Endress+Hauser Proline Prosonic Flow W 400 ultrasonic clamp-on flowmeter
007105-HW-ENDRESS-005
Overview
Prosonic Flow W 400 is a noninvasive ultrasonic clamp-on flowmeter designed for safe, cost-effective, and maintenance-free measurement of conductive and non-conductive liquids, providing high accuracy with minimal installation requirements.
Measuring principle
Ultrasonic flow
Product headline
Clamp-on meter with Heartbeat Technology and web server for the water and wastewater industry.
Short inlet run thanks to FlowDC.
Bidirectional measurement for water and wastewater as well as process water and hydropower plants.
Sensor features
Low capital investment – cost-effectiveness increases with pipe diameter (up to DN 2000/80"). Long-term stable signal – maintenance-free permanent mounting from outside with coupling pads. Reliable measurement on various pipe materials – sensor for GRP and plastic pipes available.
Mounting without process interruption. Wide nominal diameter range: DN 15 to 4000 (½ to 160"). Medium temperature up to +130 °C (+266 °F).
Transmitter features
Safe operation – no need to open the device due to display with touch control, background lighting. Full remote access – web server. Integrated diagnostics, verification and monitoring – Heartbeat Technology.
Transmitter housing made of durable polycarbonate or aluminium. Remote version for wall mounting. Integrated data logger: measured values monitoring.
Nominal diameter range
DN15 to 4000 (1/2 to 160")
Sensor materials
Clamp on system:
Sensor holder 1.4301 (304), 1.4404 (316L)
Sensor housing 1.4301 (304), 1.4404 (316L)
Strapping bands 1.4301 (304), 1.4404 (316L)
Measured variables
Volume flow, Flow velocity, Sound velocity
Max. measurement error
Volume flow:
±3% o.r. for DN15
±2% o.r. for DN25 to 200
±2% o.r. above DN200
Measuring range
0 to 15 m/s (0 to 50 ft/s)
Max. process pressure
N/A
Medium temperature range
–40 to +130 °C (–40 to +266 °F)
Ambient temperature range
Sensor DN 15 to 65: -40 to 130°C
Sensor DN 50 to 4000: -40 to 130°C
Sensor housing material
N/A
Transmitter housing material
Wall-mounted housing
Polycarbonat; AlSi10Mg, coated
Degree of protection
Transmitter: IP66/67, Type 4X enclosure
Sensor: IP66/67, Type 4X enclosure, IP68, Type 6P enclosure (optional)
Display/Operation
4‐line backlit display with touch control (operation from outside)
Configuration via local display, web browser and operating tools possible
Outputs
3 ouputs:
4‐20 mA/4‐20 mA HART (active)
Pulse/frequency/switch output (passive)
Pulse/frequency/switch output (passive)
Modbus RS485
Inputs
Status input
Digital communication
HART
Power supply
AC 100 to 240 V / AC/DC 24 V
Approvals
cCSAus
Other approvals and certificates
Other approvals and certificates
Product safety
CE, C-tick marking, EAC-marking
Metrological approvals and certificates
Flowmeter verification for all frequencies except 0.3 MHz, reference line size: 5 MHz DN 50, all other frequencies DN 100
Verification performed on accredited calibration facilities (acc. to ISO/IEC 17025)
Heartbeat Technology complies with the requirements for measurement traceability according to ISO 9001:2015 – Section 7.1.5.2 a
Marine approvals and certificates
Marine approvals and certificates
Prosonic Flow W 400 enables bidirectional flow measurement without process interruption, independent of pressure, density, or liquid conductivity. With FlowDC technology, accurate performance is ensured even with extremely short inlet runs, expanding installation flexibility. Its maintenance-free coupling system and long-term stable sensing reduce lifecycle costs, while the integrated web server simplifies operation and remote access. Heartbeat Technology delivers continuous diagnostics, verification, and monitoring for superior process transparency and safety.