Thermo Scientific GENESYS 10S Vis, Руководство пользователя

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Performance Verification
Stray Light
Thermo Scientific GENESYS 10S Vis User Guide 107
• Make sure the instrument is warmed up for at least 30 minutes, with the standby mode
feature turned off.
• For more troubleshooting advice contact our sales or service representative in your area or
use the information at the beginning of this document to contact us.
Stray Light
This test measures the stray light at selected wavelengths and compares the measurements
with expected values. The wavelengths and expected values are preset and cannot be changed.
Running the stray light test takes about 30 seconds.
When running the stray light test, remember:
• You need Stray Light standards designed to measure stray light at 220 nm, 340 nm and
400 nm (i.e., must have
≤
0.1 %T at the wavelength of interest).
• Position B should be empty.
• Use position #1 for the 220 nm stray light standard (SRE 220 or equivalent).
• Use position #2 for the 340 nm stray light standard (SRE 340 or equivalent).
• Use position #3 for the 400 nm stray light standard (SRE 400 or equivalent).
Running the Test
In the Stray Light screen, make sure the wavelengths and tolerances are set correctly.
Y To run the Stray Light test
1. Highlight Stray Light .
2. Press Enter .
3. Press Start Test .
The results indicate pass or fail for each wavelength.
If the test fails, follow these guidelines:
• Repeat the test twice to verify that the test is failing consistently.
• Make sure all the filters being used are specifically designed to measure stray light at the
specific wavelengths.
• Verify that the filters are placed in the correct cell positions.
• For more troubleshooting advice contact our sales or service representative in your area or
use the information at the beginning of this document to contact us.