Endress+Hauser Proline Prosonic Flow 90U Technical Information page 6

6
The measuring device supports the individual configuration of the measuring channels and the independent
setting of the display and outputs. As a result, the sensor type and type of installation, for example, can be
selected and configured separately for both channels.
Note!
Pay particular attention to the recommendations on installation in the "Mounting location" section, Page 26,
the "Orientation" section, Page 27, the "Inlet and outlet run" section, Page 30 and the recommendations on
the type of installation in the "Sensor arrangement" section, Page 4.
Dual-path measurement
In dual-path measurement, the transmitter is used to operate two sensor pairs which are installed on the same
pipe. Different applications can necessitate different types of installation.
a
b
a Cable for power supply
b Signal cable (outputs)
Note!
Observe the recommendations in the "Sensor arrangement" section, Page 4.
The following possibilities for outputting measured values are suitable for dual-path measurement:
• Individual output of measured values from channel 1 and 2
• Arithmetic mean of the measured values from channel 1 and 2 (CH1 + CH2 / 2)
The possibility of obtaining the mean value in dual-path measurement provides the advantage of a more stable
measured value. A measured value that is generated from two independent measuring signals is generally less
sensitive to irregularities and faults in the application.
As a result, if conditions are not ideal, for example, the dual-path system means that the different flow
components within the flow can be better determined thanks to the fact that the measured values are
determined independently on two levels. Differences are then balanced out when the two measured values are
Proline Prosonic Flow 90U, 90W, 91W, 93C, 93U, 93W
A B
a
b
Endress + Hauser
A0001160