12
3 Mounting
FIBERTRAC 31 • Four-wire 4 … 20 mA/HART
62067-EN-211203
Fig. 6: Level measurement on a heated vessel with heat insulation
Ifthisisnotpossible,makesurethatthereisasucientlylarge
cut-out in the tank insulation for mounting the sensor and the source
container.Makesurethatthemax.ambienttemperatureofthesensor
isnotexceeded.
Ifthemax.ambienttemperatureisexceeded,youmusttakesuitable
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-
ningstage.Ifyouwanttocarryoutsuchmeasureslateron,contact
our specialists to ensure that the accuracy of the application is not
impaired.
Ifthesemeasuresarenotsucienttomaintainthemax.ambient
temperature,youcouldconsiderusingthewateroraircoolingsystem
weoerforFIBERTRAC31.
The cooling system must also be included in the calculations for the
measuring point. Contact our specialists regarding the dimensioning
of the cooling.
Protection against heat