SITRANS FMS500

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SITRANS FMS500 is an electromagnetic flow sensor for accurate flow measurement. It is designed for underground installation, continuous submersion, and strong chemical resistance in demanding environments.

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Categories: Electromagnetic, Flow, Sensor Tags: Đồng hồ đo lưu lượng điện từ, Xử lý nước, Xử lý nước thải Brand: Siemens

Description
Specifications

Overview

The SITRANS FMS500 is an electromagnetic flow sensor designed for volumetric flow measurement of conductive liquids. It is ideal for water-related applications such as extraction, treatment, and irrigation. The sensor supports buried installation, operates reliably under continuous submersion, and offers strong chemical resistance. It provides accurate measurement even at low flow rates, with fluid velocity up to 10 m/s. The FMS500 is designed to work with an external-powered transmitter as part of a complete flow measurement system.

Key Features

Flexible installation supports both upstream and downstream flow orientation (Zero Up / Zero Down)
NBR rubber lining suitable for all water and wastewater applications
EPDM lining certified for potable water, meeting relevant regulatory approvals
Soft elastomer liner provides high abrasion resistance
High accuracy at low flow rates, ideal for leak detection in water distribution
Rugged, no moving parts design requires no maintenance for many years
Upgradeable to IP68 protection rating in the field, allowing for buried, submerged, or underwater installation
Built-in grounding electrodes eliminate the need for grounding rings in many cases
Short lead times for delivery
Overall length compliant with ISO 20456 (up to DN 400 mm)
SENSORPROM™ technology automatically loads startup settings and calibration data for easy commissioning
In-situ verification capability simplifies performance testing and validation
Fully compliant with ISO 4064, OIML R49, and EN 14154 standards

Application Areas

SITRANS FMS500 is well suited for all types of water applications, including:

Groundwater
Drinking water
Cooling water
Industrial wastewater
Sewage and slurry

SITRANS FM520

The combination of SITRANS FMS500 with the SITRANS FMT020 transmitter forms the SITRANS FM520 system.

SITRANS FM520 is a cost-effective solution for water and wastewater applications, offering flow measurement accuracy of ±0.4%, with an optional upgrade to ±0.2%.

Product characteristic	For demanding applications in the water & wastewater industry
Measurement of	Volume flow, flow velocity, electrical conductivity
Nominal diameter	– Coned sensor (octagon liner): DN 15 … 400 (½” … 16″) – Coned sensor: DN 50 … 300 (2″ … 12″) – Full bore sensor: DN 350 … 1200 (14″ … 48″)
Mode of operation
Measuring principle	Electromagnetic induction
Medium conductivity	Liquids with electrical conductivity ≥ 5 μS/cm
Excitation frequency (mains supply: 50 Hz/60 Hz)	– DN 15 … 65 (½” … 2½”): 12.5 Hz / 15 Hz – DN 80 … 150 (3″ … 6″): 6.25 Hz / 7.5 Hz – DN 200 … 300 (8″ … 12″): 3.125 Hz / 3.75 Hz – DN 350 … 1200 (14″ … 48″): 1.5625 Hz / 1.875 Hz
Process connection
Flanges
EN 1092-1	– PN 10 (145 psi) Flat face DN 200 … 300 (8″ … 12″) – PN 10 (145 psi) Raised face DN 350 … 1200 (14″ … 48″) – PN 16 (232 psi) Flat face DN 50 … 300 (2″ … 12″) – PN 16 (232 psi) Raised face DN 350 … 1200 (14″ … 48″) – PN 40 (580 psi) Flat face DN 15 … 40 (½” … 1½”)
ANSI B16.5	– Class 150 Flat face ½” … 12″ – Class 150 Raised face 14″ … 24″
AWWA C-207	Flat face 28″ … 48″
AS/NZS 4087	– PN 16 (232 psi) Flat face DN 50 … 300 (2″ … 12″) – PN 16 (232 psi) Raised face DN 350 … 1200 (14″ … 48″)
JIS B 2220:2004	10K DN 15 … 600 (½” … 24″)
Rated operating conditions
Ambient temperature
• Sensor	–20 … +70 °C (–4 … +158 °F)
• Compact with transmitter	–20 … +65 °C (–4 … +149 °F)
Operating pressure (abs)	(maximum operating pressure depending on flange type)
– DN 15 … 40 (½” … 1½”)	0.01 … 40 bar (0.15 … 580 psi)
– DN 50 … 300 (2″ … 12″)	0.03 … 20 bar (0.44 … 290 psi)
– DN 350 … 1200 (14″ … 48″)	0.01 … 16 bar (0.15 … 232 psi)
Protection class	– Standard: IP66/67, NEMA 4X/6 – Optional: IP68 and NEMA 6P (2m, 10 days) for remote sensor – IP68 and NEMA 6P (10m, continuously) for remote sensor
Mechanical load (vibration)
• Integral mount / compact version	Vibration, sinusoidal according to IEC 60068-2-6: 2 … 8.4 Hz, 3.5 mm peak 8.4 … 500 Hz, 1 g peakVibration broadband random, IEC 60068-2-64: 10 … 200 Hz, 0.003 g²/Hz 200 … 500 Hz, 0.001 g²/Hz Total: 1.54 g rms
• Remote version	Sensor:Vibration, sinusoidal: 2 … 8.4 Hz, 7.5 mm peak 8.4 … 500 Hz, 2 g peakBroadband random: 10 … 200 Hz, 0.01 g²/Hz 200 … 500 Hz, 0.003 g²/Hz Transmitter: 2 … 8.4 Hz, 1.5 mm peak 8.4 … 500 Hz, 0.7 g peak Total (sensor and transmitter): 1.54 g rms
Process temperature
NBR liner	–10 … +70 °C (14 … 158 °F)
EPDM liner	–10 … +70 °C (14 … 158 °F)
Pressure drop
• DN 15 and 25 (½” and 1″)	Max. 20 mbar (0.29 psi) at 1 m/s (3 ft/s)
• DN 40 … 300 (1½” … 12″)	Max. 25 mbar (0.36 psi) at 3 m/s (10 ft/s)
• DN 350 … 1200 (14″ … 48″)	Insignificant
Test pressure	1.5 × PN (where applicable)
Design
Dimensions	See dimensional drawings
Weight	See dimensional drawings
Material
• Housing and flanges	Carbon steel ASTM A105 with corrosion resistant coating (class C4 or C5) to EN ISO 12944
• Measuring electrode	Hastelloy C276 / 2.4819
• Grounding electrode	Hastelloy C276 / 2.4819
• Measuring pipe	Stainless steel AISI 304 / 1.4301
• Terminal box	Polycarbonate
Cable entries	4 × metric thread (M20 × 1.5)
Pressure equipment	Conforming with 97/23 EC
Electromagnetic compatibility	Conforming with 2004/108/EC
Calibration
Standard	Zero-point, 2 × 25 % and 2 × 90 %
Optional	– 5-point calibration (20 %, 40 %, 60 %, 80 %, 100 % of Qmax) – 10-point calibration (ascending and descending at 20 %, 40 %, 60 %, 80 %, 100 % of Qmax) – Matched pair calibration: default, 5-point or 10-point – ISO/IEC 17025 accredited matched-pair calibration
Certificates and approvals
General purpose	CE (LVD, PED, EMC, RoHS), UKCA
Drinking water	– WRAS (UK, BS 6920 material approval for cold water) – NSF/ANSI Standard 61 (cold water, US) – ACS (France) – DVGW W270 (Germany) – Belgaqua (Belgium) – AS/NZS 4020 (Australia/New Zealand) – GB/T 5750 (China) – Environmental Product Declaration (EPD)
Others	EAC (Kazakhstan)

Notes:

(1) DN 750, DN 1050, DN 1100 (30″, 42″, 44″) not available with EN 1092-1 (PN10 and PN16) and AS4087 flanges.
(2) Only for compact version.

SITRANS FMS500

Overview

Key Features

Application Areas

SITRANS FM520

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