Page 69 - PBL71 OI/AXM630-EN AZTEC 600 SS (WIRO)

Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers
13.2 Regular Visual Checks
Inspect the analyzer on a regular basis to ensure the correct functioning of the system and to check the integrity of the readings:
 Check for leaks, particularly around the sample and drain pipework connections.
 Confirm sample flow by checking delivery to the constant-head unit and effluent from the drain.
 Check liquid levels in the reagent and standard solution bottles.
 Inspect all tubing and liquid-handling components for leaks and deterioration.
 Check for malfunction indications on the analyzer display. 13.3 Annual Maintenance
Annual maintenance required:
 Replace pump tubing and capstans – see Section 13.3.1  Replace analyzer tubing – see Section 13.3.2, page 67
Annual maintenance kits, that include all the components required, are available.
Annual refurbishment ensures a high level of reliability from the analyzer.
Re-order the kit when used so that all the items are available throughout the following year's operation.
For part numbers, refer to the Spares section – see Appendix G on page 90.
13 Maintenance
13.3.1 Replacing Pump Tubing and Capstans
Tools required
 No. 2 Pozidriv screwdriver  Long-nosed pliers
Procedure
1. Press the key and use the and keys to select 'Operate' followed by 'Stop Monitor' and press the key.
2. Referring to Fig. 13.1:
a. Release thumbscrews A and open the liquid-handling section door.
b. Unlock catch B, pull the liquid-handling section panel forward and lock into the vertical position using catch B.
A
B
OI/AXM630–EN Rev. J
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Note. Flush replacement tubing with clean water before fitting it to the analyzer.
Fig. 13.1 Accessing the Pump