112
Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
January 2015
F.3.12
Contents (volume) measurement
There are five shape options available to select, including:
Tank Shape/NLP (P011) = “
Linear
”
(see
page 112
)
Tank Shape/NLP (P011) = “
Special Plot
”
(see
page 112
)
Tank Shape/NLP (P011) = “
Horizontal Cyl Flat
”
(see
page 115
)
Tank Shape/NLP (P011) = “
Spherical
”
(see
page 115
)
Tank Shape/NLP (P011) = “
Horizontal Cyl Dome
”
(see
page 115
)
Tank Shape/NLP (P011) = “
Linear
”
This default setting is for level or volume (content) measurements involving a tank with a
constant cross-section. When “
Linear
” is selected, the level or volume is the liquid height
above the
zero level
multiplied by a scaling factor. If volume is not required, the
Scale Factor
parameter (
page 121
) is set to 1.0 unless requiring other measurement units for the output PV.
The volume of the contents is calculated by entering the volume-per-meter of height into the
Scale Factor
parameter
(
page 121
). If the liquid level is being measured in feet or inches, enter
the volume-per-feet or volume-per-inch respectively.
Tank Shape/NLP (P011) = “
Special Plot
”
When selecting “
Special Plot
”, parameters
Profile Point 1
to
10
(
page 124
) can be edited
to plot the unique profile of an irregular shaped tank or open channel (see
Figure F-2
).
Figure F-2. Two-stage weir cross-section
To derive the 10 profile points, it is necessary to have tabulated or graphical data to relate the
process value (PV) to the live liquid height.
Figure F-3 on page 114
shows an example graph of
PV versus Liquid Height. In the example, 60% of the maximum height on the X-axis relates to a
Rectangular
Weir
V-notch
Weir
4–20 mA/HART
Mobrey MSP400RH
or MSP900GH
Maximum Height
Pro
file
H
e
ight
(P014)
Bo
ttom R
e
fe
re
nc
e (
P
010)
Mobrey MCU900
Series Control Unit
Summary of Contents for MSP400RH
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Page 16: ...6 Reference Manual IP2048 RM Rev AA Section 2 Transmitter Overview January 2015 ...
Page 54: ...44 Reference Manual IP2048 RM Rev AA Section 4 Starting up January 2015 ...
Page 80: ...70 Reference Manual IP2048 RM Rev AA Appendix A Reference Data January 2015 ...
Page 84: ...74 Reference Manual IP2048 RM Rev AA Appendix B Product Certifications January 2015 ...
Page 87: ...77 Reference Manual IP2048 RM Rev AA Appendix C Integrated Display Menus January 2015 ...
Page 90: ...80 Reference Manual IP2048 RM Rev AA Appendix C Integrated Display Menus January 2015 ...
Page 98: ...88 Reference Manual IP2048 RM Rev AA Appendix E Field Communicator January 2015 ...
