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6.2 Replacing the tundish assembly
Part number:
— AW502 065 tundish assembly
Referring to Fig. 6.3:
1. Rotate sample outlet tube A until the open end is free of
tundish assembly B.
2. Disconnect drain tube C from tundish assembly B.
3. Unscrew and remove 2 tundish retaining screws D taking
care to retain spacers E located between the rear of the
tundish assembly and the main case.
4. Remove old tundish assembly B.
5. Fit the new tundish assembly by reversing the removal
procedure.
Fig. 6.3 Replacing the tundish assembly
Navigator ADS551 | Low level dissolved oxygen | Replacement / Upgrade procedures – wet section spares | INS/ANAINST/025-EN Rev. B
6.3 Replacing the flowmeter assembly
Part number:
— AW502 060
Referring to Fig. 6.4:
1. Depress manual override button
assembly to drain the flowcell.
2. Remove the flowcell PCB cover as detailed in step 1 of
Section 6.1, page 4.
B
3. Loosen cable gland
4. Disconnect flowmeter cable
terminals TB2 – see Fig. 6.7, page 7 and remove cable.
5. Depress the QD coupling collar
lift the top QD coupling
G
tube
away from the flowmeter
6. Depress the QD coupling collar
lift the flowmeter away.
7. Fit the replacement flowmeter into the QD coupling
F
refit QD coupling
to the flowmeter outlet.
IMPORTANT (NOTE)
Ensure orientation of the flow arrow on the
flowmeter is upwards.
8. Pass the flowmeter cable through the cable gland B at
the flowcell PCB housing
PCB terminals TB2 – Fig. 6.7, page 7.
9. Tighten cable gland B and refit the PCB cover as detailed
in step 1 of Section 6.1, page 4.
10. Ensure the sample outlet tube
J
tundish assembly
.
Fig. 6.4 Replacing the flowmeter assembly
A
on the drain valve
at the flowcell PCB housing
D
from wet-section PCB
E
on QD coupling
F
complete with sample outlet
H
.
K
on QD coupling
C
and terminal connections to
G
is located correctly in the
C
.
F
and
L
and
L
and
5
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