Kägenstrasse 7
CH-4153 Reinach

Electromagnetic flowmeter

Electromagnetic flowmeter

Specs at a glance

  • Max. measurement error

Volume flow: ±0.5 % o.r. ± 2 mm/s (±0.5 % o.r. ± 0.08 in/s)

  • Measuring range

9 dm³/min to 9600 m³/h (2.5 to 44000 gal/min)

  • Medium temperature range

Liner material hard rubber: 0 to +80 °C (+32 to +176 °F)
Liner material polyurethane: –20 to +50 °C (–4 to +122 °F)
Liner material PTFE: -20 to 70°C

  • Max. process pressure

PN 40, Class 300, 20K

  • Wetted materials

Liner: polyurethane; PTFE; hard rubber
Electrodes: 1.4435 (316L); Alloy C22, 2.4602 (UNS N06022)

Field of application

Promag W 800 is ideal for off-grid applications in the water industry, even flow measurement in direct underground installation or underwater. Promag 800 covers basic functionality, Promag 800 Advanced offers the full performance spectrum. The battery-powered transmitter provides worldwide transmission of measured data without additional energy supply. Heartbeat Technology ensures measurement reliability and compliant verification.

  • The bidirectional measuring principle is virtually independent of pressure, density, temperature and viscosity
  • Dedicated to the measurement of industrial or municipal water and wastewater

Device properties

  • International drinking water approvals
  • Degree of protection IP68 (Type 6P enclosure)
  • Transmitter housing made of durable polycarbonate
  • Battery lifetime up to 15 years
  • Measuring intervals can be adapted individually


  • With corrosion protection for underground installation or permanent underwater use
  • Improved process safety – leakage detection with low flow and pressure measurement
  • Reliable measurement – accurate measured values even with 0 x DN inlet run
  • Long-term operation – robust and completely welded sensor
  • Secure data storage and transmission – worldwide encrypted communication over the mobile network
  • Convenient commissioning and operation – device access via Bluetooth using intuitive SmartBlue app
  • Integrated verification – Heartbeat Technology

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