K-System – Isolated Barriers
Mounting and Installation
DOCT-0187Y 2023-12
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3.2.1 Field Side Connection
Connecting the Field Side
Connect the field devices via the screw terminals or spring terminals.
Danger!
Explosion hazard from exposed conductors
Exposed conductors of inadequately attached cables can cause sparks that can ignite
the surrounding potentially explosive atmosphere.
When installing the device ensure that the cables are adequately attached.
Caution!
Property damage from use of inappropriate tool
Using an inappropriate tool may damage the screw heads.
• Use a slot-head screwdriver with a size of 3.5 x 0.5.
• Observe the tightening torque of the terminal screws. The tightening torque
is 0.5 Nm to 0.6 Nm.
Note
See corresponding datasheets for further information.
Danger!
Explosion hazard from wrong separation distances
If you do not observe the minimum separation distance between 2 intrinsically safe circuits,
this can lead to added currents or voltages. This can result in a current/voltage flashover
generating sparks. The sparks can ignite the surrounding potentially explosive atmosphere.
Ensure that you observe all separation distances between 2 adjacent intrinsically safe circuits
according to IEC/EN 60079-14.
Danger!
Explosion hazard from wrong separation distances
If you do not observe the minimum separation distances between intrinsically safe circuits
of associated apparatus and non-intrinsically safe circuits, this can lead to added currents
or voltages. This can result in a current/voltage flashover generating sparks.
The sparks can ignite the surrounding potentially explosive atmosphere.
Ensure that you observe the compliance of the separation distances to all non–intrinsically safe
circuits according to IEC/EN 60079–14.
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