Endress+Hauser Proline Prosonic Flow 91W
Ultrasonic flowmeter

Endress+Hauser Proline Prosonic Flow 91W
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Ultrasonic flow meter

Max. measurement error

Volume flow:
В±3% o.r. for DN15
В±2% o.r. for DN25 to 200
В±2% o.r. above DN200

Measuring range

0.3 to 10 m/s (1 to 33 ft/s)

Medium temperature range

-20 to +80В°C (-4 to +176 В°F)
0 to +130В°C (32 to +265 В°F) option

Max. process pressure

N/A

Wetted materials

Clamp on system:
Sensor holder 1.4308/CF-8
Sensor housing 1.4301/304
Strapping bands 1.4301/304

Item Number: Proline Prosonic Flow 91W
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  • Overview
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Ultrasonic clamp-on flow meter with Prosonic Flow system. It measures the flow of wastewater, drinking and industrial water. Overhead sensors.

Device with automatic frequency scan for max. measuring performance and cost-effective transmitter.

Measuring principle

Ultrasonic flow

Product headline

Device with automatic frequency scan for maximum measuring performance and cost-effective transmitter.
Clamp-on flow measurement of process water, salt water, demineralized water, drinking & wastewater.

Sensor features

Low capital investment cost-effectiveness increases with pipe diameter (up to DN 4000/156"). Long-term stable signal maintenance-free permanent mounting from outside with coupling pads. Process transparency diagnostic capability.
Medium temperature: 20 to +80 В°C (-4 to +176 В°F). Degree of protection IP68 (Type 6P enclosure) for pipes under water. Shock and vibration resistance according to IEC 68-2-6.

Transmitter features

Economical transmitter designed for easy applications. Fast and reliable commissioning Quick Setup menu for installation. Automatic recovery of data for servicing.
Aluminium field transmitter housing. 2-line display with push buttons. HART.

Nominal diameter range

Single channel, 1 or 2 paths : DN15 to 2000 (1/2 to 80")

Wetted materials

Clamp on system:
Sensor holder 1.4308/CF-8
Sensor housing 1.4301/304
Strapping bands 1.4301/304

Measured variables

Volume flow, sound velocity, flow velocity, signal strength, totalizer

Max. measurement error

Volume flow:
В±3% o.r. for DN15
В±2% o.r. for DN25 to 200
В±2% o.r. above DN200

Measuring range

0.3 to 10 m/s (1 to 33 ft/s)

Max. process pressure

N/A

Medium temperature range

-20 to +80В°C (-4 to +176 В°F)
0 to +130В°C (32 to +265 В°F) option

Ambient temperature range

-20 to +60 В°C (-4 to +140 В°F)

Sensor housing material

N/A

Transmitter housing material

AlSi10Mg, coated

Degree of protection

IP67, type 4X for transmitter
IP67 type 4X for sensors
IP68 type 6P for sensors (option). IP67 NEMA 4X

Display/Operation

2 lines backlit display with 3 push button

Outputs

1x 4-20 mA HART (active)
1x Pulse/frequency/switch output (passive)

Inputs

N/A

Digital communication

HART

Power supply

AC 85 to 250 V
20 to 28 V
DC 11 to 40 V

Hazardous area approvals

Non hazardous area
FM, CSA

Other approvals and certificates

Flowmeter verification for DN15, 25, 40, 50 & 100 only
EAC marking

Product safety

CE, C-Tick, EAC marking

Metrological approvals and certificates

Flowmeter verification for DN15, 25, 40, 50 & 100 only

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