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GE Analytical Instruments ©2010
165 of 226
DLM 74001-04 Rev. A
Chapter 8: Troubleshooting
4. Wait for the TOC Autozero to complete before proceeding.
TOC Offset
At extremely low TOC concentrations, very small changes in water system conditions may make it difficult to
utilize the TOC autozero procedure for the purposes of achieving instrument-to-instrument agreement
consistent with the stated analyzer specifications. If the TOC autozero procedure does not yield acceptable
agreement between multiple instruments, you may utilize the manual TOC zero offset adjustment to adjust the
TOC reading to match a known accurate reference value.
NOTE: adjusting the TOC offset value manually will affect
all TOC readings by an amount equal to the amount of
adjustment. This procedure should only be used when all other recommended methods of calibration and
autozero have failed to allow multiple instruments to match within the stated accuracy specifications of the
analyzer.
To set the TOC Offset, follow these steps:
1. If the Analyzer is taking measurements, press the
Stop Analysis
button.
2. Press the
Menu
button, select the
Maintenance
tab and press the
Cal/Ver/Validate
button.
3. Press the
Program Autozero
button.
4. Press the
Offset
button.
5. Use the number keypad to enter a positive or negative number for the offset.
6. Press the
Enter
button.
Problems Changing the Program Language
When you have multiple languages loaded on your Analyzer, if you change the program language out of your
native language, it is possible that you will not be able to switch back easily since you cannot read the program
menus. If this happens, follow these steps to navigate to the correct menu to change the program language
back to your language:
1. Make sure the
Menu
screen is displayed. If the
Main
screen is displayed (it shows the chart of
measurements), press the button at the bottom left corner of the screen.
2. Select the fourth tab from the left (this is the
Maintenance
tab).
3. Counting from the top, press the fourth button in the left column (
Advanced
).
4. Press the fourth button in the left column (
Advanced Setup
).
5. Press the fifth button in the left column (
Select Language
).
Содержание Sievers 500 RL
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Страница 177: ...Appendix A GE Analytical Instruments 2010 177 of 186 DLM 74001 04 Rev A Figure 51 Left Side Analyzer Dimensions ...
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Страница 185: ...Notes GE Analytical Instruments 2010 185 of 186 DLM 74001 04 Rev A 186 ...
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