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Instruction Manual
IM-106-880C, OI
September 2009
Hazardous Area OCX 8800
7-32
Figure 7-10. Function Block
Diagram for a Pressure
Transmitter used in Level
Measurement
Situation #2
The transmitter in situation #1 is installed below the tank in a position
where the liquid column in the impulse line, when the tank is empty, is
equivalent to 2.0 psi (Figure 7-11).
Figure 7-11. Situation #2
Diagram
Solution
Table 7-23 lists the appropriate configuration settings.
Table 7-23. Analog Input
Function Diagram for a Pressure
Transmitter used in Level
Measurement (Situation #2)
38740087
Analog
Measurement
AI
Function
Block
OUT_D
OUT
PID
Function
Block
AO
Function
Block
BKCAL_IN
CAS_IN
CAS_IN
OUT
BKCAL_OUT
38740088
16 ft
0ft
2.0 psi measured at
the transmitter
Empty Tank
Parameter Configured Values
L_TYPE Indirect
XD_SCALE 2 to 9 psi
OUT_SCALE 0 to 16 ft