23
SITRANS F M MAGFLO
3. Project guidance
DKFD.PS.027.W3.02
Project guidance
The sensor and signal converter can be installed
either compact or remote.
With compact installation the temperature of
medium must be according to the graph.
With remote installation, the cable length and
type described under "Technical data", chapter
2 must be used.
Compact/remote installa-
tion
IP 68 applications only
If the sensor is buried or permanently sub-
merged, the terminal box must be encapsu-
lated with silicon dielectric gel.
Mix the two components well and pour the
contents into the terminal box.
The material is a non-toxic, transparent, self-
healing gel which cures in approx. 24 hours.
The gel can be penetrated with test instru-
ments or be removed in case of cable replace-
ment.
Horizontal installation
Vertical installation
Suggestions for the direct
burial of MAG 3100 &
MAG 5100 W sensors
If MAG 3100 or MAG 5100 W sensors are buried directly into the ground we would suggest the
following precautions are observed.
The SENSORPROM
unit should be removed from the terminal box on the sensor and relocated
in the signal converter remote mounting prior to burying the sensor. (See product manual
LS.27.V2.02).
All the sensor data plate information and serial number should be recorded for each sensor prior to
burying. This will ensure correct matching with the SENSORPROM
unit.
The sensor should be potted to IP 68 and suitable coil and electrode cables used prior to burying.
The use of pea gravel at least 300 mm all around the sensor. This provides some drainage and
also avoids caking the sensor with earth. It also helps located the sensor should excavation take
place.
Before covering the pea gravel with earth we suggest the use of electrical cable identification tape
laid above the gravel.
The sensor should not be subject to heavy vehicles applying excessive weight above the sensor or
pipeline.
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