ADS Environmental Services Profile Software 950015B6 User Manual
Page 120
2-80
Profile Software User's Guide
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Usually Dry Pipe typically remains dry, except under
wet weather conditions.
• Sensitivity Select the appropriate velocity sensor sensitivity
from the drop-down list. A sensitivity that is too high may
produce noise, causing interference in the signal and resulting
in spikes in the data. A sensitivity that is too low can produce
readings that are low in comparison with manual confirmation
readings. This value should only by changed on the advice of
trained ADS personnel.
• Velocity Direction Select one of the following options that
reflects the general direction of the flow at the monitoring
point and position of the velocity sensor.
Bidirectional Choose this option for monitoring points
that may experience reverse flows. The Slimline Peak
Combo 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 option for monitoring points where
reverse flows are not expected and to ensure the monitor
only analyzes positive values returned from the velocity
sensor. The Slimline Peak Combo Sensor is typically
positioned facing upstream into the flow. ADS
recommends using this setting for most applications.
Backward Choose this option for monitoring points at
which the Slimline Peak 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
Slimline Peak 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