Electromagnetic flow meter Proline Promag W 400
for waterfor wastewaterflange

electromagnetic flow meter
electromagnetic flow meter
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for water, for wastewater
Protection level
for custody transfer
Other characteristics
digital, precision, with data logger, custom
Volumetric flow rate

Max.: 162,000 m³/h (5,720,976 ft³/h)

Min.: 0 m³/h (0 ft³/h)

Process temperature

Max.: 90 °C (194 °F)

Min.: -20 °C (-4 °F)

Process pressure

40 bar (580.15 psi)


0.2 %, 0.5 %


With its international approvals for custody transfer as well as drinking water, Promag W serves the broadest variety of applications. It is available as both compact or remote version. Promag W 400 saves time and costs thanks to the broad functionality of its transmitter optimized for Water & Wastewater. In addition, Heartbeat Technology ensures measurement reliability and compliant verification. The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity Ideal for water measurement , e.g. drinking water, utility water and industrial/municipal wastewater Device properties International drinking water approvals Degree of protection IP68 (Type 6P enclosure) Approved for custody transfer to MI-001/OIML R49 Transmitter housing made of durable polycarbonate or aluminium WLAN access Integrated data logger: measured values monitoring Benefits Reliable measurement at constant accuracy with 0 x DN inlet run and no pressure loss Flexible engineering – sensor with fixed or lap-joint process connections Application fitness – EN ISO 12944 corrosion protection for underground or underwater installation Improved plant availability – sensor compliant with industry-specific requirements Safe operation – no need to open the device Time-saving local operation without additional software and hardware – integrated web server Integrated verification and build-up detection – Heartbeat Technology


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.