ADS Environmental Services Profile Software 950015B6 User Manual
Page 139
Profile Main Screen
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facing upstream into the flow. ADS recommends using this
setting for most applications.
Backward Choose this option for monitoring points at
which the Surface Combo Sensor has been positioned
downstream and to ensure the monitor only analyzes flows
moving away from the face of the sensor. One application
in which this would be the preferable option would involve
measuring velocity in an outgoing line following two
incoming lines in the manhole.
Backward Bidirectional Choose this option when the
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 that may experience of river intrusion.
• 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 default setting (Auto) serves to
optimize the range and resolution of the velocity data samples
to match the characteristics of the flow.
• Duration Select the amount of time for the sensor to
transmit and receive the velocity signal based on the noise
present at the monitoring point. Most sites require only a 1
second (default) interval. However, sites that experience
elevated noise levels or velocity dropouts to 0 (zero) require a
longer interval (2).
• Coefficient A Enter the factor (offset) by which to calibrate
surface velocity to ensure accurate surface velocity readings
across all velocity ranges. ADS strongly recommends using
the default setting (0) for this offset; therefore, please contact
ADS before modifying this setting.
• Coefficient B Enter the factor (gain) by which to calculate
surface velocity to ensure accurate surface velocity readings
across all velocity ranges. ADS strongly recommends using
the default setting (1.00); therefore, please contact ADS
before modifying this setting.