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TZIDC-110, TZIDC-120
DIGITAL POSITIONER | OI/TZIDC-110/TZIDC-120-EN REV. H
29
Special conditions
• Only devices that are suited for operation in hazardous areas
of Zone 2 and the conditions prevailing at the place of use
may be connected to circuits in Zone 2 (manufacturer's
declaration or certificate from a test center).
• For the ‘Feedback on the actuator position using proximity
switches’ circuit, measures outside of the device must be
implemented to prevent an up-scale of the rated voltage by
more than 40 % in the event of transient disturbances.
• It is only permissible to connect, disconnect, and switch live
circuits during installation or maintenance, or for the
purpose of carrying out repairs. Comment: It is considered
very unlikely that a potentially hazardous atmosphere would
be present in Zone 2 at the same time that installation or
maintenance or repair work was being carried out.
• Only non-flammable gases may be used for the pneumatic
power supply
• Only use suited cable entries that meet the requirements of
EN 60079-15.
Содержание TZIDC-110
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