Operating the analyzer
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Waltron User Manual 101-045-E.1
9031CX Sodium Analyzer
3.5
MAIN MENU
3.5.1
MAIN MENU – USER MODE
The default display when the analyzer is online is the Main Menu in User Mode. In User Mode the user is
able to access only the COMMANDS window and the DISPLAY window and all functions within these
windows.
3.5.2
COMMANDS WINDOW
Use the touch screen to open the Commands Window to initiate calibrations.
3.5.3
CAL 2 PT
A 2-Point calibration must be performed (and passed) for the instrument to function correctly. Before
initiating a calibration sequence, rinse the two standard solution containers with high-purity (DI) water
and fill them with fresh sodium standard solutions. This establishes the slope of the calibration curve.
During a 2-Pt calibration the solenoid valve is energized first and Low (100ppb) standard solution flows
through the flow cell. Once analyzer finishes measuring the Low standard solution, the solenoid valve is
deactivated and the analyzer prompts the user to connect calibration tubing to High (1000ppb) sodium
standard. Once High Sodium Standard bottle is connected the user must press ENTER and the solenoid is
again activated thus allowing High Sodium Standard on to flow through the flowcell. The analyzer
