Yokogawa releases largest ever Coriolis mass flowmeter

Yokogawa Electric Corporation has announced the release of the ROTAMASS XR Coriolis mass flowmeter, which is the largest ever product of its type and is capable of handling a maximum flow rate of 600 t/h.

Designed specifically to address the requirements of the oil & gas and petrochemical industries, the new ROTAMASS XR offers state-of-the-art accuracy – 0.1% of measured value for liquids and 0.5% of measured value for gases – as well as excellent zero and long-term stability.

Product Features

Featuring the unique ‘box in box' design with dual balanced metering tubes, the ROTAMASS XR is based on a self-draining design and can carry out bi-directional measurements on mass flow, density, and temperature as well as derive the values of concentration, volume flow ,and net flow. In common with the rest of the ROTAMASS 3 series, the new ROTAMASS XR offers a temperature measurement accuracy of 0.5°C, which is unique in the market.

The ROTAMASS XR will operate over a temperature range of -200°C to +230°C, and is  suitable for use in high solid content slurry applications when used with the new high-power option. Built-in self-diagnostic capabilities including slug flow detection and compensation as well as corrosion detection are standard features.

The new ROTAMASS XR exhibits a high degree of immunity to 2-phase flow effects, and with the new high-power option can handle a higher level of entrained gas than other units currently on the market.

In addition to digital communication via HART or FOUNDATION fieldbus™, ATEX, IECEx, and FM approval options are available for use in hazardous environments.


With the multi-flange concept offering process connections up to 8-inch ASME class 300 and DN200 PN40 as standard, the ROTAMASS XR is suitable for the most demanding applications. 

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