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Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
February 2015
F.3.11 Tank shape / non-linear profile (P011)
This selects the shape of a tank or an open channel, and establishes the linear or non-linear
relationship between the live liquid level (height) and the process value (PV) derived from that
level.
Note
The display (reported) measurement units for the output process value (PV) are set using
the Primary Variable Units parameter (page 120). However, this does not automatically
re-scale the PV. Use parameter PV Scale Factor (page 121) to manually re-scale the value.
The transmitter is pre-programmed with popular profiles that are mathematical formulas to
convert a linear level reading to a flow or volumetric process value (PV). The Current Output is
then driven by the flow or volumetric PV. The profile options are described in the following
sections:
“Contents (volume) measurement” on page 112 and “Flow measurement” on page 116
Field Communicator
To change the tank shape / non linear profile:
1. From the Home screen, select 2: Configure.
2. Select 2: Manual Setup, and then 3: Profiling.
3. Select 2: Set Non-Linear Profile.
4. Select a new profile, and then press “ENTER” to
save the selection.
5. Press “SEND” to update the transmitter.
Note
When messages appear, take appropriate action if needed and press “OK”.
The selected profile can be viewed at Fast Key sequence 2, 2, 3, 3.
Mobrey MCU900 Series control unit
To view or change the tank shape:
1. From the Main Menu screen, select SETUP.
2. Select the transmitter (e.g. “Tx1:MSP400RH”).
3. Select DUTY, and then select Tank Shape.
4. Follow the on-screen instructions to select and save the new setting.
(Press the Enter ( ) key if prompted to change mode to “off-line”).
5. Select “Quit” to exit to the previous menu.
Fast Keys
2, 2, 3, 2
Select Non-Linear Profile: (Linear)
Linear
Special Plotted
Horizontal Cylinder Flat
Spherical
Horizontal Cylinder Domed
Flume/weir (3/2)
V notch (5/2)
Linear
ENTER
ABORT
(Field Communicator Screen)
Tank Shape P011
Linear
Esc=Quit =Edit
(Mobrey MCU901 Screen)