Bindicator SonoTracker Ultrasonic Liquid Level, Руководство по установке и эксплуатации

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21 FULL POINT
Refer to
Figure 12
. Full Point is the distance from the face of the transducer to the top of the Span. Modifying Full
Point allows you to change the point of reference for measurement. If you add 1’ to Full Point you are essentially
moving the Span down 1’. If you take 1’ away from Full Point, you are essentially pulling the span up 1’. The
default value for Full Point is 0 (i.e., the Span begins at the face of the transducer).
The number shown upon entry into this menu shows the current Full Point for the displayed channel.
Modification of Full Point is performed by direct entry using the Alphanumeric Keys or by using the Arrow Keys
to scroll to a number. When the desired number is shown, pressing the Enter Key registers the new Full Point in
memory.
22 SPAN
Refer to
Figure 12
. The Span was entered during the Startup Procedure. The Span is displayed and modified in
this menu. Span is the distance from the Full Point to the point where the vessel is considered empty. Material
level changes within this range are displayed by the transducer.
The number shown upon entry into this menu shows the current Span for the displayed channel. Modification of
Span is performed by direct entry using the Alphanumeric Keys or by using the Arrow Keys to scroll to a number.
When the desired number is shown, pressing the Enter Key registers the new Span in memory.
The system also performs a test to insure that the span and Full Point do not exceed the maximum range.
Note: The SonoTracker Series controller calculated the default value for maximum range as 120% of the Span
input in the Startup Procedure. If you enter a Full Point or change the Span, the controller checks the (Span +
Full Point) to see if it’s less than the Maximum Range. If this requirement is not met, the controller rejects the
new Full Point or Span and displays an error message. To enter the desired Full Point or Span, first increase
Maximum Range and then enter Full Point or Span. See Figure 10d: Range/Filters Menu.
24 AVERAGE
This menu is used to set the number of individual readings (from 1 to 255) that the controller averages for each
display reading while vessel monitoring. The controller calculates a running average. The larger the number of
individual readings in the running average, the smaller affect a variation in signal will have on the average. This
results in fewer variations on the display reading and an easier to read display. Average affects the value seen on
the display as well as set points, current outputs, and serial outputs. The default value for Average is 5.
The number shown upon entry into this menu is the channel’s current averaging factor. This number can be
modified by using the Up and Down Arrow Keys or by direct entry with the Alphanumeric Keys. When the
desired number is shown, pressing the Enter Key saves the new value.
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SON280020 Rev. C