Testing the detector for noise and drift

A dirty flow cell or a flow cell with bubbles can cause excessive noise and drift.

You can run a noise and drift diagnostic on the detector from the system touchscreen.

1. To run the noise and drift diagnostic from the touchscreen :
   1. Tap HEALTH > Troubleshoot.
   2. Tap the detector icon .
   3. Tap Noise and Drift Diagnostic, follow the on-screen prompts, and then tap START to begin the test.
      The screen reads Noise and Drift Test Completed and displays the test results.
   4. Tap DONE.
2. To run the noise and drift diagnostic from the console (traditional mode) :
   1. Click Workflows, click the left-hand side of the Noise and Drift Diagnostic card, and click Start. Follow the on-screen prompts and click Start Test to complete the diagnostic.
      The screen displays results and conditions.
   2. Click Done.
3. To run the noise and drift diagnostic from the console (express mode) :
   1. Click Workflows, and then click the play button on the right-hand side of the Noise and Drift Diagnostic card. The summary page appears showing the last selected settings (or default settings upon first system startup).
   2. Optionally, click Cancel to exit the workflow before it begins, or click Back to adjust the workflow settings. After a ten-second countdown, the workflow runs automatically.
      The screen displays results and conditions.
   3. Click Done.