User Management; Blank Correction - GE Sievers InnovOx Operation And Maintenance Manual

Chapter 6: Analyzer Operation

User Management

You can enable or disable a user management feature on the InnovOx. This feature allows you to configure one
Administrative User (Admin) and up to three unique Users. The Admin will have access to all features throughout
the firmware. The User will only have access to start, stop, obtain result reports, view protocols, and certain
Maintenance tab options, such as Flush Reagents and Diagnostics.
1. Select the Maintenance tab.
2. Press the User Management button.
3. Press the User Management Enabled/Disabled button and select desired setting.
4. If Enabled, you will be able to press the Admin button.
5. Select User Name to enter a unique user ID and then select Enter.
6. Select Password to enter a unique user password and then select Enter.
7. Repeat steps 5 and 6 to customize Users 1 through 3.
8. Write down your passwords and store them in a safe place for future reference.
N :
If you have forgotten your password, you will need to contact GE to help unlock your Analyzer with
OTE
the keycode that appears on the Login screen.

Blank Correction

The reagents and dilution water contain organic contaminants that are included in the TC, TOC and NPOC
measurements. Those contaminants make a significant contribution to the TC, TOC and NPOC measurements
when the samples contain less than about 10 ppm of TOC or NPOC. For the greatest accuracy, the TOC or NPOC
measurements should be corrected for those contaminants (the "blank").
There are two ways of making this correction. If all of the sample streams are to be measured using the same
Acid and Oxidizer settings used in the calibration, then the simplest way is to calibrate the Analyzer using
Reagent Water as the first calibration point. The water must be low-TOC (less than 0.1 ppm), reagent-grade
water. Selecting Reagent Water as the first point in a calibration automatically adjusts the calibration to correct
subsequent measurements for the TOC in the reagents and dilution water. For that reason, the automated blank
correction feature (described below) is inactivated.
If you analyze the samples with different Acid and Oxidizer settings other then those used in the calibration,
consider using the automated blank correction feature. This feature gives the advantage of measuring the
individual organic carbon concentrations in the acid, oxidizer, and dilution water. Therefore, the Analyzer can
calculate the carbon contributions made by the acid, oxidizer, and dilution water even when the analysis
settings change.
The Analyzer must be rinsed down before starting either procedure.
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