GE Analytical Instruments ©2010 95 of 226 DLM 74001-04 Rev. A
Chapter 4: Basic Analyzer Operation
run every week starting one week from the date you specify. For example, if you enter 14, it will run
every two weeks.
6. Use the date and time buttons to specify the start date and time for the first TOC Autozero.
When two consecutive negative measurements occur, the Analyzer will automatically perform a TOC
Autozero and then returns to analysis. If two consecutive negative measurements occur a second time,
the Analyzer will again automatically perform a TOC Autozero. If two consecutive measurements occur
a third time, the Analyzer issues Warning 12, TOC Autozero Failed.
7. Press Back when you are done.
Draining the iOS System
At times you may need to drain the iOS System or the Super iOS System (depending on the configuration of your
Analyzer).
1. Select the Maintenance tab.
2. Press the Advanced button.
3. Press the Drain iOS button.
4. Follow the prompts on-screen.
You will need to stop sample flow to the Analyzer before the iOS System can drain properly.
Activating Additional Features
If you purchased a 500 RL TOC Analyzer with a Sample Inlet Block, it is possible to activate additional features
available by default on other 500 RL configurations. If you purchased a feature upgrade, follow these steps to
activate the feature:
1. Insert the USB flash drive containing the feature activation into the Analyzer’s USB port.
1. Press the Menu button, select the Maintenance tab, press the Advanced button, and then press the
Advanced Setup button.
2. Press the Activate Options button.
3. Press the OK button and wait for the Analyzer to detect the USB flash drive.
4. Press the Activate button to activate the new feature.
Note:
If the Analyzer is not powered on when a TOC Autozero is programmed to occur, the
scheduled TOC Autozero is skipped. If the composition of the water is changing too
rapidly at the time the TOC Autozero is scheduled, the TOC Autozero will be stopped.
In both cases, the next TOC Autozero will occur at its regularly programmed time.
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