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Brand: KROHNE
KROHNE OPTIMASS 2400 High-Capacity Coriolis Mass Flowmeter
Description
Highest-capacity Coriolis meter for bulk and custody transfer
The KROHNE OPTIMASS 2400 is described by the manufacturer as the world highest capacity Coriolis mass flowmeter for liquids and gases. Its twin or four straight tube design handles flow rates up to 2,300,000 kg/h, and it is aimed at bunkering, custody transfer and fiscal metering in the oil and gas industry, as well as bulk handling of chemicals, syrups and milk. The Entrained Gas Management function keeps the meter running when air or gas bubbles pass through a liquid, and Bluetooth gives a secure wireless link for commissioning, verification and diagnostics within about 20 m.
Accuracy is +/-0.1 percent of measured value, with an optional +/-0.05 percent, and the highest OIML class of 0.3 is listed for custody transfer. Integral pressure compensation supports flow and density measurement. The sensor is made of duplex or super duplex stainless steel, flanges run from DN100 to DN400, and a marine version exists for ship bunkering.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | OPTIMASS 2400 (MFC 400 converter) |
| Principle | Coriolis, twin or four straight tubes |
| Measured values | Mass, density, temperature; calculated volume and concentration |
| Accuracy | +/-0.1 % of MV; optional +/-0.05 % of MV; OIML class 0.3 |
| Maximum flow | Up to 2,300,000 kg/h as stated in the data sheet |
| Flange sizes | EN 1092-1 DN100 to DN400; ASME 4 to 16 in; JIS 100A |
| Pressure | Max. 180 barg / 2600 psig |
| Process temperature | -45 to +130 C / -49 to +266 F |
| Measuring tube | Duplex 1.4462 or super duplex 1.4501 |
| Outputs | 4 to 20 mA, pulse, frequency, status, limit switches; HART, FOUNDATION Fieldbus, PROFIBUS PA/DP, EtherNet/IP, PROFINET, Ethernet-APL |
| Approvals as printed | ATEX, IECEx, NEPSI, FM, CSA, UKEX; FDA, EC 1935/2004; NACE; marine approvals |
Applications named
Oil and gas uses include crude oil and hydrocarbon fiscal metering, pipeline measurement, metering skids, bulk loading, in-line density and net oil and water cut. Marine bunkering of ship fuels has its own version, and mining and food plants use it for high volume slurries and syrups.
A single large meter can replace a bank of smaller ones, which cuts pipework, pressure drop and the number of verification points on a loading skid.
Before you request a quote
State the line size, flow range, fluid, viscosity, pressure, temperature and custody-transfer authority. The data sheet gives zero-stability figures per size, for example below 7 kg/h for the S100 size, which set the lowest usable flow at a given accuracy.
The hosted TD is dated 2014 (R01), so request the latest revision, the converter options and the approval list for the exact order code. A derived note: heavy sensors need proper pipe supports and straight lengths are not required for the meter itself.
Documents and quotation
Open the attached KROHNE OPTIMASS 2400 technical datasheet (EN) for the complete data and dimension drawings. Before you place an order, confirm the size, tube material and custody-transfer approval with the system designer, then submit your request with the exact code; our team prepares the quotation. Related items are listed under Flowmeters.
Datasheets & Documents
- Datasheet KROHNE OPTIMASS 2400 technical datasheet (EN) Download
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About brand
KROHNE is the German flow and level measurement company founded in Duisburg in 1921 as Ludwig Krohne & Sohn. Its first customers were Ruhr steel producers, for whom it built variable area flowmeters. KROHNE dates the first electromagnetic flowmeter for industrial process measurement to 1952. It is still family-owned and headquartered in Duisburg.
Seven Star LLC is an independent supplier in Muscat. We list KROHNE electromagnetic, Coriolis, ultrasonic and variable area flowmeters, radar level transmitters and flow computers, and supply them to water utilities, oil and gas and process plants in Oman and the GCC by order code.
KROHNE company profile
| Established | 1921, Duisburg, Germany, as Ludwig Krohne & Sohn |
|---|---|
| Early products | Variable area flowmeters for hardening furnaces in the Ruhr steel industry |
| Milestone | 1952: first electromagnetic flowmeter for industrial process measurement, according to KROHNE |
| Product families | Electromagnetic, Coriolis, ultrasonic, vortex and variable area flowmeters, radar and guided radar level, flow computers and metering systems, analysers |
Milestones
- 1921: Ludwig Krohne starts making variable area flowmeters in Duisburg for hardening furnaces in the Ruhr steel industry.
- 1952: First electromagnetic flowmeter for industrial process measurement, according to KROHNE.
- 1980: First ultrasonic flowmeter delivered to Shell for crude oil measurement.
- 1985: Development and production of Coriolis mass flowmeters begins.
- 1994: First Coriolis mass flowmeter with a single straight measuring tube.
- 1996: ALTOSONIC V, the first ultrasonic meter for custody transfer of liquids.
KROHNE products we list
| Family | Models | Typical use |
|---|---|---|
| Electromagnetic flowmeters | OPTIFLUX 2000, 2100, 2300, 4100, 4300, WATERFLUX 3070, 3100, 3300 | Water networks, wastewater, seawater intake and conductive process liquids |
| Coriolis mass flowmeters | OPTIMASS 1400, 6400 | Direct mass flow and density of hydrocarbons, chemicals and LPG |
| Ultrasonic flowmeters | ALTOSONIC V12, OPTISONIC 3400, 6300 clamp-on, 7300 gas | Gas custody transfer, liquid process flow and non-intrusive clamp-on checks |
| Variable area flowmeters | H250 M40, DK800/R | Simple, power-free flow indication for purge, sample and utility lines |
| Level | OPTIFLEX 7200 guided radar, OPTIWAVE 5400, 7500, 1540, OPTISWITCH 5300 | Level in tanks, separators and chemical storage, and point level switching |
| Flow computer | SUMMIT 8800 | Fiscal and custody transfer calculations for gas and liquid metering |
The flowmeter principle follows the medium. Electromagnetic meters need a conductive liquid, have no moving parts and no pressure loss, and suit water and slurries. Coriolis meters measure mass flow and density directly, so they work for hydrocarbons and non-conductive liquids. Ultrasonic meters handle gas and large pipes, and multi-path designs such as the ALTOSONIC V12 are used for custody transfer. Variable area meters need no power at all and give a simple local reading.
Where KROHNE instruments are used
In Oman and the GCC, KROHNE flowmeters and level transmitters are used in water transmission and distribution, desalination, wastewater, oil and gas production and fiscal metering, refineries, petrochemical and chemical plants, and power stations.
Ordering KROHNE instruments: what we need
Send the complete KROHNE order code or the nameplate data. For a new meter, send the medium, the flow range, pressure and temperature, the pipe size and flange rating, the liner and electrode materials (for electromagnetic meters), the output and communication, and the hazardous area classification.
Facts checked against KROHNE company history (100th anniversary), October 2026.
Browse KROHNE products by category: Flowmeters, Level Transmitter, Flow Computers.
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Frequently Asked Questions
What is the maximum flow rate?
Flow rates up to 2,300,000 kg/h are stated in the data sheet.
Is it approved for custody transfer?
The page lists OIML accuracy class 0.3 for custody transfer.
What accuracy does it have?
+/-0.1 percent of measured value, optionally +/-0.05 percent.
Which line sizes are offered?
DN100 to DN400 (4 to 16 in).
Is a marine version available?
Yes, an OPTIMASS 2400 marine version for bunkering is listed.
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