Siemens SITRANS LG240, Operating Instructions Manual

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17 PBD-51041038 SITRANS LG240 - Operating Instructions
44286-EN-171021
products. These blocking distances for different mediums are listed
in chapter " Technical data ". Keep in mind for the adjustment that the
default setting for the measuring range refers to water.
The process fitting must be sealed if there is gauge or low pressure in
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
The max. permissible pressure is specified in chapter "
Technical
data " or on the type label of the sensor.
In case of difficult installation conditions, the probe can also be
mounted laterally. For this, adapt the rod with rod extensions or
angled segments.
To compensate for the resulting changes in signal runtime, let the
instrument determine the probe length automatically.
The determined probe length can deviate from the actual probe
length when using curved or angled segments.
If internal installations such as struts, ladders, etc. are present on the
vessel wall, the measuring probe should be mounted at least 300 mm
(11.81 in) away from the vessel wall.
You can find further information in the supplementary instructions of
the rod extension.
If there is a risk of the rod probe touching the vessel wall during
operation due to product movements or agitators, etc., the measuring
probe should be securely fixed at the extreme lower end.
For this, use an additional plastic sleeve (PTFE, PPS, PEEK etc.), to
protect the probe against damages.
Keep in mind that measurement is not possible below the fastening
point.
1
2
3
1
2
3
Fig. 9: Fasten the probe
1 Measuring probe
2 Retaining sleeve
3 Plastic sleeve (PTFE, PPS, PEEK etc.)
Pressure
Lateral installation
Fasten