Siemens Sitrans LR250 Instruction Manual page 62

2.2.2. Volume conversion
Carries out a volume conversion from a level value.
2.2.2.1.
Notes:
• A greater selection of volume units is available via SIMATIC PDM.
• Default unit of AIFB1 or 2 is percent.
• You can select a different unit for your application.
Select units for either volume or level.
Level Values
Volume Values
Percent Value
2.2.2.2.
Defines the vessel shape and allows the LR250 to calculate volume instead
of level. If None is selected, no volume conversion is performed. Select the
vessel shape matching the monitored vessel or reservoir.
*
1)
PV (Primary Value): the output from the Level Transducer Block. See
function groups
more details.
Page 56 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL
1)
PV (volume/level) Units
m, cm, mm, ft, in
liter, gal
*
%
Vessel Shape
Vessel Shape
None
How the Transducer Block works:
on page 129 and
LCD DISPLAY/
Description
NONE/
No volume calculation
required
CYLINDER/
Flat end horizontal
cylinder
SPHERE/
Sphere
LINEAR/
Upright, linear (flat
bottom)
Also
required
N/A
maximum
volume
maximum
volume
maximum
volume
Transducer Block
on page 129 for
7ML19985JF02