4
M
ounting
4
.
1
G
eneral instructions
T
he source container is part of the measuring system
.
I
n case the
source container is already equipped with an active isotope
,
the
source container must be locked before mounting
.
D
anger
:
B
efore mounting make sure that the source is reliably switched o
ff
.
U
se a padlock to secure the source container in the switched
-
o
ff
condition and prevent it from being inadvertently switched on
.
U
se the recommended cables
(
see chapter
"
C
onnecting to power
supply
"
)
and tighten the cable gland
.
Y
ou can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry
.
R
ain and condensation water can thus drain o
ff
.
T
his
applies mainly to outdoor mounting as well as installation in areas
where high humidity is expected
(
e
.
g
.
through cleaning processes
)
or
on cooled or heated vessels
.
M
ake sure that all parts of the instrument exposed to the process
,
in
particular the active measuring component
,
process seal and process
fi
tting
,
are suitable for the existing process conditions
.
T
hese include
above all the process pressure
,
process temperature as well as the
chemical properties of the medium
.
Y
ou can
fi
nd the speci
fi
cations in chapter
"
T
echnical data
"
and on the
type label
.
I
n the case of instrument housings with self
-
sealing
NPT
threads
,
it is
not possible to have the cable glands screwed in at the factory
.
T
he
openings for the cable glands are therefore covered with red protective
caps as transport protection
.
P
rior to setup you have to replace these protective caps with approved
cable glands or close the openings with suitable blind plugs
.
T
he suitable cable glands and blind plugs come with the instrument
.
4
.
2
I
nstructions for installation
N
ote
:
D
uring the planning stage
,
our specialists will analyse the conditions of
the measuring point and dimension the source
(
isotope
)
accordingly
.
Y
ou get a
"
S
ource
S
izing
"
document specifying the required isotope
strength and containing all relevant mounting information for your
measuring point
.
S
witch o
ff
source
M
oisture
S
uitability for the pro
-
cess conditions
P
rotective caps
M
ounting position
12
POINTRAC
31
•
F
oundation
F
ieldbus
4
M
ounting
41779
-
EN
-
120329
