User Manual

Installation and operating instructions IFC 020
B) Power supply PCB,
AC versions
F1 Power fuse. Ratings
see Section 8.2 or
Chapter 9
SW Voltage selector for
changing the voltage
see Section 8.3
Tr Transformer
8/8
IFC 020 K and IFC 020 F: Illustrations of the PCBs 8.8
A) Amplifier PCB
IC 13 DATAPROM (sensor),
see Sect. 8.4.
S1, S3 for “empty tube”
cut-out, see Sect. 6.3.
S2, S4 not used
S6, S7 for blanking off the bus
lead, KROHNE RS
485 interface,
Sect.6.2.
X3 2-pin plug connector,
pin 7 and 8,
field power supply,
see Sect. 7.5.
X5 5-pin plug connector,
pin 1-5, signal cable,
see Sect. 7.5.
Tr
F1
SW
IC 13
X5
X3
7
8
1
2
3
S2
S1
S4
S3
4
5
S6
S7