KROHNE IFC 010 Converter EN - Manual (Page 52)

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8.3 Changeover of operating voltage on AC Versions 1, 2 and 3 (not DC Version)
8.4 Replacement of electronics unit of signal converter
Switch off power source before opening the housing !
Refer to Sect. 8.5 for Figs. A-F.
1) Unscrew the 4 recessed head screws (Fig. A), and remove transparent cover.
2) Unscrew the recessed head screw (Fig. B) and remove the black plastic cover.
3) Carefully pull out the green connecting plugs (supply power and outputs) (Fig. C).
4) Unscrew the 2 recessed head screws (Fig. D) and remove the black metal cover.
5) Carefully pull out the blue 9-pin plug (connection to the primary head) (Fig. D).
6) With a screwdriver, carefully remove the 4 metal clips (Fig. E).
7) Remove the electronics unit from the housing (Fig. F) and detach the ground conductor.
8) Transpose voltage selector on the power supply PCB (illustration in Sect. 8.9)
to obtain the required voltage according to the table in Sect. 8.2.
9) Change power fuse F1, see table for fuse ratings.
10) Reassemble in reverse order, points 7) - 1) above.
Switch off power source before opening the housing !
Refer to Sect. 8.5 for Figs. A-G.
1) Unscrew the 4 recessed head screws (Fig. A), and remove transparent cover.
2) Unscrew the recessed head screw (Fig. B) and remove the black plastic cover.
3) Carefully pull out the green connecting plugs (power supply and outputs) (Fig. C).
4) Unscrew the 2 recessed head screws (Fig. D) and remove the black metal cover.
5) Carefully pull out the blue 9-pin plug (connection to the primary head) (Fig. D).
6) With a screwdriver, carefully remove the 4 metal clips (Fig. E).
7) Carefully remove the electronics unit from the housing (Fig. F) and detach the
ground conductor.
8) Carefully transpose the DATAPROM (IC 13) on the amplifier PCB (illustration in Sect. 8.9)
from the “old” to the “new” electronics unit (Fig. G). When inserting, note the direction
of the IC 13, see Sect. 8.9 “illustration of the PCBs”.
9) Check supply power and fuse F1 for the new electronics unit, and if necessary change
over or replace as described in Sect. 8.3, points 8) and 9).
10) Reassemble in reverse order, points 7) - 1) above.