VEGA FIBERTRAC 31 4 … 20 mA_HART - four-wire - Manual (Page 15)

15
4 Mounting
FIBERTRAC 31 • 4 … 20 mA/HART - four-wire
40446-EN-131119
Mount the FIBERTRAC 31 in such a way that the detector tube is
directly in the radiated area of the source container. Mount the FIBER-
TRAC 31 preferably side by side and make sure that no detector tube
is hidden by another sensor.
On vessels with temperature insulation, the sensor and the source
container should be preferably mounted outside of the tank insulation.
Fig. 5: Level measurement on a heated vessel with heat insulation
If this is not possible, make sure that there is a sufficiently large
cut-out in the tank insulation for mounting the sensor and the source
container. Make sure that the max. ambient temperature of the sensor
is not exceeded.
If the max. ambient temperature is exceeded, you must take suitable
measures to protect the instrument against overheating.
You can protect the instrument by providing a suitable insulation
against the heat or mounting the instrument further away from the
heat source.
Make sure these measures are taken into account already in the plan-
ning stage. If you want to carry out such measures later on, contact
our specialists to ensure that the accuracy of the application is not
impaired.
If these measures are not sufficient to maintain the max. ambient
temperature, you could consider using the water cooling system we
offer for FIBERTRAC 31.
Vessel with heat insula-
tion
Protection against heat