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Brooks Instrument adds Fieldbus transmitter to MT3809 series

March 15, 2018  By P&PC Staff

Mar. 15, 2018 – Brooks Instrument has added a new Foundation Fieldbus transmitter to its MT3809 variable area (VA) flow meter, which it says will make it easier for users to integrate the unit into their automation control systems for more efficient data capture and digital communication across the plant enterprise.

The MT3809 metal tube VA flow meter is designed for extreme conditions in various applications, according to brooks Instruments, delivers “reliable, repeatable gas and liquid flow measurement and control.” The microprocessor device interfaces directly with the MT3809 flow meter. A single two-wire bus connection compliant with the international Foundation Fieldbus standard provides power to the transmitter and communications access. The flow meter itself does not require power.

In addition, the MT3809 VA flow meter has a local operator interface with LCD display for insight into flow status and fluid measurement. These outputs are configurable and can be shown in various engineering units.


With the MT3809 VA flow meter, users can specify a single flow meter model that works across a range of high and low flow rates and operating temperatures — from -198 to 420 degrees C — with a maximum pressure rating up to 6,000 psi (413 bar) for standard units. In addition, the explosion-proof housing meets the most stringent hazardous-area classifications worldwide while a flameproof option is available for IIC/Class 1, Division 1 locations, the company adds.

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