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Product Description
Intended Use
The YRB02-X is an external rechargeable explosion-
protected (Ex) battery pack and is used to power
Sartorius equipment in hazardous areas or locations
without AC power (see the list under item (15) on
the EC-type examination certificate and also the
instruction manual of the particular instrument for
more information).
The equipment meets the requirements for Group II
and Category 1D and 2G equipment in accordance
with the ATEX Directive 94/9/EC and can therefore
be used in Zone 1, 2, 20, 21 and 22 hazardous
areas. Use in the presence of potentially explosive
gases of group IIC and temperature class T4 is
permissible. The maximum surface temperature
(for dust protection) is 80°C.
In the temperature range of –20°C to +40°C, the
external rechargeable Ex battery pack can also be
used outside buildings.
Conceptual Design
The external rechargeable Ex battery pack consists
of two 12 V rechargeable batteries that are wired
in series and are connected to an electronics box by
cables. The outer housing of this Ex battery pack
features a membrane switch with an ON key and an
OFF key and two LEDs. The intrinsically safe cable
for connecting the battery pack to an intrinsically
safe scale is routed to the outside of the
electronics box.
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