TDR) technology. It is designed for basic storage applications in non-hazardous areas. The level transmitter is a higher performing replacement for traditional level transmitters such as RF capacitance or conductive level transmitters. It offers 3 types of probes which can all be shorted on site.

The all-in-one solution Already the basic version of the OPTISWIRL 4200 is equipped with a temperature compensation for saturated steam applications. With the optional pressure sensor the OPTISWIRL 4200 has an integrated density compensation available, which even allows an exact measurement of gases and superheated steam with varying process conditions. The additional integrated gross and net heat measurement makes the OPTISWIRL 4200 to be a reliable partner for advanced energy management systems. The OPTISWIRL 4200 was designed for the safety-related applications from the very beginning. It was developed according to the standard IEC 61508 edition 2. The certification is effected within the scope of a Full Assessment by TÜV Süd. Thereby the OPTISWIRL 4200 can be used for continuous volume flow measurement in safety-related applications with classification SIL2.