Fieldbus terminator
Installation and commissioning
Subject to reasonable modifications due to technical advances.
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7.2
Flameproof version
• The F*-FT-Ex1.D.IEC fieldbus terminator must be installed in accordance with its
identification in Zone 1 or 2.
7.3
Intrinsically safe version
• The F*-FT-Ex1.I.IEC fieldbus terminator must be installed in accordance with its
identification in Zone 0, 1 or 2. The circuit to be supplied with power in Zone0 must
comply with ignition protection class "ia“.
Opening the encapsulation to the Ex d space is prohibited.
The F*-FT-Ex1.D.IEC fieldbus terminator must only be connected when
no voltage is present.
There must be at least 5 thread turns in mechanical connection for
installation in a flameproof housing. There must be a suitable mecha-
nism to prevent the device from coming loose in the threading as well
as one to ensure the IP protection class. This can be achieved in the
following manner:
Use of lock nuts with seals or
Use of Loctite (medium) in the threading bore holes
For installation in a housing with the "increased safety" ignition protec-
tion class, there must be suitable mechanisms to ensure IP protection
and that the device does not turn out of the threadings. This can be
achieved in the following manner:
Use of lock nuts with seals
Use of Loctite (medium) in threading bore holes
A specialist electrician must perform a check after installation!
When connecting intrinsically safe circuits together, EN 60079-14 /
IEC 60079-14 must be observed. For the Federal Republic of Germany,
the " National Foreword" to DIN EN 60079-14 / VDE 0165 Part 1 must
be observed in addition.
