Coriolis flowmeter

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with Modbus interface

Measurement & Instrumentation

Coriolis flowmeter
Coriolis flowmeter

The ROTAMASS 3 Coriolis flowmeter series by Yokogawa has been extended by adding a Modbus interface. Communications via an RS-485 connection will be available in both Modbus RTU and ASCII transmission modes. The Modbus communication at up to 57kbit/s enables access to all relevant process measurements including - but not limited to - mass/flow, density and temperature. All measurement variables are included as readable address registers. In addition to the Modbus communication, the standard I/O interfaces such as 4-20 mA, pulse/frequency and status in/out are still available for control and/or monitoring purposes.

For easy configuration of meter measurements and settings, a free ROTAMASS Modbus communication tool will be delivered with each device. This software tool is equipped with different functions, clearly shown in an explorer view.  Despite Modbus communication, all settings can be done by means of the indicator. Even simultaneous HART communication via HHT or FDT is possible.

The flowmeter is respected in the market for its superior “box in box” design, which guarantees decoupling of the device from external vibrations and stresses. With its two U-shaped and thick wall tubes, this device achieves an optimum measurement accuracy of ±0.1% of reading for liquids and ±0.5% for gases, and has excellent zero-point stability, even under tough conditions in the field.

The mass-flow measurement range spans from 45kg/h to 600t/h. A unique density accuracy of ±0.0005g/cm3 (±0.5g/l) results from the real density being calibrated using different liquids and temperatures. The device can handle applications involving temperatures from -200 up to 350°C.

All models are available with a variety of process connections offering pressure rates up to 285 bar. The result is a range of instruments to suit every customer in terms of pressure loss, measurement accuracy and price.

Posted on March 12, 2012 - (755 views)
by
Yokogawa Europe BV (old Address)
Euroweg 2 (3825 HD Amersfoort) P.O. Box 163
3800 AD Amersfoort - Netherlands
+31-88-4641191
+31-88-4641107
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Description

Yokogawa's global network of 90 companies spans 55 countries. Founded in 1915, the US$4 billion company conducts cutting-edge research and innovation. Yokogawa is engaged in the industrial automation and control (IA), test and measurement, and other businesses segments. The European & Africa headquarters were founded in Amersfoort in the Netherlands in 1982.  Throughout Europe and Africa Yokogawa has its own sales, service and engineering operations.  Yokogawa develops and produces flowmeters at Rota Yokogawa in Germany and liquid analysers and industrial safety systems in the Netherlands.

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