USA - SITRANS FX330 Vortex Flow Meter

Vortex Flow Meter

Take your steam, gas and liquid measurements to a whole new level with the digitally based SITRANS FX330 vortex flow meter. Designed primarily for applications in auxiliary, supply and energy systems, this device is also highly versatile for use in the process industry. 

SITRANS FX330 Catalog Specifications

Download PDF

With its new features and enhanced functions like the integrated heat meter, status alarms in conformity with NAMUR NE107 and extensive Ex approvals, the SITRANS FX330 vortex flow meter is ideal for a broad range of chemical, power, and oil and gas installations. The FX330 combines the proven advantages of the well-established sensor design with the latest modern transmitter technology. Also, the FX330 is equipped with temperature compensation as standard for saturated steam applications. Upgrade it with the optional pressure sensor and the device turns into an all-rounder, combining flow, temperature and pressure measurement in one device. The vortex flow meter product line consists of two types of meters: a flange and a sandwich version.


  • Integrated pressure and temperature compensation

  • Temperature compensation for saturated steam included as standard

  • Non-wearing stainless steel construction with high resistance to corrosion, pressure and temperature

  • SIL2 certified according to IEC 61508 Edition 2

  • Useable in hazardous areas

  • Integrated reduction of nominal diameter for space-saving and economic installation

  • Redundant data management: Exchange of electronics without loss of calibration and configuration data

  • Gross and net heat calculation to support advanced energy management

  • Remote version available with cable length up to 50 m (164 ft)


Nominal size flanged version 
From DN15  to DN300 (½”  to 12”) 
Nominal size sandwich version
From DN15  to DN100 (½”  to 4”)
Process values
Volume flow, Mass flow, Corrected volume flow, Density, Temperature, Pressure,  Heat energy

Steam and gases: +/- 1%

Liquids: +/- 0.75%

Current output
4 - 20 mA HART (loop powered)
Digital output
Pulse (max. 1000 Hz), frequency, status, limit switch
HART 7, Profibus PA and Foundation Fieldbus in preparation
Pressure rating
PN 10 – 100; Class 150 - 600
Medium temperature
From -40 to 240 °C (-40 to 464 °F)
Material sensor
Stainless steel 1.4404 (316L), Hastelloy C22 on request
Transmitter enclosure
Die-cast aluminum
Enclosure rating
IP66 / 67 (NEMA 6)

EN 1092-1; ASME B16.5

Wafer design (centering rings included)

Remote transmitter
Connection cable up to 50m (164 ft), remote version in preparation
Temperature sensor
Standard integrated temperature sensor
Pressure sensor
Optional integrated pressure sensor with or without isolation valve
Display and keypad
High-resolution graphical display and 4 operating keys (alternative use magnet pen)
Ex Approvals

ATEX II2 G Ex ia - QPS IS Class I Div.1 - IECEx II2 G Ex ia

ATEX II2 G Ex d - QPS XP Class I Div.1 - IECEx II2 G Ex d

ATEX II3 G Ex nA - QPS NI Class I Div. 2 - IECEx II3 G Ex nA

ATEX II2 D Ex tb - QPS DIP Class II, III Div. 1 - IECEx II2 D Ex tb

Safety integration level (SIL)
SIL2 according IEC 61508

Download, Support, Services

Find download, support and services for the Siemens vortex flowmeters
Support Request

The fastest way to the experts

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

Process instrumentation services

Process instrumentation services

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.

Siemens Industry Online Support (SIOS)

Siemens Industry Online Support (SIOS)

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

Process instrumentation training

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

Process safety

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.


Whatever your process challenge - SITRANS FX has you covered

Monitoring your processes with accurate vortex flow measurement leads to higher transparency, improved productivity - and a better bottom line. To optimize every operation, Siemens offers integrated vortex sensors and transmitters in both flange and sandwich versions.

Customer Support: 1-800-333-7421

Contact Us