The SITRANS FUS380 is a battery or mains supply powered 2-path flowmeter designed for numerous standard applications. It can be used in all utility applications for water flow monitoring. The SITRANS FUS380 has a display that indicates various measurement values and diagnostics. In addition, the display is fitted with an IrDA optical interface for communication with SIMATIC PDM, which can be used for data transfer and programming. Optional add-on RS 232 and RS 485 modules include MODBUS RTU protocol. 

Industry Mall

Select and order

The SITRANS FUS380 flowmeter consists of a sensor and transmitter. For details and information about the transmitter, see SITRANS FUS080.

The flowmeter can be combined with an energy calculator, see SITRANS FUE950.


  • High flexibility - Customizable ideal flowmeter solution
  • Accurate - Designed to provide high-resolution energy measurement
  • Uncompromised performance - For high volume, water-based applications, suitable for all water qualities


Measuring range
Qp 15 to 36000 m³/h (depends on size)
Nominal size
DN 50 to DN 1200 (2" to 48")
±0.5% of flow rate
Operational pressure
Pressure rate max. PN 40
 Operation temperature
0 … 60 °C (32 … 140 °F)
Medium temperature
2 … 200 °C (35.6 … 392 °F)
Bronze: Up to 150 °C (302 °F)
2-path sensor with flanges and integrated transducers
Carbon steel Bronze (only DN 50 to 80)

Application Examples: water flow in district heating plants, local networks, boiler stations, substations, chiller plants, irrigation plants and other general water applications

Download, Support, Services

Find download, support and services for the Siemens ultrasonic flowmeters

The fastest way to the experts

Proposed solutions for your queries and direct access to our experts in Technical Support.

Service offers

To remain competitive, companies in industry must ensure – and ideally increase – the availability and productivity of machines and plants. As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise.

Service catalog

As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise. With our offerings, you can expect a high degree of reliability and a successful digital future for your company.

Well trained for excellent handling

Receive standardized or individual expertise directly from the manufacturer – with training centers in more than 60 countries.

Safety integrated

Safety is key in the process industries. A failure in instruments relevant for safety may have serious implications for humans, the process and the environment. Therefore, a wide range of our process instruments come with on-board safety features for maximum risk reduction.


Whatever your process challenge – SITRANS FS has you covered

Monitoring your processes with accurate flow measurement leads to higher transparency, improved productivity – and a better bottom line. To optimize every operation, Siemens offers a comprehensive selection of inline ultrasonic and clamp-on ultrasonic flow sensors, transmitters and complete flow systems.

Your direct line to Siemens

Contact your regional partner