Dwyer PSX2 User Manual

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(2) How to observe ﬂ ow velocity distribution screen

Typical ﬂ ow velocity distribution measured using two sensors is shown below.
Displays the radius of ﬂ ow velocity proﬁ le by a single sensor.

Pipe inside wall

Graduation
interval

Flow velocity
distribution 2

Flow velocity
distribution 1

Pipe center

Displays mean fluid velocity or flow rate.
Status display in case of an error.
See "10.8 Contents of errors in status display"
in case of status display.

Pipe inside wall

Data of cursor position

Cursor

Quick logger

Logs fluid velocity data for an hour.

Start the logger upon start-up of display of
flow velocity distribution by [Source].

See "16.5.3 Flow velocity distribution data file"
located toward the end of the volume for the
recording format.

(How to observe Flow velocity distribution 1 and Flow velocity distribution 2)

[Source]:

Select the sensor to be displayed.

Display of ﬂ ow velocity distribution begins upon selection of a source.

[Dumping] The ﬂ ow velocity distribution is displayed as averaged.

Instantaneous data is displayed, if 0 display is set.

[Cursor]

Move the cursor using

keys, and check the ﬂ uid velocity data.

Case where the measuring range is set as radius F

Flow velocity distribution 1: Distribution in the radius in case a sensor is connected to the up-

stream side connector (Sensor U)

Flow velocity distribution 2: Distribution in the radius in case a sensor is connected to the

downstream side connector (Sensor D)

Case where the measuring range is set as radius N

Flow velocity distribution 1: Distribution in the radius in case a sensor is connected to the

downstream side connector (Sensor D)

Flow velocity distribution 2: Distribution in the radius in case a sensor is connected to the up-

stream side connector (Sensor U)

Case where the measuring range is set as diameter

Distribution is displayed by diameter in areas of Flow velocity distribution 1 and Flow velocity
distribution 2. (Sensor U, Sensor D or Sensor U/D)

Note) Measurement is normally taken in radius F.

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