User Manual SERVOPRO PLASMA Trace N2 Analyzer
APPENDIX 4 68
68
WARNING
The milliamp output, and Ethernet and RS-232 terminals (where fitted) are separated from
the analyzer mains circuits by reinforced insulation. The terminals must only be connected to
circuits that are themselves separated from mains voltages by at least reinforced insulation.
Circuits connected to terminals S1, S2, S3, ST, AL1 and AL2 shall only be powered by supply connected to
terminal C.
WARNING
The digital output terminals are separated from analyzer mains circuits by reinforced
insulation. The terminals must only be connected to circuits that are themselves separated
from mains voltages by at least reinforced insulation.
To comply with immunity and emissions requirements of the European Community Directive on EMC:
• The mains cable shall be unscreened.
• A multi-core cable with overall screen shall be used for connections to the relay output terminals;
• A twin core cable with overall screen shall be used for connection to the mA output terminals;
• The screens of the relay and mA output cables shall be connected to analyzer enclosure. The remote
end of screens shall be open circuit.
• All I/O cables and sample pipes are formed into a bundle and routed away from analyzer enclosure.
WARNING
The cable connected to the Ethernet port shall not be longer than 30 m, nor shall it leave the
building in which the analyzer is installed without suitable isolation, nor shall it be routed
outside of the building in which the analyzer is installed.
WARNING
The cable connected to the relay output terminal shall not be longer than 30 m, nor shall it
leave the building in which the analyzer is installed without suitable isolation, nor shall it be
routed outside of the building in which the analyzer is installed.
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