Connecting
5.1 Safety instructions
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003
69
Power supply cable for bench-top unit
Note
Disconnecting means
Die power supply cable also serves as the disconnecting mean
s.
Make sure that the cable is
clearly recognizable
easy to reach.
The cable length must not exceed 3
m.
Analyzers in hazardous areas
If a flammable or ignitable atmosphere exists, plugs must never be disconnected or
lamps/fuses replaced when the analyzer is supplied with power.
The following applies to devices (special versions) which are operated according to ATEX in
Ex zone 2:
The ULTRAMAT 23 gas analyzers for use in Ex zone 2 must be installed in a lockable
enclosure. This enclosure must comply with the requirements of EN 60079-15 and must be
designed for all ambient conditions which can occur during operation. This enclosure only
be opened using a tool (e.g. a key).
The maximum ambient temperature is 50 °C.
Suitable measures must additionally be applied to ensure that
• the generation of potentially explosive gas mixtures inside the analyzer does not exceed
the level of Zone 2
• interferences cannot lead to a deviation of more than 40% from the rated voltage.
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