Siemens SITRANS FX330 Vortex Flowmeter


  • No wear – Stainless steel construction with high resistance to corrosion, pressure and temperature
  • Useable in hazardous areas – SIL2 certified according to IEC 61508 Edition 2
  • Space-saving installation – Integrated reduction of nominal diameter for economic installation
  • Redundant data management – Exchange of electronics without loss of calibration and configuration data
  • Advanced energy management – Gross and net heat calculation

Siemens SITRANS FX330 Vortex Flowmeter is primarily intended for applications in auxiliary, supply, and energy systems but is also remarkably adaptable for use in the process industry. Equipped with innovative features such as the integrated heat meter, status alarms compliant with NAMUR NE107, and comprehensive Ex approvals, the SITRANS FX330 is well-suited for a wide spectrum of installations in chemical, power, and oil and gas sectors. The vortex flowmeter product lineup includes two variations: one with a flange design and another with a sandwich configuration.


Nominal size flanged version DN15  to DN300 (½”  to 12”)
Nominal size sandwich version DN15  to DN100 (½”  to 4”)
Enclosure rating IP65 (NEMA 4X)
Process values Volume flow, mass flow, corrected volume flow, density, temperature, pressure,  heat energy
Accuracy 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
Communication HART 7, Profibus PA and Foundation Fieldbus in preparation
Pressure rating PN 10 – 100; Class 150 – 600
Material sensor Stainless steel 1.4404 (316L), Hastelloy C22 on request
Transmitter enclosure Die-cast aluminium
Enclosure rating IP66 / 67 (NEMA 6)
Connection 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 ATEXII2 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 to IEC 61508
Application examples chemical, power, and oil and gas installations


Siemens SITRANS FX330 Vortex Flowmeter_DpstarGroup