Waters 2489, Operator'S Manual

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3-26 Preparing the Detector
Using Help
The detector has limited context-sensitive help. When you press ? (Shift
HOME) from a point in the program that has a Help screen associated with it,
the appropriate screen appears.
Help screen
To exit the Help screen, press Enter. If help is not available for the function
you are working on, pressing ? gets no response.
Operating the detector
Overview of detector operation
Tip:
If you are operating the detector under the control of an external system,
you can program any parameters not controlled by the external data system at
the front panel of the detector before the external system takes control.
Recommendation: To prevent reabsorption of dissolved oxygen, run the
solvent degasser continuously when operating the detector at wavelengths
less than 230 nm.
Requirement:
To maintain optimum system performance, be sure to replace
the front left panel cover before resuming normal operation of the detector.
Operating modes
You can use the detector in either single or dual wavelength mode over a
range of 190 to 700 nm. The detector defaults to the mode of operation when
the instrument was last powered-off.
Enter the desired wavelength
for detection on channel A.
Range: between 190 and 700.