SIEMENS SITRANS FMS500 Electromagnetic Flow Sensor


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Siemens SITRANS FMS500 magnetic flow meter sensor is engineered for precise volume flow measurement of conductive liquids, making it an ideal solution for various water-related applications. Whether in water abstraction, wastewater treatment, water distribution networks, or irrigation systems, this sensor delivers reliable performance.

Its rugged, fully welded design enables direct burial and constant flooding, ensuring durability even in harsh chemical environments common in water-based industries. Designed for accurate measurement in low-flow conditions, it offers a wide measurement range, from very low velocities up to 10 m/s.


With NBR or EPDM rubber lining, the SITRANS FMS500 is suitable for diverse water applications, including ground water, potable water, cooling water, wastewater, sewage, and sludge management. Paired with the compatible transmitter SITRANS FMT020, either mounted remotely or as a compact unit, it forms the magnetic flow meter system SITRANS FM520, making it a versatile solution for general-purpose water applications.

  • Zero Up and Zero Down installation capabilities
  • NBR rubber liner for all water and wastewater applications
  • EPDM liner specifically for drinking water applications requiring special approvals
  • Soft elastomer facing provides high abrasion resistance
  • Increased low flow accuracy for water leak detection
  • Rugged construction with no moving parts for maintenance-free operation over many years.
  • Simple on-site upgrade to IP68 of a standard sensor allowing underground installation, permanent immersion or underwater installation
  • Integrated grounding electrodes – no grounding rings required for many applications
  • Short delivery time
  • Built-in length according to ISO 20456 (up to DN 400 mm)
  • SENSORPROM™ Technology provides an automatic upload of start-up settings and calibration data for easy commissioning
  • Designed to allow in-situ verification for easy performance check
  • In conformity with ISO 4064, OIML R49 and EN 14154

Product Data Sheet – Siemens SITRANS FMS500 Electromagnetic Flow Sensor

Operation Manual – Siemens SITRANS FMS500 Electromagnetic Flow Sensor




Electromagnetic flow sensor

From DN 15 to DN 1200 (1/2″ to 48″)


(Measuring Range)

0 to 10 m/s
Output Dependent of Configuration

4 … 20mA

Measuring Accuracy Dependent of Configuration

Standard 0.4% of rate, option for 0.2% of rate

Operating conditions Dependent of Configuration

Max. 40 bar (Max. 580 psi) (dependent on sensor size)

-10 to 70 °C (14 to 158 °F)

Degree of Protection IP66 or IP67 with suitable cable glands
Weight Dependent of Configuration
Electrical Connections Dependent of Configuration
Explosion Protection IECEx
General Approvals Drinking Water approvals

PDM: WRAS, NSF/ANSI Standard 61, DVGW 270, AS/NZS 4020, GB/T 5750, ACS and BelgAqua

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SIEMENS SITRANS FMS500 Electromagnetic Flow Sensor

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