GE Sievers 900 Series - Scheduling Autoreagent Adjustments in On-Line Mode; Setting Manual Flow Rates

GE Analytical Instruments ©2009 98 of 236 DLM 90488-01 Rev. A
Scheduling Autoreagent Adjustments in On-Line Mode
If you operate in On-Line mode and use the Autoreagent feature, the Schedule Reagent value
determines how often the Analyzer repeats the preliminary measurement. Set this value by
following these steps:
1. Select the Setup tab. Make sure On-Line mode is selected.
2. Press the Configure button. Make sure the Reagent button is set to Auto.
3. Press the Schedule Reagent button. A number pad displays on the right side of the screen.
Enter a number to specify how often the Analyzer calculates the automatic reagent values;
the unit of measure for the value entered here is hours.
4. Press Enter to continue.
Setting Manual Flow Rates
Manually set reagent flow rates by following these steps:
1. Select the Setup tab.
2. Press the Configure Mode button.
3. Make sure the Reagent button is set to Manual.
4. Press the Acid button and use the keypad to enter a value. Press the Enter button to save
the value, or press Cancel to retain the current setting without making any changes.
5. Press the Oxidizer button and use the keypad to enter a value. Press the Enter button to
save the value, or press Cancel to retain the current setting without making any changes.
6. Press the Menu button to return to the main Setup screen.
Table 5: Recommended Oxidizer Flow Rates
TOC Concentration Oxidizer Flow Rate
25 - 50 ppm 2.8 - 13.5 µL/min
10 - 25 ppm 1.4 - 7.5 µL/min
5 - 10 ppm 0.7 - 2.8 µL/min
1 - 5 ppm 0.7 - 1.4 µL/min
<1 ppm 0.0 - 0.7 µL/min