Emerson Rosemount 5900C, Справочное руководство

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7. Click the
Next
button to open the Measurement Setup - Geometry window.
8. Tank Reference Height (R) is the distance from the Tank Reference Point to the Zero
Level near the tank bottom. Ensure that this number is as accurate as possible.
9. The Reference Distance (G) is the distance between the Tank Reference Point and
the Gauge Reference Point, which is located at the upper surface of the nozzle
flange or manhole cover on which the gauge is mounted. G is positive if the Tank
Reference Point is located above the Gauge Reference Point, otherwise G is
negative.
10. The Minimum Level Distance (C) is defined as the distance between the Zero Level
(Dipping Datum Point) and the minimum level (tank bottom) for the product
surface. By specifying a C-distance the measuring range can be extended to the
bottom of the tank.
C>0: the Rosemount 5900C presents negative level values when the product
surface is below the Zero Level.
You can use the
Show negative level values as zero check box if you wish to
present product levels below the Zero Level (Datum plate) as equal to zero.
F
OUNDATION
Fieldbus parameters:
TRANSDUCER 1100>TANK_HEIGHT_R
TRANSDUCER 1100>OFFSET_DIST_G
TRANSDUCER 1100>BOTTOM_OFFSET_DIST_C
TRANSDUCER 1100>TANK_PRESENTATION
Reference Manual Configuration
00809-0100-5901 September 2019
Rosemount 5900C Radar Level Gauge 181