Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers 3Installation
18 OI/AXM630–EN Rev. I
3.6.3 Fitting Peristaltic Pump Pressure Plate
To prevent premature wear to the pump tubing, the analyzer is
supplied from the factory with the pump tubing pressure plate
not fitted. The pressure plate must be fitted and secured for the
pump to function correctly – referring to Fig. 3.10:
1. Ensure pump tubing
A is positioned correctly over pump
capstan rollers B.
2. Ensure pump tubing sleeves C and shims D are fitted
correctly in pump lower plate.
3. Fit pump pressure plate locking pin E to the pump
pressure plate F as shown, ensuring that it does not
protrude from the rear face of the pump pressure plate.
4. Position the pump pressure plate over the pump tubing
and capstans and press down firmly until fully home,
ensuring the pump tubing remains in position.
5. Press locking pin
E fully home and turn
1
/4 turn
clockwise to lock the pump pressure plate in position.
Note. During step 4, it is very important to ensure that:
– the pump tubing is not pinched
– the pump tubing remains correctly located over the
pump capstan rollers
– each tube enters its respective groove in the
pressure plate
– the sleeves and shims remain in position
Fig. 3.10 Fitting Peristaltic Pump Pressure Plate
E
F
A
B
C
D
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