BERTHOLD TECHNOLOGIES Uni-Probe LB 490, User Manual

Page: 145 / 730

Uni-Probe LB 490
BERTHOLD TECHNOLOGIES GmbH & Co. KG
2 – 145
Volume 2 2 Installation
2
2.3
Detector Protection
Risk of damage!
The detector may be damaged by strong mechanical stress, vibra-
tions and high temperatures.
2.3.1 Cooling
The ambient temperature must not exceed the values specified in
the technical data (see Volume 2, "1.5 Technical Data", page 2–
130). The Uni-Probe LB 490 with water cooling jackets has to be
used if temperatures exceeding 50° C are expected. The cooling
water cycle has to remain in operation even when the instrument is
turned off, if the temperature is likely to exceed 50°C.
Risk of overheating!
Make sure that the water inlet is installed at the lowest nozzle. Oth-
erwise, an air cushion may form which may have a negative effect
on the water cooling.
Explosion hazard!
The water cooling of the Uni-Probe does not cool the detector cover
and, therefore, it does not cool the pressure-proof case.
A protection cover made of a thin sheet metal may be required to
protect the detector against radiated heat. If the Uni-Probe is used
in ex-protected areas, then the ambient temperature on the
Uni-Probe must not exceed 50°C when using a water cooling.
Cooling water curves
The required amount of cooling water is dependent on the possible
heat transmission, the cooling water temperature and the detector
type. You find the cooling water curves on page 2–289. For further
information please see the technical drawing on page 2–251.