Fieldbus Connector; Potential Equalisation - Endress+Hauser PROline Prosonic Flow 93 FOUNDATION Fieldbus Operating Instructions Manual

PROline Prosonic Flow 93 FOUNDATION Fieldbus
!
Endress+Hauser
4.3.2

Fieldbus connector

The connection technology of FOUNDATION Fieldbus allows measuring devices to be
connected to the fieldbus via uniform mechanical connections such as T-boxes,
junction boxes, etc. This connection technology using prefabricated distribution
modules and plug-in connectors offers significant advantages over conventional wiring:
• Field devices can be removed, replaced or added at any time during normal
operation. There is no interruption of bus communication.
• Installation and maintenance are significantly easier.
• Existing cable infrastructures can be used and expanded instantly, e.g. when
constructing new star distributors using 4-channel or 8-channel junction boxes.
Prosonic Flow 93 can therefore be supplied with the option of a ready-mounted fieldbus
connector. Fieldbus connectors for retrofitting can be ordered from E+H as a spare part
(see Page 100).
Fig. 43: Connector for connecting to the FOUNDATION Fieldbus
1 Protection cap for connector
2 Fieldbus connector (pin assignment/colour codes)
2.1 Brown wire: FF+ (terminal 26)
2.2 Blue wire: FF– (terminal 27)
2.3 Not assigned
2.4 Green/yellow: earth (notes on connection
3 Adapter PG 13.5 / M 20.5
Connector technical data:
– Degree of protection IP 67
– Ambient temperature: –40 ... +150 °C
4.4

Potential equalisation

No special measures for potential equalisation are required.
Note!
For instruments for use in hazardous areas, observe the corresponding guidelines in the
specific Ex documentation.
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4 Wiring
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