Setting Up the Detectors 77
Using Multiple Detectors
You may use up to three PowerLine detectors in the system at one time:
• Two UV/Vis absorbance detectors (two Waters 486 detectors, two channels of a
Waters 490E detector, or one 486 and one 490E channel) and
• One refractive index (RI) detector (Waters 410) or one conductivity detector (Waters
431/432)
Detector Considerations
Be aware of the following considerations when using a PowerLine detector:
• Det #1 and Det #2 are dedicated to the UV/Vis detectors, and Det #3 is always
dedicated to the RI or the conductivity detector.
• If the system contains both a 486 and a 490E, the IEEE-488 address of the 486 must
be less than the address of the 490E. If the 486 address is higher, the controller
assigns both detector channels to the 490E and does not recognize the 486.
• When controlling a Waters 431 or Waters 432 conductivity detector, both detectors
are recognized as a 431 by the 600 controller.
• The 486 detector (firmware revision 4.10) operating with PowerLine version 2.1 or
greater and/or ExpertEase version 3.0 or greater should have its DIP switch #7 set to
the ON position (the factory default position). This setting is required for the 486 to
be recognized by the 600 controller. Previous 486 detector firmware versions
require DIP switch #7 to be in the OFF position in order for the 600 controller to
recognize the 486 as a 484 detector.
Figure 4-17 summarizes the steps involved in using the Detector Setup screen. Use this
flowchart as a quick reference for setting the parameters on the Detector Setup screen.
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