DESCRIPTION AND OPERATION
FUNCTIONAL OPERATION
2 - 8
WBPEEUI110505A0
3. The secondary lower range value is the empty volume of
the tank (always zero).
4. The secondary upper range value is the full volume of the
tank which depends on the tank and the process.
NOTE: The empty and full volumes do not include the tank base.
The volume only includes the spherical portion of the tank.
Example:
A Type PTSDLD level transmitter is installed as shown in Figure
, and will
be configured in the United States. The tank is filled with water (specific grav-
ity = 1.0). The transmitter has an upper range limit of 360 inches of water. The
cell is mounted 12 inches below the bottom of the sphere. The sphere itself is
150 inches in diameter. The empty volume is zero and the full volume is
7,650 gallons. The compensating leg shown in Figure
2-7
is a dry leg.
Figure 2-7. Spherical Tank Measurement
T 02 22 9 A
+
–
150 IN .
12 IN .
Содержание Platinum standard Series
Страница 1: ......