Waters 2489, Operator'S Manual

Page: 180 / 234

5-18 Error Messages, Diagnostic Tests, and Troubleshooting
The amplitude of the test peaks is affected by your choice of filter time
constant.
This is a sticky diagnostic test. When this routine is selected, the choice
list changes to read “Disable test peaks.”
2. Press 1 (Disable test peaks) from the Other diagnostics choice list to
turn off this diagnostic test.
To override the optical filter:
1. From the Other diagnostics choice list, press 2 (Optical filter override) to
manually override the detector’s automatic filter choice. The Optical
Filter Override diagnostic display appears.
Optical Filter Override diagnostic display
2. Press Enter to display the following filter choice list.
The detector normally operates with the filter in the Automatic position.
This is a sticky diagnostic test.
3. Press the number corresponding to your filter choice or leave the default
filter choice (Automatic) on.
This is a sticky diagnostic test.
4. To turn off this diagnostic test, press DIAG and then press 1, or select
Automatic from the choice list.
Automatic 1
Second Order 2
None 3
Erbium 4
Shutter 5