Vega POINTRAC 31 - 3.6 Corresponding source container

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3 Product description
POINTRAC 31 • 8/16 mA/HART - four-wire
43388-EN-180322
The electronics module PT30… is a replacement part for radiation-
based sensors POINTRAC 31.
The electronics module can only be exchanged by VEGA service
technician.
The radiation-based sensor has temperature limits which must not
be exceeded. In case the max. permissible temperature is exceeded,
faulty measurements and a permanent damage of the sensor can be
caused.
You have several possibilities to avoid too high ambient temperatures:
Passive sun shade
Direct sun increases the temperature on the sensor by 20 °K. The
bestpossibilitytoprotectthesensoragainsttheeectsofdirectsun
is a suitable roof structure.
Ifthisisnotpossibleoronlywithgreateort,thenyoucanusethe
passive sun shade. The passive sun shade consists of a housing sun
shade and a sun protection hose and can reduce the sensor tempera-
ture by 10 °K.
Air cooling
For ambient temperatures up to +80 °C you can use an air cooling.
The cooling air is generated with vortex coolers. Please check if suf-
cientcompressedairisavailable.Youcanndfurtherinformationin
the supplementary instructions of the water cooling. The air cooling
cannotberetrotted.
Water cooling
For ambient temperatures up to +100 °C you can use a water cool-
ing.Pleasecheckifsucientcooledwaterisavailable.Youcannd
further information in the supplementary instructions of the water
cooling.Thewatercoolingcannotberetrotted.
3.6 Corresponding source container
A radioactive isotope in a suitable source holder is the prerequisite for
a radiation-based measurement setup.
The handling of radioactive substances is regulated by law. The radia-
tion protection rules of the country in which the system is operated
applyrstandforemost.
In Germany, for example, the current radiation protection ordinance
(StrlSchV) based on the Atomic Energy Law (AtG) applies.
The following points are important for measurement with radiation-
based methods:
A handling permit is required for operation of a system using gamma
rays.Thispermitisissuedbytherespectivegovernmentoceorthe
responsibleauthority(inGermany,forexample,ocesforenviron-
mental protection, trade supervisory boards, etc.)
Youcanndfurtherinstructionsintheoperatinginstructionsmanual
of the source container.
Electronics module
Device cooling
Handling permit