Wavelength Calibration - Waters 2487 Dual A Operator's Manual

3.3.3 Wavelength Calibration

The 2487 Detector offers you the option of calibrating the detector manually from the
keypad. You can use the manual calibration key to recalibrate the detector at any time
during operation, or if there are any calibration errors during startup. You do not have to
reboot the detector after a successful wavelength calibration.
To calibrate the detector manually:
1. Press Calibrate (Shift
A message appears asking whether you removed the cuvette and flushed the
flow cell with a transparent (methanol or water are recommended) solvent
(Figure 3-15).
Figure 3-15 Cuvette Wavelength Calibration Message
2. Press Enter
Absorbance screen without calibrating the detector.
After you press Enter, the detector cycles through the calibration procedure and
briefly displays a series of initialization messages similar to those you saw at
startup (see
If calibration is successful, the detector beeps three times and displays the
maximum error in nanometers of the furthest calibration shift from the last
calibration
3. Press Enter
3) from the 2487 Detector keypad.
to continue the calibration cycle, or press
Section 3.1.1, Initializing the 2487
(Figure 3-16).
Figure 3-16 Calibration Successful Message
to complete calibration.
Cancel to return to the
Detector).
Operating the 2487 Detector
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