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Reference Manual
00809-0100-4530, Rev DD
May 2016
Probe length
The Probe Length is the distance between the upper reference point and the end of the
probe. If a weight is used at the end of the probe, it should not be included.
For flexible single lead probes anchored with clamps, the Probe Length should be
configured as the distance between the underside of the flange and the upper clamp (see
This parameter is pre-configured at the factory. It must be changed if the probe is
shortened.
Probe type
The transmitter is designed to optimize measurement performance for each probe type.
This parameter is pre-configured at the factory. This value needs to be changed if the probe
type is changed.
Hold Off Distance/Upper Null Zone (UNZ)
The Hold Off Distance/UNZ is equal to zero in the default configuration.This parameter
should only be changed if there are measurement problems in the upper part of the tank.
Such problems may occur if there are disturbing objects, such as a narrow nozzle with rough
walls, close to the probe. By adjusting the Hold Off Distance/UNZ, the measuring range is
reduced. See
“Handling of disturbances from nozzle” on page 300
for further information.
5.4.3
Tank environment
Measurement mode
Normally, the measurement mode does not need to be changed. The transmitter is
pre-configured according to the specified model:
Table 5-4. List of Measurement Modes for Different Rosemount 5300 Models
Submerged
is used for applications where the probe is fully submerged in liquid. In this
mode, the transmitter ignores the upper product level. See
fully submerged probes” on page 162
for more information.
Note
Only use
Submerged
for applications where the interface is measured with a fully
submerged probe.
Model
Measurement mode
Rosemount 5301
Liquid product level
(1)
Interface level with submerged probe
1. Default
setting.
Rosemount 5302
Liquid product level
Product level and interface level
Interface level with submerged probe
Solid product level
Rosemount 5303
Solid product level