Navigator 600 Silica
Single-stream
2 Overview
IM/NAV6S/SS–EN Rev. E
7
2 Overview
The measurement of silica in a sample involves the addition of
various chemical reagents* to the sample, in a specific order and
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 silica 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.
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 84.
*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
