SITRANS FS230 Gas - Siemens USA

Clamp-on ultrasonic flow system for gas

The SITRANS FS230 clamp-on, non-intrusive ultrasonic flow meter features best-in-class performance and user-friendly operation, and is well equipped to handle natural, specialty, process gas and liquid flow applications. Comprised of the industry-leading FST030 digital transmitter paired with the extensive and versatile line of FSS200 clamp-on ultrasonic sensors, the FS230 replaces the former FUG1010 for gas flow measurement applications. 

SITRANS FS230 Catalog Specifications

Download PDF


Taking liquid and gas hydrocarbon flow measurement to a new level of performance

Martin Dingman of Siemens Industry, Inc. discusses the new FS230 clamp-on ultrasonic meters for liquid and gas hydrocarbon flow measurement. Topics covered are theory of operation, innovative features and benefits, liquid and gas hydrocarbon applications, installation tips and tricks, and selection criteria. 


Questions about this webinar? Contact Martin: | LinkedIn Profile


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 1.0% of flow rate for all liquids/pipe sizes and repeatability of 0.25% according to ISO 11631
  • Available internal AGA 9 gas tables – Simplifying correction for temperature and pressure variations in gas flow
  • Industry-leading 100 Hz data update rate – Detects even the smallest variations in flow 100 times a second
  • Three resettable totalizers – Allowing simultaneous totalizing for daily, monthly and annual lease production
  • Easy to read and use graphic Human Machine Interface (HMI) – Offers intuitive menu-driven navigation as well as step-by-step setup and troubleshooting wizards, with up to 6 user-configurable views on display at a time
  • SensorFlash® internal, non-volatile data storage – Stores settings, calibration/datalogger information and certificates for easy servicing and increased uptime
  • Versatile sensors – Requires little to no maintenance and can be installed on pipes as small as 0.5 inches and as large as 394 inches (33 ft) without issue


Technical specifications

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
20 to 27 V DC, 100 to 240 V AC, 47 ... 63 Hz (universal power supply)
Conductive and non-conductive liquids
Pipe sizes
12.7 mm to 10 m (0.5" to 394")
Sensor materials


Size A/B: Polyetherimide, stainless steel, aluminum (optional)

Size C/D: Polyetherimide, stainless steel

Size A/B: Polyetherimide, stainless steel, aluminum (optional)

Size C/D: Polyetherimide, stainless steel

High-Temperature: Stainless steel

Temperature range


WideBeam®: -40 to 120 °C (-40 to 250 °F)

Universal: -40 to 120 °C (-40 to 250 °F)

High-Temperature: -40 to 230 °C (-40 to 450 °F)

Pipe material

WideBeam®: Steel and carbon steel

Universal: Most non-steel

High-Temperature: Steel and non-steel

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

Featured articles

Downloads, support & services

Find downloads, support and services for SITRANS clamp-on ultrasonic flowmeters for gas applications.
Support Request - Siemens USA

The fastest way to the experts

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

Service offers - Siemens USA

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 - Siemens USA

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.

Process Instrumentation Training - Siemens USA

Process Instrumentation Training 

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

process safety - Siemens USA

Process Safety

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.

USA | Technical Support Contact Info

How can we help you? 

Whether you need to measure pressure, temperature, flow, level or weight, Siemens has best-in-class instruments to suit the unique needs of your plant or application - along with a global network of technical support available 24 hours a day, 7 days a week. Our high-performance and cost-efficient range of industrial solutions also includes devices for valve positioning, process protection, recording, controlling, communication and more.

Customer Support: 1-800-333-7421

Contact Us