FS230 Infographic

SITRANS FS230 clamp-on flow meter infographic

Ultrasonics Principle Video

Understanding the principles of ultrasonic flow

FS230 Installation Video

Learn how to install the FST030 transmitter and FSS200 sensors step by step

FS230 Overview (Replacement for FUS1010, FUH1010)

The SITRANS FS230 digital clamp-on ultrasonic flow meter is a process-optimizing solution for measuring flow in virtually any liquid application. Designed to provide both exceptional performance and outstanding cost savings, the FS230 is an ideal fit for many industries requiring high-quality liquid flow measurement.

The SITRANS FS230 flow system consists of a SITRANS FST030 transmitter paired with SITRANS FSS200 clamp-on ultrasonic sensors, which are available in three different versions: WideBeam® (High-Precision), Universal and High-Temperature.

Application examples include water and wastewater, HVAC and power, chemical, food and beverage, pharmaceutical, mining and pulp and paper.


FST030 wall-mount or pipe mount transmitter

The SITRANS FST030 is designed in an IP67/NEMA 4X aluminum enclosure with corrosion resistant coating. It can be wall or pipe mounted and locked with a padlock or wired with lead security seals. The transmitter has a modular design with discrete, replaceable electronic modules and connection boards to maintain separation between functions and facilitate field service.

The FST030 delivers true multi-parameter measurements ie. standard volume flow, density, mass flow, fluid sound velocity and temperature.

FSS200 sensors

Ultrasonic sensors transmit and receive acoustic signals directly through existing pipe walls. To cover the widest possible range of applications, Siemens offers 3 different type of clamp-on ultrasonic sensors: WideBeam® (High precision), Universal and High Temperature. WideBeam® produces a strong, focused signal that optimizes the signal-to-noise ratio, reduces sensitivity to changes in temperature, density or viscosity.

FSS200 clamp-on ultrasonic sensors are easy to install and require virtually no maintenance since they never come in contact with the process fluid.


Specifications SITRANS FST030 wall-mount transmitter


Wall-mount enclosure, 1 or 2 path


HART 7.5 or Modbus, compatible with SIMATIC PDM




IP66/67, NEMA 4X rating


Up to 6 channels combining analog, relay or digital outputs and binary input + RTD


Full graphical display, 240 x 160 pixels

Power Supply

24 to 90 V DC, 100 to 240 V AC (Universal power supply)

Approvals (Pending)

Coming Soon: FM, CSA, ATEX, IECEx

Specifications SITRANS FSS200 clamp-on ultrasonic sensors


Conductive and non-conductive liquids

Pipe sizes

0.5" to 394"

Sensor materials

Size A/B: Polyetherimide, aluminum, optional stainless steel
Size C/D: Polyetherimide, stainless steel

Size A/B: Polyetherimide, aluminum, optional stainless steel
Size C/D/E: Polyetherimide, stainless steel (Size C/D/E);

High-Temperature: Stainless steel

Temperature range

WideBeam®: -40 to 250 °F
Universal: -40 to 250 °F
High-Temperature: -40 to 450 °F

Pipe material

WideBeam®: Steel and carbon steel
Universal: Most non-steel
High-Temperature: Steel and non-steel


FM, FMc, ATEX, IECEX (Zone 0,1 and 2)


One of the world's first digital ultrasonic flow systems, the FS230 features among others:

  • Market-leading accuracy and repeatability – accuracy of 0.5 to 1% of flow rate and repeatability of 0.25% according to ISO 11631

  • Best-in-class 100 Hz data update rate – detects even the smallest, most rapid fluctuations in flow

  • Digital Sensor Link (DSL) – digitizes the signal at the earliest stage of measurement for a strong signal-to-noise ratio and high-precision measurement

  • Simplified installation – multiple setup wizards guide you through every step of commissioning

  • Easy-to-use Human Machine Interface (HMI) – fully graphical display with simple menu navigation and the option to display up to 6 customizable parameters at once

FS200 Clamp-on Utility Software for SITRANS FS230/FS220

This software utility is an update to the previously released Si-Ware software. The utility allows you to interface with any Siemens FS220 or FS230 Clamp-on flow meter to assess the condition of your flowmeter installation and to collect data for comparison with prior baseline data.