KROHNE VARIFLUX IFS 6000 F-EEx EN - Manual (Page 14)

14 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx
2.6 Connection diagrams
Connection diagram 1: Standard cables
Hazardous locations
of Zone 1 and 2
B1 B ⊥ B2 I+ I L N
BINARY CURRENT MAINS
OUTPUTS OUTPUT SUPPLY
TERMINAL COMPARTMENT
Standard "EEx e" (optional "EEx d")
ELECTRONICS COMPARTMENT (always "EEx d")
Intrinsical safe ("ib") Increased safe ("e")
electrode circuits field coil circuits
(No. "3", "2", "1") (No. "7", "8")
Signal Converter
IFC 090 F/…-EEx
PE
FE
L
N PE 100-230 Vac
SIGNAL IN-/OUTPUTS LŸ LŸ FE 24 Vac/dc
E
Q
UI
P
O
TE
N
T
IA
L B
O
ND
IN
G
C
O
ND
UC
T
O
R
≥
4
m
m
2
(O
P
TI
O
NA
L)
Flameproof (EEx d) cable
feed-through LC-2/EEx
B A
E
lec
tr
ode
c
abl
es
-
whi
te
/pi
nk
(P
T
FE
i
ns
ul
at
ed s
hi
el
ded c
op
per
)
Field coil wires - green/blue
(PTFE insulated copper)
Flameproof (EEx d)
terminal feed-through
Flow tube
E
IFS x000 F-EEx
Primary Head
Coil
E
Coil
E = electrode
B C
2x fuse
160mA
3 2 1 7 8
3 2 1 7 8