Connection To Other Devices And System Parts - Honeywell enCore Series Manual

5
5.6.6

Connection to other devices and system parts

The connection diagrams for sensors and devices to which the instrument can be
connected are shown in example form in the following. This may require special
parameterization in enSuite.
Detailed information on parameterization is available in section
Notices about parameterization
minimally required settings are shown below in keywords
Regarding wiring, shielding / screening and grounding, the general industrial rules
as well as the local conditions and regulations, e.g. EN 60079-0 and EN 60079-14,
apply taking explosion protection into account.
The shielding of the cable serves to create a space free of external fields. Cable
shields can best be imagined as a continuation of the housing. In order to better
dissipate any interference that may occur, it is recommended that the shield be con-
tacted as frequently and extensively as possible.
The following options for attaching the screen to the connection cable are possible
as long as they do not breach explosion protection regulations
Options Description
(It is extremely important and mandatory that there are no grounding potential
differences between the end points of the shield.)
Two-sided Benefit:EMC-compliant connection is also effective against inductive coupling
attachment components
Drawback: Compensating currents (ground loop formation), which flow through
the screens should be prevented where possible and require appropriate action.
Benefit:Lower voltage with potential isolation in conjunction with low frequency
signals No compensating currents and ground loop formation
One-sided
Drawback: Is only effective against capacitive couplings and only produces sig-
attachment
nificant success if the screened circuit has no connection to the ground, at
least on the cable side.
GasLab Q2
GasLab Q2 after delivery and at the place of use
(p. 229) and the online help. Only the
User Manual (N )
8.3
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