Cosa 9610, Installation, Operation And Maintenance Manual

Page: 21 / 51

Page 20 of 48
INSTALLATION, OPERATION AND MAINTENANCE MANUAL – COSA 9610™
The COSA 9610™ requires one power supply.
∞
Analyzer electronics (ATEX application).
The power has to be connected on the interference filter inside the electronics
cabinet. The cable has to lead into the analyzer through a suitably certified cable
gland. This power is supplied from the breaker panel that is in turn controlled by the X-purge
unit.
∞
Analyzer electronics (NEC US application).
The power has to be connected on the interference filter inside the electronics
cabinet. The cable has to lead into the analyzer through a suitable approved conduit
and conduit adapters.
The COSA 9610™ has multiple input and output signals, which can be split in two groups,
analog and digital signals. For both groups, a suitably certified cable gland for use with
multi core cables are foreseen for ATEX use and suitable conduit and conduit adapters for
North American installation.
If more entries are required, only suitably certified cable glands or conduit adapters are allowed
to be used and it has to be made sure that they are in good electrical contact with the white
personated sink layer on the electronics enclosure surface (paint locally to be removed
with a detergent).
For termination details see project specific drawings.
2.5.2. COSA 9610™ in explosion proof execution
Power supply cable
The COSA 9610™ requires only one power supply. The power is connected to the external
certified power switch. Supplied power must not exceed 250Vrms or 250Vdc.
Power supply cable (ATEX).
The COSA 9610™ used in ATEX approved applications requires the power supply to the unit to be
controlled via the X-purge unit. To enable this the interposing relay in the breaker/marshaling cabinet
must be connected to the control relays within the X-purge control unit.
Supplied power must not
exceed 250Vrms or 250Vdc.