Hach-Lange POLYMETRON 9240 Operator Manual - Manual (Page 20)

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Analyzer Overview
3.2 Schematic process overview
The illustration below shows the major components of the analyzer.
Figure 2 Working principal
1 - Sample inlet flow adjustment (one per channel) 7 - Sample level detector 13 - Sodium ion-selective electrode
2 - Fast loop sample outlet (one per channel) 8 - Drain 14 - Temperature electrode
3 - Magnetic stirrer 9 - Drain pump 15 - Reactivation solution
4 - Conditioning valve 10 - Auto-calibration pump 16 - Conditioning solution
5 - Stirrer motor 11 - Reactivation pump 17 - Calibration solution
6 - Overflow vessel 12 - Reference electrode