KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN - Manual (Page 32)

4
ELECTRICAL CONNECTIONS
32
OPTIFLUX
www.krohne.com 07/2010 - 7309482600 - AD EX IFC 300 R06 en
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 IFC 300 signal converter is delivered with two Ex e certified M20x1,5 cable glands and
one Ex e certified M20x1.5 stopping plug in the connection compartment for power supply etc.
and with two Ex e certified M20x1.5 cable glands in the connection box for the field current /
electrode cables.
• The OPTIFLUX 2000 F / 4000 F / 5000 F / 6000 F flow sensors are normally delivered with two
Ex e certified M20x1.5 cable glands, clamping range Ø 6...12 mm
• The OPTIFLUX 2300 C / 4300 C / 5300 C / 6300 C / 7300 SW/C / 7300 FL/C: flow meters are
normally (connection compartment in type of Ex protection Ex e) delivered with two Ex e
certified M20x1.5 cable glands, clamping range Ø 6...12 mm, and one Ex e certified M20x1.5
stopping plug.
The optional flow meters with connection compartment in type of Ex protection Ex d
(flameproof enclosure) are normally delivered with one Ex d certified M20x1.5 stopping plug
and two temporarily non-Ex certified simple plastic plugs. The purpose of these two plugs is
only to keep the connection compartment free of dust and moisture during transport and
storage.