AQUA M A STE R4
| EL EC T R O M AG N E T I C FLO W M E T ER T R A N SM I T T ER | O I/FE T4 0 0 - EN R E V. D
27
Installing internal batteries – FET41X/43X
IMPORTANT (NOTE)
• Observe all warnings in Health, safety and security.
See page page 4.
• Never remove the transmitter lid assembly when
the water level around the flowmeter is close to the
enclosure.
• Only use 3.6 V lithium thionyl chloride D batteries
recommended by ABB - see list in
• If fitting batteries for the first time, perform steps
2, 3 and 8 to 14 of the procedure below.
• Always fit batteries as new pairs.
• The transmitter assembly is not attached to the
housing by a restraining cord/cable. After removal,
place it in a clean dry accessible location.
• On small flanged sensors, the transmitter should be
90 ° to the pipe to avoid connectors impacting the
flanges.
Referring to Figure 42:
1
If tamper detection seals or locking screw(s) are fitted
remove them – see page 37 and page 38 (not
applicable if fitting the batteries for the first time).
2
Rotate transmitter assembly
A
anticlockwise to disengage
it from transmitter housing
B
.
3
Carefully lift transmitter assembly
A
away from transmitter
housing
B
avoiding strain/damage to any attached internal
wiring
C
.
4
Carefully disconnect battery connection plug
D
.
5
Carefully disconnect sensor connection plug
E
.
6
Remove existing batteries
F
and discard safely –
refer to page 6.
7
Remove O-ring
G
from the recess in the transmitter
housing and ensure transmitter/housing mating sealing
faces are clean. If contaminated, clean recess and sealing
faces and fit a new O-ring using supplied grease type (ABB
kit no. 3K220).
8
Remove and discard any silica gel bags (not illustrated).
9
Insert new batteries
H
of the correct type into the holders,
ensuring the correct polarity (
I
= positive [+]).
10
Place new silica gel bags from spares kit (not illustrated) in
the housing.
11
Carefully connect sensor connection cable plug
E
avoiding
strain/damage to the cable loom.
12
Carefully connect battery connection plug
D
avoiding
strain/damage to the cable loom.
13
Fit transmitter assembly
A
onto transmitter housing
B
and rotate clockwise until the tamper seal openings in the
housing and transmitter assembly align fully.
14
If required fit tamper seals or refit locking screw(s) – see
page 37 and page 38.
Figure 42 Fitting internal batteries (FET41X/43X)
