Overview - ABB Navigator 600 Silica User Manual

Navigator 600 Silica
Single-stream

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.
Hinged Door to Liquid
Handling Section
*
Date Label
*
A second (identical) Date Label is fixed to the underside of the Electronics Section
Fig. 2.1 Main Components
IM/NAV6S/SS–EN Rev. E
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.
Cable Entries
(Both Sides
of the Case)
Display
Keypad
Peristaltic Pump
Reaction Block
Constant-head Unit
2 Overview
Electronics Section
Liquid Handling Section
7