SITRANS FCS400 for OEM customers

The SITRANS FCS400 is the market’s most compact sensor. The small size facilitates installation and replacement, and makes it possible to fit multiple units into tight spaces. At the heart of the compact design is the CompactCurveTM tube shape, offering an accuracy of 0.1% of flow rate and high sensitivity for optimal measurement of even very low flows.  

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In order to make a complete flowmeter system, the SITRANS FCS400 flow sensor must be combined with the transmitter SITRANS FCT030SITRANS FCT010 or SITRANS FCT070.


Typical applications: Dosing in the chemical industry (batching and dosing of chemicals, paints, fertilizers, gases), food & beverage industry (beer, juices, liquids such as chocolate, dressings), automotive industry (engine test rigs) and marine (fuel consumption, bunkering).


  • Compactness – enabling smaller and more efficient plant or skid layout and construction
  • Flexibility – available from DN15 to DN50 ensuring a broad application fit
  • Easy installation – with a wide range of standard flange, thread and hygienic connectors
  • Stable measurements – high measurement frequency, high signal to noise ratio
  • High accuracy – ±0.1% achieved at up to 100 bars and 200 °C
  • “Plug & Play” – with pre-configured sensor cable
  • Digitally reliable – all primary process variables are digitally transferred to the transmitter; SensorFlash® removable SD card transfers setup and operating data


DN15 (½")
DN25 (1")
DN50 (2")

±0.10 %

±0.05 %
Flow range
DN15: 3700 kg/h  (8157 lb/h)
DN25: 11500 kg/h (25353 lb/h)
DN50: 52000 kg/h (114640 lb/h)

4,6 - 27 kg


Wetted parts: 316L stainless steel
Enclosure: 304 stainless steel

Enclosure rating (IP)
IP 67
Pressure ratings
100 bar (1450psi)
Temperature rating
-50 … 200 °C (-58 … 392 °F)
Ambient temperature
-40 … 60 °C (-40 … 140 °F)
Process connections


Pipe threads

Hygienic threads

Hygienic clamps

EN1092-1 B1, EN1092-1 D, ANSI / ASME B16.5, JIS B 2220

ASME B1.20 (NPT), ISO228-1 G (BSPP), VCO Quick-connect

DIN11851, DIN11864-1, ISO2853, SMS 1145

DIN11864-2, DIN32676, ISO2852,  SMS 1145


Hazardous area

Pressure equipment



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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 is - SITRANS FC has you covered

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

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