Navigator 600 Phosphate
Multi-stream
2 Overview
IM/NAV6P/MS–EN Rev. F
7
2 Overview
The measurement of phosphate in a sample 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 of the phosphate 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.
To maintain optimum measurement accuracy, the analyzer
performs a zero and secondary calibration automatically, at
predetermined intervals, using solenoid valves.
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 F, page 80.
*For information about reagent solutions, contact your local ABB
representative.
Fig. 2.1 Main Components
Display
Electronics Section
Liquid Handling Section
Keypad
Peristaltic Pump
Reaction Block
Constant-head Unit
Hinged Door to Liquid
Handling Section
Cable Entries
(Both Sides
of the Case)
*
Date Label
*
A second (identical) Date Label is fixed to the underside of the Electronics Section
