Flowmeter gets Fieldbus communications

Yokogawa introduces a version of its Rotamass Series 3 Coriolis mass flowmeter with Foundation Fieldbus communications.

Yokogawa has introduced a version of its Rotamass Series 3 Coriolis mass flowmeter with Foundation Fieldbus communications.

The RCCT3 model supports bidirectional Fieldbus communications, ensuring interoperability with other field instruments and offering cost reductions by the use of multi-drop wiring with fewer cables.

The instrument has four independent analogue input function blocks for mass flow, volume flow, density and temperature calculation.

Also included are two independent integrator function blocks for mass, volume or net totalisation, while two additional analogue input function blocks for concentration measurement and net flow calculation are available as options.

The unit securely supports various alarm functions based on the Foundation Fieldbus specification, including high and low alarms and notification of block errors.

A self-diagnostic function detects fault conditions including measurement range failure, hardware failure or parameter range violation.

The model supports the Link Master function, which provides backup of network management and allows local control using field devices.

An optional PID (proportional integral derivative) function block allows field devices to control processes, while a software download option allows communications software to be updated under operational conditions.

The flowmeter has a heavy-wall, seamless, dual-tube design that is decoupled from any process vibration or pipeline stress improving reliability and output stability.

Nine detectors enable customisation of the meter for the best combination of mass flow range, pressure drop and accuracy.

Uses range from cryogenics to molten liquids as well as in sanitary applications and in environments with aggressive chemicals.

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