Introduction - ABB Aztec 600 User Manual

Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers

2 Introduction

The Aztec 600 range are advanced colorimetric analyzers used
to measure the levels of iron and aluminium in water treatment
plants. They are available in both single- and multi-stream
versions; the multi-stream version can sample up to three
independent streams sequentially. This manual covers both
versions of the analyzer.
The measurement involves the addition of various chemical
reagent solutions* to the sample, in a specific order, under
constant temperature conditions. The result is a chemical
complex, in solution, that has a characteristic color. The
absorbance of this colored complex is proportional to the
concentration in the original sample, thus making it possible for
the measurement to be made optically.
During operation, a signal generated from the sensing system is
converted by the analyzer into data and this information is
presented on the display.
Analyzer main components are shown in Fig. 2.1. The hinged
lower door provides environmental protection for the liquid
handling section to ensure stabilized measurement conditions.
Hinged Door to Liquid
Handling Section
Fig. 2.1 Main Components
IM/AZT6CR–EN Rev. J
Display
To maintain optimum measurement accuracy, the analyzer
performs a 2-point calibration automatically by introducing
standard solutions of known concentrations. The analyzer
utilizes solenoid valves to introduce this solution automatically, at
predetermined intervals.
Data is stored in the analyzer's internal memory and can be
archived either to an SD Card or via an Internet connection. The
SD card can also be used to upgrade the analyzer's software –
see Appendix E, page 94.
This manual describes the operation and maintenance of the
following Aztec 600 colorimetric analyzers:

Aztec 600 Aluminium

Aztec 600 Ammonia

Aztec 600 Color

Aztec 600 Iron

Aztec 600 Manganese

Aztec 600 Manganese Low Range

Aztec 600 Phosphate
*For information about reagent solutions, contact the local ABB
representative.
Cable Entries
(both sides
of case)
Keypad
Piston Pump and
Optics
Valve Manifold
2 Introduction
Electronics
Section
Liquid Handling
Section
7