VEGA VEGASOURCE 35 - Manual (Page 19)

19
4 Mounting
VEGASOURCE 35 •
38132-EN-130415
4 Mounting
4.1 General instructions
•
For mounting of VEGASOURCE 35 you need a special handling
permit.
•
Mounting must only be carried out by authorized, qualified person-
nel monitored for radiation exposure according to the local legisla-
tion or the handling permit. Take note of the specifications in the
existing handling permit. Take the local conditions into account.
•
Carry out all work within the shortest possible time and at the larg-
est possible distance. Provide suitable shielding
•
Avoid risk to other persons by taking suitabke measures (e.g.
safety fence, etc.)
•
All mounting and dismounting work must only carried out in switch
position "OFF", secured with a lock.
•
Keep the weight of the source holder in mind when mounting (up
to 100 kg or 220 lbs)
•
Depending on the version, the centre of gravity of VEGASOURCE
35 can vary. Keep this in mind during crane transport on the lug
Versions with manual changeover
Protect the source container against moisture and hence against cor-
rosion. If the source container is exposed directly to weather effects,
you should cover it with a roof or a suitable protective cover.
Version with pneumatic switching facility
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry. Rain and condensation water can thus drain off. This ap-
plies 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.
The pneumatic actuator must not be used under ambient conditions
that can cause corrosion in and on the pneumatic actuator.
4.2 Mounting instructions
For continuous level measurement the source container must be
mounted slightly above or at the height of the max. level. The radiation
must be directed exactly towards the detector mounted on the op-
posite side.
The angle of the orientation of the source holder corresponds to the
half of the exit angle.
The source container VEGASOURCE should be mounted as close as
possible to the vessel.
However, a distance can often not be avoided with large measuring
ranges and small vessel diameters.
General information
Moisture
Orientation - Level meas-
urement