SITRANS FMS300 - Electromagnetic Flow Sensor

SITRANS FMS300 is a robust electromagnetic flow sensor for process industries, with flexible material options and high temperature and pressure capabilities.

• Standard accuracy: ±0.4% of flow rate
• Optional calibration: ±0.2% for applications requiring even tighter tolerances

High-performance electromagnetic flow transmitter for accurate conductive liquid measurement with reliable operation, easy commissioning and smart diagnostics.

Electromagnetic flow sensor for water and wastewater applications, combining low-flow sensitivity, flexible installation, and reliable long-term operation.

Ensure optimal flowmeter performance with this advanced, portable device for complex on-site verification and certification—without interrupting your process.

SITRANS FMS300 is designed for a wide range of applications, including the chemical and process industries, mining, steel, utilities, oil and gas, and water and wastewater. A broad choice of liner and electrode materials supports aggressive media, high temperatures, high pressures and other demanding conditions. Combined with SITRANS FMT020, it forms the SITRANS FM320 system with diagnostics, easier commissioning and flexible installation.

Reliable, accurate measurement in aggressive, abrasive or high-temperature applications. Supports stable process control and helps reduce uncertainty in tougher operating conditions.

With SENSORPROM™ technology, fast startup and easier transmitter replacements reduce service effort, standardize maintenance across installed bases and return the meter to operation more quickly.

With no moving parts and a rugged design, SITRANS FMS300 supports long operating intervals and keeps maintenance effort low in advanced applications.

Standard accuracy of 0.4% of rate, with optional high-accuracy calibration up to 0.2% of rate.

Up to 100 bar (Up to 1450 psi) (dependent on flange type)

Ambient temperature: -40 to 100 °C (-40 to 212 °F)

Medium temperature: -40 to 180 °C (-40 to 356 °F) (dependent on the liner)

Liners, electrodes, and sensor material

Liners: Neoprene, EPDM, PTFE, PFA, Ebonite, Linatex

Electrodes: Stainless steel AISI 316 Ti (1.4571), Hastelloy C-276/ 2.4819, Ceramic coated stainless steel AISI 316 Ti (1.4571), Ceramic coated Hastelloy C-276, Platinum, Titanium, Tantalum

Sensor Material: Carbon steel (or AISI 304) with corrosion resistant two component epoxy coating or AISI 316 L polished flanges and housing

Drinking water approvals (for EPDM), e.g. WRAS, NSF/ANSI Standard 61, compliance with Trinkwasserverordnung §14, AS/NZS 4020, GB/T 5750, ACS, Belgaqua and Kiwa.

MI-001 cold water (EU) and OIML R49: DN 25 … DN 600 (1″ … 24″)

Support 0 x DN upstream and 0 x DN downstream installation (all orientations)

Multiple liner and electrode options cover chemical, temperature, abrasion and highly corrosive applications.

Integrated diagnostics and self-verification continuously check device health, while SITRANS Verificator enables external verification with traceable reports. Results are accessible via SIMATIC PDM and SITRANS mobile IQ.

As SITRANS FM320, the system carries the Siemens EcoTech label. Benefits like up to 15% lower operational energy use, recyclable packaging, repairability and firmware updates help reduce lifecycle impact.

The SITRANS FM320 carries the Siemens EcoTech label for its sustainable, resource efficient design. It consumes less energy, uses recyclable packaging materials and features a long-lasting, easily repairable construction. This combination reduces environmental impact while maintaining the high accuracy and reliability expected from Siemens.

In the SITRANS FM320 system (FMS300 + FMT020), you can rely on high measurement precision:

The SITRANS FMS300 is engineered for long-term stability. With no moving parts and a maintenance free design, it delivers repeatable, drift free measurements for many years — even in harsh environments.

SITRANS FMS300 is designed to allow in-situ verification for health check with SITRANS Verificator. Regular calibration is therefore not required.

SITRANS FMT020 transmitter provides device diagnostics, empty pipe monitoring and integrated self-verification.

Yes. SITRANS FM320 is suitable for billing application and complies with MI-001 and OIML R-49 requirements.

Brochure | SITRANS FMT020-New-Generation Flowmeters

Sizing and calculation tools | Measurement intelligence

Configurator | Siemens Product Configurator