User Defined Unit (2.6.6.) - Siemens SITRANS L 7ML5400 Operating Instructions Manual

9.2.6.6

User Defined Unit (2.6.6.)

Set the unit text to display for current volume when Volume Units (2.6.2.) (Page 186) set to
user-defined. Limited to 16 ASCII characters.
Note
The text entered is simply for display purposes. No unit conversion occurs.
9.2.6.7 Table 1-8 (2.6.7.)
If your vessel shape is more complex than any of the preconfigured shapes, you can define
the shape as a series of segments. A value is assigned to each level breakpoint and a
corresponding value is assigned to each volume breakpoint. Level values are defined in Units
(2.1.1.) (Page 172). Volume values are defined in Volume Units (2.6.2.) (Page 186).
Level Values
Volume Values
Enter up to 32 level breakpoints, where the corresponding volume is known. The values
corresponding to 0% and 100% levels must be entered, and breakpoints can be ordered from
top to bottom, or the reverse.
Breakpoints are grouped into four tables: Table 1-8, Table 9-16, Table 17-24, and Table 25-
32.
Entering breakpoints via SIMATIC PDM:
• See Using Linearization via the Quick Start wizard in the LUT400 Communications
manual
Entering breakpoints via the local push buttons:
1. The default unit for level values is m: to change it navigate to Setup (2.) (Page 172) > Sensor
(2.1) (Page 172) > Units (2.1.1.) (Page 172) , and select the desired unit.
2. Navigate to Setup (2.) (Page 172) > Volume (2.6.) (Page 184) > Table 1-8 (2.6.7.), and enter
the value.
3. Go to the appropriate table for the particular breakpoint you wish to adjust: for example, go
to Table 1-8 for breakpoint 1.
4. Under Table 1-8, go to Level 1 (2.6.7.1.) (Page 188) to enter the level value for the
breakpoint 1.
5. Under Table 1-8, go to Volume 1 (2.6.7.2.) (Page 188) to enter the volume value for the
breakpoint 1.
6. Repeat steps 3 to 5, until values have been entered for all required breakpoints.
Communications for SITRANS LUT400 (HART) Manual (7ML19985NE01)
1)
SITRANS LUT400
Operating Instructions, 04/2021, A5E33329501-AG
.
1
Parameter reference (LUI)
Range: 0.000 to 60.000
Default: 0.000
Range: 0.0 to 9999999.0
Default: 0.0
9.2 Setup (2.)
187