8
3 Mounting
FIBERTRAC 31 • Four-wire 4 … 20 mA/HART
62067-EN-211203
3 Mounting
3.1 General instructions
The source container is part of the measuring system. In case the
sourcecontainerisalreadyequippedwithanactiveisotope,the
source container must be locked before mounting.
Danger:
Before mounting; make sure that the source is securely closed. Use
a padlock to secure the source container in the closed condition and
prevent it from being inadvertently opened.
Protect your instrument against moisture ingress through the following
measures:
•
Use a suitable connection cable (see chapter " Connecting to
power supply")
•
Tighten the cable gland or plug connector
•
Lead the connection cable downward in front of the cable entry or
plug connector
Thisappliesmainlytooutdoorinstallations,inareaswherehigh
humidityisexpected(e.g.throughcleaningprocesses)andoncooled
or heated vessels.
Note:
Make sure that during installation or maintenance no moisture or dirt
can get inside the instrument.
Tomaintainthehousingprotection,makesurethatthehousinglidis
closedduringoperationandlocked,ifnecessary.
Note:
Forsafetyreasons,theinstrumentmustonlybeoperatedwithinthe
permissibleprocessconditions.Youcannddetailedinformationon
the process conditions in chapter " Technical data" of the operating
instructions or on the type label.
Hencemakesurebeforemountingthatallpartsoftheinstrumentex-
posedtotheprocessaresuitablefortheexistingprocessconditions.
These are mainly:
•
Active measuring component
•
Processtting
•
Process seal
Process conditions in particular are:
•
Process pressure
•
Process temperature
•
Chemical properties of the medium
•
Abrasionandmechanicalinuences
Switchosource
Protection against mois-
ture
Process conditions