ABB Navigator 550 Manual page 3

5 Flowmeter upgrade procedure
Referring to Fig. 4.1:
1. Disconnect external sample tubing
B
connector on underside of the wet-section and allow to
drain.
2. Disconnect sample inlet tubes
D
connectors on the top of each inlet assembly
discard stream 2 and stream 3 tubing.
F
3. Loosen locknuts on the underside of each inlet assembly
E
and pull each inlet assembly adaptor out from the top side
of the wet-section.
G
4. Fit new adaptors (1 supplied with each kit) as follows:
– fit the stream 1 adaptor (single- and multi-stream) into the
inlet hole below locknut
H
locknut on the top face of the wet-section base.
Note. If upgrading a single-stream wet-section, fit
the new stream adaptor in the 2
right in the base. The hole must be punched or cut
out of the knock-out.
– for stream 2 (sodium multi-stream only), punch- or cut-out
the knock-out below locknut
into the inlet hole and secure in position using locknut
on the top face of the wet-section base.
– for stream 3 (sodium multi-stream only), punch- or cut-out
the knock-out below locknut
into the inlet hole and secure in position using locknut
on the top face of the wet-section base.
5. Re-connect stream 1 sample inlet tube
connector on the new stream 1 adaptor.
6. Push the stream 1 flowmeter
ensuring the flow arrow on the flowmeter body is facing into
the wet-section.
Hydrazine and sodium single-stream wet-sections only –
proceed to step 11.
7. Connect a 190 mm (7.5 in.) length of new sample inlet tube
M
between the stream 2 (S2) manifold inlet
barbed connector on the stream 2 adaptor.
Caution. Inlet tubing must be the specified length and
type to ensure correct operation.
8. Push the stream 2 flowmeter into the stream 2 QD coupling
ensuring the flow arrow on the flowmeter body is facing into
the wet-section.
9. Connect a 245 mm (9.6 in.) length of new sample inlet tube
O
between the stream 3 (S3) manifold inlet
barbed connector on the stream 3 adaptor.
Caution. Inlet tubing must be the specified length and
type to ensure correct operation.
Navigator 550 | Hydrazine and sodium wet-sections | Flowmeter upgrade procedures (single-stream and multi-stream) | INF13/141–EN Rev. B
A
from each inlet hose
C
from the barbed
E
H
and secure in position using
nd
inlet hole from the
I
, fit the stream 2 adaptor
J
, fit the stream 3 adaptor
C
to the barbed
K
into the QD coupling
N
and the
P
and the
10. Push the stream 3 flowmeter into the stream 3 QD coupling
ensuring the flow arrow on the flowmeter body is facing into
the wet-section.
11. Remove and retain the 4 PCB cover fixing screws and
Q
and washers and remove PCB cover
12. Remove the upper cable gland blanking plug from the top
right-hand side of the PCB housing taking care not to lose the
locking nut on the inside.
13. Fit a new cable gland
removed at step 12.
14. Punch- or cut-out the hole
and feed each flowmeter cable (supplied) through and up to
the PCB housing.
15. Feed the each cable through cable gland
flowmeter wires to the PCB terminal block numbers shown in
Table 4.1:
Stream 1*
Red
I
Stream 2**
Orange
Stream 3**
J
Blue
Table 5.1 Streams 1, 2 and 3 – terminal connections / wire colors
*Stream 1 – sodium and hydrazine single-stream wet-sections
**Streams 2 / 3 used with stream 1 for sodium multi-stream
L
wet-sections
16. Tighten cable gland
17. Connect each cable to the correct flowmeter cable connector
(stream 1 cable connector to flowmeter S1, stream 2 cable
connector to flowmeter S2, stream 3 cable connector to
flowmeter S3).
18. Change the (external) sample lines or adapt to
tubing and fit onto the correct inlet of each flowmeter.
If necessary, secure using a hose clip or similar.
19. Ensure the O-ring
located correctly in the PCB housing groove and refit the PCB
R
terminal cover
fixing screws and washers
20. Restore power to the transmitter and refer to the wet-section
Operating instructions to configure the software to enable the
flowmeter(s):
– OI/ASO550-EN Sodium
– OI/AHM550-EN Hydrazine
21. Re-introduce sample to the wet-section and check that the
flowrate is displayed on the transmitter.
5 Flowmeter upgrade procedure
R
.
S
in place of the blanking plug
T
in the base of the wet-section
S
Terminal number / cable color
Multi-stream Single-stream
13 15 17 13
Brown Black Red
19 21 23
Yellow Green
20 22 24
Violet Grey
S
to seal the cable(s) into the gland.
U
between the PCB housing and cover is
to the PCB housing using the 4 PCB cover
Q
.
and connect the
15 17
Brown Black
3
/ in. ID flexible
8
3