KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN - Manual (Page 30)

3
CONNECTION DIAGRAMS FOR FIELD VERSIONS
30
OPTIFLUX
www.krohne.com 07/2010 - 7309482600 - AD EX IFC 300 R06 en
3.4 Signal cable connections
Figure 3-3: Connecting with signal cable A
1 Equipotential bonding, conductor ≥ 4 mm 2
2 Field current cable acc. EN 60079-14 clause 9.3 and 11.3 (Increased safety), do not connect the screen if available.
3 Signal cable A acc. EN 60079-14 clause 12.2 (Intrinsic safety)
CAUTION!
* Outer screen connected via strain reliefs.
Figure 3-4: Connecting with signal cable B
1 Equipotential bonding, conductor ≥ 4 mm
2
2 Field current cable acc. EN 60079-14 clause 9.3 and 11.3 (Increased safety), do not connect the screen if available.
3 Signal cable B acc. EN 60079-14 clause 12.2 (Intrinsic safety)
CAUTION!
* Outer screen connected via strain reliefs.