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Reference Manual
00809-0100-4530, Rev BA
July 2009
5-21
Rosemount 5300 Series
Probe
5. Probe settings
HART command: [2, 1, 2].
F
OUNDATION Fieldbus parameters:
TRANSDUCER 1100>PROBE_TYPE
TRANSDUCER 1100>PROBE_LENGTH
TRANSDUCER 1100>GEOM_HOLD_OFF_DIST
Check that the correct Probe Type is chosen. Normally, the Probe Type is
pre-configured at the factory, but if the current configuration does not match
the actual probe, choose the correct Probe Type from the list.
The Rosemount 5300 Series transmitter automatically makes some initial
calibrations based on the chosen Probe Type. The following Probe Types are
available:
• Rigid Twin
• Flexible Twin
• Coaxial, Coaxial HP, Coaxial HTHP
• Rigid Single, Rigid Single HTHP/HP/C, Rigid Single PTFE
• Flexible Single, Flexible Single HTHP/HP/C, Flexible Single PTFE
The Probe Length is the distance from the Upper Reference Point to the end
of the probe, see Figure 5-1. If the probe is anchored to a weight, do not
include the height of the weight. The Probe Length needs to be changed if, for
example, the probe is shortened.
The Hold Off Distance/Upper Null Zone (UNZ) should not be changed
unless there are disturbances at the top of the tank. By increasing the Upper
Null Zone, measurements in this region are avoided. See “Handling of
Disturbances from Nozzle” on page C-4 for more information on how to use
the UNZ. The UNZ is set to zero in the factory configuration.