KROHNE TIDALFLUX 2300 F Ex EN - Manual (Page 16)

4
ELECTRICAL CONNECTIONS
16
TIDALFLUX 2300 F
www.krohne.com 6/2013 - 7312442200 - AD EX TIDALFLUX 2300 - en - R02
4.1 Installation instructions
For IFC 300 F / PF and TIDALFLUX 2000 :
When used in a potentially explosive atmosphere, requiring the use of apparatus of equipment
category 2G, certified cable entry devices must be used that are suitable for the application and
correctly installed.
Unused openings must be closed with suitable certified closing elements.
To avoid voltage and current addition, the intrinsically safe circuits must be separated and wired
to EN/IEC 60 079-14.
INFORMATION!
• The internal field coil fuses of an IFC 300 electronic unit fulfill the above mentioned
requirement with respect to breaking capacity. The prospective short circuit current for the
field coil circuit is limited to 35 A.
• The clamping range for M20x1.5 cable glands is Ø 6...12 mm, the clamping range for M16x1.5
is Ø 6...10 mm.
Delivery of IFC 300 F / PF:
• Connection compartment with:
- two M20x1.5 Ex e cable glands for power circuit and signal I/O and one Ex e certified
M20x1.5 stopping plug, or
- three M20X1.5 Ex e cable gland, the 3
rd
cable gland for field bus connections.
• Connection box with:
- two M20x1.5 Ex e cable glands for electrode and field circuit and one M16x1.5 Ex e cable
gland for RS 485 circuit.
Delivery of TIDALFLUX 2000 :
• Connection compartment with:
one M20x1.5 Ex e cable gland for power circuit, one M16x1.5 Ex e cable gland for RS 485
circuit and one M20x1.5 Ex e stopping plug.
• Connection box with:
two M20x1.5 Ex e cable glands for electrode and field circuit.