June 11, 2015, 715004752 Rev. A
Page 116
Figure 5–3:
Sample and reference energy diagnostic test
To use the sample and reference energy diagnostic test:
1. Press DIAG, and then press 2.
2. Change the wavelength, if necessary.
3. Press Enter.
Result:
When the new wavelength shifts to the left, the corresponding sample
and reference energies appear.
4. If you are operating the detector in dual-wavelength mode, press the A/B key to
view sample and reference energy on the other wavelength.
5.2.2.2
Using the input and output diagnostic tests
You use the input and output diagnostic tests to
•
display and reset the autozero offsets;
•
fix (set) absorbance;
•
fix (set) the voltage on the 2-V output;
•
monitor contact closures and toggle event switches;
•
generate test peaks;
•
override the optical filter.
To perform any of the input and output diagnostic tests, press DIAG, and then press
3, for Input & output. A choice list appears.
Figure 5–4:
Input & output diagnostic test choice list
5.2.2.3
Displaying auto-zero offsets
From the Input & Output choice list, press 1 (Auto-zero offsets). This diagnostic test
also allows you to display and reset the offset to zero on both channels by pressing
Cancel (Shift 0).
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