Technical data
Measuring principle
Measuring system
Measured variable
Measuring range
Operable flow range
Input signal
154
16
Technical data
16.1
Application
The measuring device is intended only for the flow measurement of liquids.
To ensure that the device remains in proper operating condition for its service life, use the
measuring device only for media against which the process-wetted materials are
sufficiently resistant.
16.2
Function and system design
Proline Prosonic Flow uses a measurement method based on the transit time difference.
The measuring system consists of a transmitter and one or two sensor sets. The
transmitter and sensor sets are mounted in physically separate locations. They are
interconnected by sensor cables.
The measuring system uses a measurement method based on the transit time difference.
Here, the sensors function as sound generators and sound receivers. Depending on the
application and version, the sensors can be arranged for a measurement via 1, 2, 3 or 4
traverses → 24.
The transmitter serves to control the sensor sets, to prepare, process and evaluate the
measuring signals, and to convert the signals to the desired output variable.
Information on the structure of the device → 13
16.3
Input
Direct measured variables
• Volume flow
• Flow velocity
• Sound velocity
Calculated measured variables
Mass flow
v = 0 to 15 m/s (0 to 50 ft/s)
Measuring range depending on the sensor version.
Over 150 : 1
External measured values
The measuring device has an optional interface via which an externally measured variable
(temperature) can be transmitted to the measuring device: digital input (via HART input or
Modbus)
Various pressure transmitters can be ordered from Endress+Hauser: see "Accessories"
section → 153
Proline Prosonic Flow W 400 HART
Endress+Hauser
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