26
8.3.5 Replacement of power fuse(s)
a) AC versions 115/230 VAC and 100/200 VAC
Before commencing work,
note the instructions in Section 2.3 ("Before opening")
.
Then continue as follows:
1. Remove the cover of the electronics compartment.
2. Unscrew the two screws
A
of the display unit and turn the display unit carefully aside.
3. The fuse-holder in which the power fuse is mounted is accessible now to exchange the defect power fuse
F1
for one with the same rating. The rating depends on the voltage of the mains (
T200mA
for 100/115VAC and
T125mA
for 200/230 VAC setting). See also the yellow sticker on the mains transformer as shown in Figure 6
below.
4. Reassemble in reverse order (points 2 and 1).
Note the instructions of section 2.3 ("After opening") during reassembling.
Figure 6: Power supply 115/230 V
AC
.
b) 24
VAC/DC
version
Before commencing work,
note the instructions in Section 2.3 ("Before opening")
.
Then continue as follows:
1. Remove the cover of the electronics compartment.
2. Unscrew the two screws
A
of the display unit and disconnect the display unit via the flat cable connector (see
right picture of Figure 5 on the previous page).
3. Unscrew the copper earth strip (screw
C
) with the and the mounting screws
B
of the electronics unit. Pull the
unit out until the SMB connectors of the coaxial cables can be disconnected from the electronics. Then take
out the complete electronics unit. Be careful with the coaxial cables, so that they do not damage while
removing the electronics unit from the flow converter housing.
Continued on the next page !
Mains transformer
115/230 V
AC
version
Mains fuse F1 (in fuse-holder)
Sticker with fuse rating
Voltage selector
SIDE
OF DI
SPLAY UNI
T
Indication of
voltage selector
(black dot = notch)
Summary of Contents for GFM 700 F
Page 31: ...31 9 ATEX approvals 9 1 GFC 700 F EEx Signal converter...
Page 32: ...32...
Page 33: ...33...
Page 34: ...34 9 2 GFS 700 F EEx Primary head flowmeter...
Page 35: ...35...
Page 36: ...36...
