Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers 13 Maintenance
OI/AXM630–EN Rev. I 67
13.3.2 Replacing Analyzer Tubing
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.
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.
Fig. 13.2 Replacing the Pump Tubing and Capstans
G
H
D
C
F
E
J
K
L
M
Note. Mixer fitted to
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.
Note. Step 7 is applicable only to ammonia analyzers.
Note. Steps 8 and 9 are applicable only to fluoride
analyzers (ammonia optional).