ADS Environmental Services Profile Software 950015B6 - Manual (Page 153)

Profile Main Screen 2-113
CONFIDENTIAL – Covered by ADS Software License Agreement
1998 - 2012 ADS LLC. All Rights Reserved.
• Velocity Direction Select one of the following options that
represents the general direction of the flow at the location and
the position of the velocity sensor. The velocity sensor
typically is positioned facing upstream into the oncoming
flow.
 Bidirectional Choose this option for monitoring points
that may experience reverse flows and where the velocity
sensor is typically positioned facing upstream into the
flow. Choosing this ensures the monitor analyzes both
positive and negative values returned from the velocity
sensor.
 Forward Choose this for monitoring points where reverse
flows are not expected, the velocity sensor is facing
upstream into the flow, and to ensure the monitor only
analyzes positive values returned from the velocity sensor.
This is the most common Velocity Direction selected.
 Backward Choose this option for monitoring points
where the velocity sensor is positioned facing downstream
and to ensure the monitor only analyzes flows moving
away from the face of the sensor. One application for
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 for
monitoring points where the velocity sensor is facing
downstream and to ensure the monitor analyzes flows
moving both away from and toward the face of the sensor.
For example, this option would be beneficial when using a
weir to measure overflows with the potential of river
intrusion.
• Max Velocity Select the maximum velocity you expect to
occur at the site for the monitor to use in fine-tuning the
velocity data. The Auto (default) setting serves to optimize
the range and resolution of the velocity data samples to match
the characteristics of the flow.