46 Making Electrical Connections to the 600 Controller
3.5.3 Connecting a Non-IEEE-488 Detector
Background
When you use a non-IEEE-488 detector or a Waters PowerLine IEEE-488 detector with
the 600 controller, you may find that certain trigger parameters are not transmitted during
the injection sequence, such as:
• Chart Mark (inject start) signal
• Auto zero signal
• Stop flow signal
• Timed lamp on/off signal
Connections
You can use the 600 controller screw terminals to transmit or receive these signals during
operation. These connections vary with the type of detector in use.
For details on making electrical connections with the detector, refer to the appropriate
detector operator’s guide.
3.5.4 Connecting a Waters 746 Data Module
When using the Waters 746 with the 600 controller, you can make additional screw
terminal connections to provide (along with the RS-232 interface connection) the
following signals:
• Inject signal (to start Channel A or B)
• Pressure signal (to monitor pump pressure on Channel B)
• Chart output signal (to monitor the selected Chart out signal on Channel B)
Note: For details on attaching the RS-232 interface to the Waters 746, refer to
Section 3.4, Making RS-232 Connections with the Waters 746 Data Module.
Connecting the Inject Signal to the Waters 746
You must connect a run start signal to the Waters 746 to instruct the device when to initiate
data collection. The Waters 746 receives the run start signal in one of two ways:
• If you use the Rheodyne 7725i manual injector, the 600 controller provides the run
start signal from the Inject terminal (Figure 3-9).
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