Page 71 - PBL71 OI/AXM630-EN AZTEC 600 SS (WIRO)

Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers
13 Maintenance
13.3.2 Replacing Analyzer Tubing
C
M
L
F
E
D
H
G
K J
Note. Mixerfittedto fluoride analyzers – optional fitting on ammonia analyzers.
Note. Take note of the routing of all tubes removed in the following procedures to ensure the replacement tubing is routed correctly.
Fig. 13.2 Replacing the Pump Tubing and Capstans
Referring to Fig. 13.3:
1. Remove low calibration solution tubing A from valve connector and discard.
Fit 1.5 m (5 ft), 3/32 in. ID Tygon tube part no. 0212362.
2. Remove high calibration solution tubing B from valve connector and discard.
Fit 1.5 m (5 ft), 3/32 in. ID Tygon tube part no. 0212362.
3. Remove in-line mini barbed nipple connector C,
complete with reagent inlet tubing D and discard.
Connect one end of new in-line mini barbed nipple connector part no. 0214060 to reagent tubing – see H in Fig. 13.2.
Fit 1.5 m (5 ft) size 13 Tygon tube part no. 26-0027-A to other end of mini connector.
4. Remove flowcell drain tube E from flowcell drain / outlet connector and discard.
Fit 1 m (39 in) tube part no. 0212176.
5. Remove sample inlet tubing F from valve connector and side sample pot lower connector and discard.
Fit 420 mm (16.5 in) of 3/32 in. ID Tygon tube cut from remaining length of tube part no. 0212362.
6. Remove valve manifold interconnect tubing G from valve connectors and discard.
Fit 120 mm (4.7 in) of 3/32 in. ID Tygon tube cut from remaining length of tube part no. 0212362.
Note. Step 7 is applicable only to ammonia analyzers.
7. Remove heated block assembly inlet tube J and
discard.
Fit remaining 140 mm (5.5 in) of 3/32 in. ID Tygon tube part no. 0212362.
8. Remove mixer assembly inlet tube J and discard.
Fit 75 mm (3 in) of 3/32 in. ID Tygon tube cut from remaining
length of tube part no. 0212362.
9. Remove heated block assembly inlet tube K and discard.
Fit 30 mm (1.2 in) of 3/32 in. ID Tygon tube cut from remaining length of tube part no. 0212362.
OI/AXM630–EN Rev. J
67
Note. Steps 8 and 9 are applicable only to fluoride analyzers (ammonia optional).