Mettler Toledo O2 ISM Bedienungsanleitung Seite 8

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– The safety of personnel as well as of the plant itself is ultimately
the responsibility of the plant opera- tor. This applies in particular
in the case of plants operating in hazardous zones.
– The oxygen sensor simulators and associated components have
no effect on the process itself and cannot influence it in the sense
of any form of control system.
– Where specific safeguards such as locks, labels, or redundant
measuring systems are necessary, these must be provided by the
plant operator.
– A defective simulator must neither be installed nor put into
service.
– No modifications to the simulators and the accessories are
allowed. The manufacturer accepts no responsibility for damage
caused by unauthorized modifications. The risk is borne entirely
by the user.
– When using cables for simulator connection not supplied and
recommended by the manufacturer the following standards need
to be considered:
• US National Electrical Code
applicable.
• Canadian Electrical (CE) Code
where applicable.
– For guidance on US installations, see ANSI/ISA-RP12.06.01,
Installation of Intrinsically Safe Systems for Hazardous (Classi-
fied) Locations.
– Control room equipment connected to intrinsically safe associated
apparatus in the US should not use or generate more than the
specified Um of the associated apparatus.
– Care must be taken during installation to avoid impacts or friction
that could create an ignition source.
– Tampering and replacement with non-factory components may
adversely affect the safe use of the system.
O ISM Qualification Kit
2
52 300 440 E
®
(ANSI/NFPA 70 [NEC
®
(CEC Part 1, CAN/CSA-C22.1),
© 12/18 Mettler-Toledo GmbH, Greifensee
O ISM Qualification Kit
2
®
]), where
Printed in Switzerland