Waters Prep Series Installation And Maintenance Manual page 30

The PrepLC controller, which Waters shipped in PowerLine configuration,
allows maximum performance and programming flexibility. The Gradient
configuration is usually used when an IEEE-based data system like MassLynx
or Empower controls the Prep system. Nevertheless new users might find the
Gradient controller configuration easier to operate initially.
PowerLine configuration
In its PowerLine configuration, the controller performs as follows:
• Interfaces with PowerLine-compatible detectors (Waters 2487 and 2414
Detectors), PowerLine autoinjectors (Waters 717plus), data systems
(MassLynx or Empower), and integrators (Waters 746 Data Module).
• Automatically sets up and controls all gradient, injection, external
event, and detector parameters directly from the keyboard.
• Uses a Method table that links time-based control tables. These include
a Gradient table, Event table, and Detector table.
The controller communicates with the PowerLine modules (autoinjector and
detectors) through the IEEE-488 interface. It communicates with the Waters
746 integrator through the RS-232 serial interface.
Operation
By specifying values for these parameters, you can set the PowerLine
controller for product-specific operation with PowerLine detectors and
autosamplers:
• Detectors
– Detector filter constant
– Autozero
– Polarity
– Absorbance units full scale (AUFS)
– UV wavelength (λ)
– Sensitivity
• Autosamplers
– Syringe draw rate
– Inject delay
– Standards (how many and how often)
1-20 Overview