Configuration and Activation 4-79
outgoing line following two incoming lines in the
manhole.
Backward Bidirectional Choose this option when the
ParaFlow or Surface Combo Sensor is installed facing
downstream and to ensure the monitor analyzes flows
moving both away from and toward the face of the sensor.
This option would be beneficial, for example, when using
a weir to measure overflows with the potential of river
intrusion.
z Maximum Velocity Select the maximum expected velocity
that will occur at the site for the monitor to use in fine-tuning
the velocity data. The Auto (default) option serves to optimize
the range and resolution of the velocity data samples to match
the characteristics of the flow. However, if the velocity
readings at the location measure at least 10 feet per second
(fps) on a regular basis, ADS recommends choosing the 15 fps
option for this parameter.
z Transmit Frequency Select the frequency at which to
transmit the signal. ADS recommends leaving the default
setting (High) for most applications. However, if hydraulic
conditions at the site are resulting in questionable or erroneous
readings, consider applying the other frequency option.
Contact ADS for assistance when necessary.
z Gain This value represents the factor applied to raw velocity
(RAWVEL entity in Qstart
XML
) to determine average velocity
and to calculate quantity for the Flow 1(2) device.
z Enable Scrubbing Select this checkbox to ensure the
monitor confirms questionable or erroneous velocity readings
based on the historical relationship between the ultrasonic
depth and velocity data for the location.
z Advanced Select this button to access the Advanced
Parameters dialog.
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