Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers
13 Maintenance
IM/AZT6CR–EN Rev. J
63
13 Maintenance
Aztec 600 analyzers are designed to be as maintenance-free as
possible. The inherent product design and auto-calibrating
features reduce the amount of maintenance required to only
external cleaning (sample lines, etc.), changing the reagents and
scheduled annual maintenance.
If followed correctly, the recommendations in this section help
prolong the life and enhance the performance of the analyzer,
thus reducing long-term operating costs.
Maintenance is divided into three categories:
changing reagents
regular visual checks
annual scheduled maintenance
13.1 Changing Reagents
The reagent requirements and consumption rates are illustrated
in appendix A of this manual.
To prevent the reagents from running out, check the
consumption weekly to predict the optimum changeover time.
Use the following procedure when changing the reagents:
1. Stop the analyzer – see Section 9.1, page 51.
2. Check that the shelf life of the new reagent bottles is
sufficient for the expected period of use.
3. Remove the caps from each bottle and change them one
by one.
4. Check to see whether the tubes are inserted correctly and
the float switches are free to move.
5. When the level sensors are correctly in place, hand-tighten
the bottle caps. This protects against the ingress of dust,
water etc.
6. Select 'Prime lines and Calibrate' and press the
key.
Take care when storing the bottles. Ensure they are date
stamped, used in strict rotation and not used after the expiry
date.
Warning.
Ensure personal protective equipment (PPE) such as
gloves
and
eye protection
are worn during any
maintenance and that any spillages are cleaned-up
using clean water.
To familiarize yourself with handling precautions,
dangers and emergency procedures, always review
the Material Safety Data Sheets prior to handling
containers, reservoirs, and delivery systems that
contain chemical reagents and standards.
Take care if cleaning any spillages and observe all
relevant safety instructions – see Section 1, page 3.
General cleaning of the instrument should be carried
out using a damp cloth only, mild detergent can be
used as a cleaning aid. Do not use Acetone or any
organic solvents.
Isolate electrical components before maintenance or
cleaning.
Observe all health and safety procedures for handling
chemicals – see Section 1, page 3.
Caution.
Avoid contamination of the solutions.
When removing the reagent sensors ensure that no
contact is made with the stem, including bare hands.
Do not top-up solution bottles.
Dispose of the used bottles and contents safely,
according to national or local regulations. Analyzer
performance relies heavily on the integrity of these
solutions so it is very important to prepare, store and
handle them with care.
