56926BA2, Rev. 02, 04/2019
9.1 Water Cooling System
To protect the scintillators against overly high temperatures, a water cooling sys-
tem is optionally available. A water cooling system must be used if the detector
temperature may exceed +60 °C.
In this respect, ambient temperature, sun light, radiant heat of hot components
and the transition of heat from installation fixtures should be considered. With
water cooling, the detectors can be operated at a maximum ambient temperature
of 100 °C.
For the minimum cooling water requirement, please refer to the document tech-
nical information.
When operating in areas with danger of explosion, observe the specific ambient
temperature limits, which are specified in the safety manual and in the docu-
ment technical information.
If water remains in the water cooling systems at ambient temperatures below
the frost point, the cooling water system can be damaged.
u If there is a risk of frost, empty the water cooling system.
If there is a risk that the maximum operating temperature is exceeded, the cool-
ing water circuit must remain in operation even if the detector is switched off.
A failure of the cooling water system or an insufficient flow can overheat the
detector and thereby cause damage. For cooling, exclusively use water of drink-
ing water quality.
2
3
Marking grooves on the water cooling system of the rod detector
Water supply
Water discharge
Marking grooves on the water cooling system of the point detector
44 Water Cooling System Point Detector/Rod Detector
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