Signet 9900 Operating Instructions Manual page 53

Custom Measurements
Level and Volume Calculation in Custom Shaped Vessels
In the LEVEL/VOLUME menu, if Custom Shape is selected in the INPUT menu, you can defi ne
from three to ten Custom Points to establish the relationship of level to volume in the vessel.
● Select Manual Level Measurement mode to edit both level and volume data (dry confi guration).
● Select Automatic Level Measurement mode to accept the sensor measurement of the Level,
while you assign a volumetric value to each custom point (wet confi guration).
● Enter from 3 to 10 custom points to link level and volume values.
● The fi rst custom point must be the lowest fl uid level in the vessel. Each successive point must
be greater than the preceding point.
● The last point must be equal to or greater than the highest fl uid level in the vessel.
● A custom point should be located at all transition points in the vessel shape (for example, at
custom point #9, where the shape changes from a cylinder to a cone).
● The more complex sections should be defi ned with more points.
NOTE: The conical section of the illustration has been defi ned by custom points 1 through 9.
● Simpler sections require fewer defi ning points.
NOTE: A cylinder requires only custom points 9 and 10.
Custom point #10
Custom point #9
Custom point #8
Custom point #7
Custom point #6
Custom point #5
Custom point #4
Custom point #3
Custom point #2
Custom point #1
3000 gal.
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380 gal.
250 gal.
160 gal.
118 gal.
45 gal.
0 gal.
9900 Transmitter 53