ข้อมูลทางเทคนิค (Technical Specifications)

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Technical Specifications

Note: Accuracy and other specifications may vary by document revision, sensor selection, and device configuration. Confirm the applicable technical data before installation.

• Magnetic flowmeter transmitter SITRANS FMT020

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SITRANS FMT020 Electromagnetic Flow Transmitter

The SITRANS FMT020 from Siemens is an electromagnetic flow meter transmitter designed for reliable measurement of electrically conductive liquids in industrial applications. It supports the measurement of volumetric flow, flow velocity, and electrical conductivity, with integrated diagnostic functions and multiple options for industrial control system integration.

Its modular design supports both integral and remote mounting. The transmitter also features a local display, configurable outputs, and Micro-SD data storage to simplify commissioning, monitoring, and maintenance.

Key Features of SITRANS FMT020

• Measures volumetric flow, flow velocity, and electrical conductivity.
• Offers accuracy up to 0.2% of rate according to the supplied 2024 document.
• Supports integral and remote mounting configurations.
• Includes device self-check and empty-pipe detection functions.
• Provides analog, digital, and relay outputs.
• Supports HART, PROFINET, EtherNet/IP, and MODBUS RTU communication.
• Supports data logging, configuration backup, and firmware updates via Micro-SD.
• Enables configuration through the local display and compatible Siemens software tools.

Operating Principle

The SITRANS FMT020 uses an electromagnetic measuring principle with a pulsed constant magnetic field. Working with a compatible flow sensor, the transmitter processes measurement signals from electrically conductive liquids and provides the resulting values through its display, signal outputs, or connected control system.

Mounting Options

Integral Mount: The transmitter and flow sensor are installed as a single mechanical unit.

Remote Mount: The transmitter is installed separately from the sensor and connected through sensor cables, providing greater flexibility in equipment placement.

The transmitter uses a polycarbonate enclosure with IP66/IP67 and NEMA 4X/6 protection ratings.

Communication and Diagnostics

The SITRANS FMT020 can interface with industrial control systems through supported communication protocols and configured output modules. Built-in diagnostics include device self-check and empty-pipe detection. For remote installations, a special electrode cable may be required for empty-pipe monitoring.

Configuration is available through the local display and compatible software tools, including SIMATIC PDM and PACTware, depending on system compatibility.

Applications

The SITRANS FMT020 can be used in flow measurement systems for electrically conductive liquids, including:

• Water and wastewater systems
• Industrial process applications
• Liquid flow and volume monitoring
• Process automation systems integrated with PLCs and other control equipment

When paired with a suitable sensor, such as the SITRANS FMS500 designed for water and wastewater applications, the transmitter provides flow measurement data for monitoring and process control.

Frequently Asked Questions (FAQ)

What does the SITRANS FMT020 measure?

It measures volumetric flow, flow velocity, and electrical conductivity when used with a compatible flow sensor.

Can the SITRANS FMT020 measure all types of liquids?

No. Electromagnetic flow measurement requires electrically conductive liquids. Sensor selection must also account for the liquid properties and operating conditions.

Can the transmitter be installed separately from the sensor?

Yes. Both integral and remote mounting configurations are supported, subject to the correct cables and accessories.

Can the SITRANS FMT020 connect to a PLC?

Yes. It can connect to compatible control systems through supported signal outputs or communication protocols, depending on the selected configuration.

Conclusion

The Siemens SITRANS FMT020 is an electromagnetic flow transmitter for industrial flow measurement. With flexible mounting, multiple output and communication options, built-in diagnostics, and data storage capabilities, it is suitable for applications requiring reliable flow monitoring and integration with industrial automation systems.