Proline Prosonic Flow P 500 Ultrasonic Clamp-On Flowmeter
Brand: Endress+HauserProline Prosonic Flow P 500 Ultrasonic Clamp-On Flowmeter
Brand: Endress+Hauser

Prosonic Flow P 500 is the ultrasonic clamp-on flowmeter of choice for safe and maintenance-free measurement of conductive and non-conductive liquids, even in challenging applications. It measures flow noninvasively and bidirectionally, independent of pressure, density and conductivity, and without process interruption.
FlowDC makes mounting as flexible as never before. The specified accuracy is maintained at an inlet run of only 2 x DN, even in the case of disturbed flow profiles.
Special coupling pads make this ultrasonic clamp-on system maintenance-free during the entire product life cycle.
In addition, Prosonic Flow P 500 is available with:
- high-temperature sensors for measurement up to 550 °C (1022 °F)
- a Petroleum Application Package (PAP), calculating the standard volume for liquid hydrocarbons
- Heartbeat Technology, providing continuous process transparency. This way, build-up can be detected before it affects operation
- Flexible mounting– FlowDC reduces inlet runs to a minimum
- High safety standards– Prosonic Flow P 500 is developed according to IEC 61508 functional safety requirements and holds international approvals for hazardous area, Zone 1 and Class I, Division 1
- Reliable measurement performance– proven sensors in combination with maintenance-free mounting system deliver long-term stable signals, also in high-temperature applications (≤ 550 °C/1022 °F)
- User-friendly operation– the web server offers full remote access, while the device’s touch display offers convenient on-site interaction
- Transparent process insights– Heartbeat Technology with its integrated diagnostics, verification and monitoring functions enable compliance and process safety at all times
- Low capital investment– cost-effectiveness increases with the pipe diameter (up to DN 4000/160")
Specifications
Brand
Measuring Principle
- Ultrasonic flow
Product Headline
- Clamp-on flowmeter for limited spaces in process industries with up to 3 I/Os
- Constant accuracy even when mounted with short inlet run thanks to FlowDC
- Bidirectional measurement of various fluids, e.g. liquid hydrocarbons and chemicals
Sensor Features
- High safety standards – SIL by design, international hazardous area approvals
- 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 (1/2 to 160"). Medium temperature: –40 to +550 °C (–40 to +1022 °F)
Transmitter Features
- Full access to process and diagnostic information – numerous, freely combinable I/Os. Reduced complexity and variety – freely configurable I/O functionality. Integrated verification – Heartbeat Technology
- Remote version with up to 3 I/Os. Backlit display with touch control and WLAN access. Standard cable between sensor and transmitter
Nominal Diameter Range
- Dual channel, 1 or 2 paths : DN 15 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, sound velocity, flow velocity, totalizer
Max. Measurement Error
- Volume flow:
- ±3% o.r. for DN 15
- ±2% o.r. for DN 25 to DN 200
- ±2% o.r. above DN 200
Measuring Range
- 0 to 15 m/s (0 to 50 ft/s)
Medium Temperature Range
- DN 15 to 65 (1/2 to 2-1/2"): –40 to +150°C (–40 +302 °F)
- DN 50 to 4000 (2 to 160"): –40 to +170°C (–40 to +338 °F)
- DN 50 to 600 (2 to 24"): 150°C to 550°C (+302 to +1022 °F)
Ambient Temperature
- –40 to +60 °C (–40 to +140 °F)
- –50 to +60 °C (–58 to +140 °F) optional
Transmitter Housing Material
- AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L
Degree of Protection
- Sensor remote version: IP68 type 6P
- Transmitter remote version: IP66/67, Type 4X enclosure
Display/Operation
- 4-line backlit display with touch control(operation from outside)
- Optional: WLAN
- Configuration via local display and operating tools possible
Outputs
- 3 outputs:
- 4-20 mA HART (active/passive)
- 4-20 mA (active/passive)
- Pulse/frequency/switch output (active/passive)
- Double pulse output (active/passive)
- Relay output
Inputs
- Status input
- 4-20 mA input
Digital Communication
- HART, Modbus RS485
Power Supply
- DC 24 V
- AC 100 to 230 V
- AC 100 to 230 V / DC 24 V (non-hazardous area)
Hazardous Area Approvals
- ATEX, FM/CSA, EAC, UK Ex, KC
Other Approvals and Certificates
- Other approvals and certificates
Product Safety
- CE, C-tick, EAC-marking
Functional Safety
- Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511
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