28 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…5 Installation
Installing internal batteries – FET45X
Referring to Figure 43:
1 Use the Velox app to disable mobile communication. (Enable
Advanced Access Level Enable in User Access Right
Settings and navigate to Advanced Settings – Cellular 4G >
Operation mode. Click the edit icon and select Disabled and
tap the phone/tablet to the device).
2 Remove and retain the screw
A from the lid B .
3 Turn the lid
B counterclockwise and remove it from the
housing
E.
4 Carefully disconnect the plug
G from the battery holder C.
5 Carefully lift the battery holder
C from the housing E. Be
careful not to stretch the attached wires.
6 Remove the batteries
D and F from the battery holder C.
Discard the batteries in accordance with local regulations.
7 Remove and discard any silica gel bags from the housing
E.
8 Remove the O-ring from the recess in the housing
E.
9 If necessary, clean the recess and sealing faces and fit a new
O-ring using the supplied grease (ABB kit no. 3K220).
10 Install the new batteries
D and F into the battery holder
C.
11 Place new silica gel bags from spares kit in the housing
E.
12 Carefully insert the battery holder
C into the housing E.
13 Carefully connect the plug
G to the battery holder C.
14 Put the lid
B onto the housing E.
15 Turn the lid
B clockwise.
16 Refit the screw
A.
17 Use the Velox app to enable the mobile communication.
IMPORTANT (NOTE)
If fitting batteries for the first time, perform steps
1 - 5, 10, 12 - 17 of this procedure.
If replacing existing batteries, follow all the
instructions.
Always fit batteries as new pairs
Figure 43 Fitting batteries inside the PSU for FEX45X
A
B
C
E
F
G
D
GG
F
G
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