ADS 507165, Инструкция по установке, эксплуатации и обслуживанию, Страница: 130 / 535

4-28 ADS ® Manual
Note:
Under normal conditions, the remaining
parameters corresponding to the AV|Gated device should
not require modification. However, if additional
adjustments are necessary, the following sections provide
a detailed description of each parameter.
Ultrasonic tab – AV|Gated
Edit the following parameters corresponding to the upward-looking
ultrasonic depth sensor in the AV|Gated sensor:
z
Enable Select this checkbox to ensure the monitor begins
taking upward ultrasonic depth readings at the designated
interval upon activation. This option is selected by default.
z
Flow Type Select the option that best reflects the kind of
flow conditions that typically occur at the monitoring point
from the drop-down list:
‰ Typical
Flow exhibits a typical diurnal pattern. This is
the default setting.
‰ Wet/Stagnant Flow remains in the pipe, but moves only
during wet weather events.
‰ Usually Dry Pipe typically remains dry, except under
wet weather conditions.
‰
Electronic Offset
Enter the difference that exists between
the depth sensor readings and the manually measured depth.
The default value is 0.
‰ Deadband Select the distance from the sensor face within
which readings received will be ignored. The default value
(Auto) represents a percentage of the flow depth and should be
sufficient under normal circumstances. It also is the best
option for handling shallow flows. However, consider another
value when the sensor readings reveal a potential problem with
false dropouts. Choose a value for the deadband that is
sufficiently below the minimum depths that legitimately occur
at the monitoring point, yet above the confirmed drop-outs that
have been detected.