WIKA LSO.25 Manual De Instrucciones página 17

4. Design and function
For explosion protected version please note the following:
The amplifier is designed as a plug-in card for a 19" plug-in card. The plug-in card alone
doesn't fulfill the ingress protection IP 20 in accordance with EN 60529: 1991. It only is
intended for the installation into a suitable rack which guarantees the minimum ingress
protection IP 20. Not used plug-in places have if necessary to be covered with blind plates.
The distances and tracking distances particularly are between the individual plug-in cards
as well as the intrinsic safe and not intrinsic safe circuits, the requirements on the wiring as
well as the excess temperature and the dissipation power converted in the assemblies are
to take into account according to EN 60079-11:2007. To avoid mistakes, the switch ampli-
fiers are provided with an encoding system. It has to be made sure that the counter-strip is
executed availably and identically in the 19" rack.
Default coding
Supply voltage
version
AC 230 V
AC 115/120 V
AC 24 V
DC 24 V
Example: AC 230 V supply voltage version
We exclusively recommend the use of suitable racks for the guarantee of the requirements
to WIKA.
WIKA operating instructions models LSO.06, LSO.25
Encoder-strip rack,
provided at these positions
with coding pins
B-C-D-E-F-G-H-J
A, C-D-E-F-G-H-J
A-B, D-E-F-G-H-J
A-B-C, E-F-G-H-J
Encoder-strip plug-in card,
provided at these positions with one
coding pin
1
2
3
4
Encoder-strip plug-in card
Encoder-strip rack
GB
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