Emerson Rosemount 3308, Reference Manual

Page: 57 / 128

Reference Manual
00809-XXXX-4811, Rev AA
February 2012
5-3
Rosemount 3308
PRELIMINARY
CONFIGURATION
PARAMETERS
The Rosemount 3308 transmitter can be configured for level, volume,
interface level, and interface distance measurements.
The Rosemount 3308 transmitter can be pre-configured according to the
ordering specifications in the Configuration Data Sheet.
Basic Configuration
The basic transmitter configuration includes setting the tank geometry
parameters. For interface measurements the dielectric constant of the top
liquid must also be given. For some applications with heavy vapor, the vapor
dielectric must be given as well.
Figure 5-3. Tank Geometry
Figure 5-4. Upper Reference
Point
For the different tank connections the Upper Reference Point is located at the
underside of the threaded adapter or at the underside of the welded flange, as
illustrated in Figure 5-4:
LRV
URV
Tank Height
Upper Null Zone
Product Level
Upper Reference Point
Lower Reference Point
Interface
Level
Probe
Length
NPT BSP (G) FLANGE
Upper Reference Point
Adapter