Power Supply Connections; Fitting / Replacing Internal Batteries (Integral Transmitters Only) - ABB AquaMaster 3 FET200 User Manual

AquaMaster 3 FET200
Electromagnetic flowmeter Transmitter

3.5 Power Supply Connections

AquaMaster3 has 4 power supply options:

Internal batteries (integral transmitters only) – see Section 3.5.1 (following)

External battery pack – see Section 3.5.2, page 27

Mains power – see Section 3.5.3, page 27

Renewable energy – see Section 3.5.4, page 28
Warning.

Disconnect the supply from any cables being terminated on the transmitter.

Electrical installation and earthing (grounding) must be in accordance with relevant national and
local standards.
Note. Power supply connections / earthing arrangements are identical for cathodically-protected
remote transmitter systems. For cathodically-protected integral transmitter systems, follow cathodic
installation practices.

3.5.1 Fitting / Replacing Internal Batteries (Integral Transmitters Only)

Caution.

Never remove lid when water level around the flowmeter is close to enclosure lid.

Use 3.6 V Lithium cells only

Ensure correct polarity (all cells must face upwards)

Do not mix old and new cells

Use cells from a single manufacturer

Use only batteries of the correct type, as listed in Appendix B.1, page 40.
Referring to Fig. 3.17:
1. Remove enclosure lid
2. Remove and discard silica gel bag.
3. Disconnect battery connector
4. Carefully remove battery pack
5. Carefully remove 3 cells
6. Carefully remove 3 cells
7. Fit 3 new cells to the bottom level of the pack, ensuring the correct polarity, as shown in Fig. 3.17,
page 26.
8. Fit 3 new cells to the top level of the pack.
9. Carefully refit battery pack
10. Reconnect battery connector
11. Place new silica gel bag on top of battery pack.
12. Ensuring O-ring seal and O-ring groove is clean, refit enclosure lid
OI/FET200–EN Rev. I
A
.
B
.
C
from enclosure.
D
in turn from the top level of the pack.
E
in turn from the bottom level of the pack.
C
to enclosure.
B
.
3 Electrical Installation
A
and tighten finger-tight.
25