Waters 2489, Operator'S Manual

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2-18 Installing the Detector
Connecting the detector to a separations module
You can connect the detector to the separations module, when it is not under
the control of the Empower software, to perform the following functions:
• Auto Zero
• Chart Mark on Inject
Generating Auto Zero
To generate the Auto Zero function on the detector at the start of an injection,
make the connections summarized in the table and illustrated in the figure
below.
Before you can generate an auto zero from the separations module, you need
to configure the auto zero signal at the detector front panel. The default auto
zero signal is Low. See the discussion
“Configuring event inputs (contact
closures)” on page 3-23 for more information.
Detector connections to a separation module to generate Auto Zero
2695 Separations Module
(B Inputs and Outputs)
2489 Detector (II)
Pin 1 Inject Start
Pin 9 Auto Zero
+
Pin 2 Inject Start Pin 10 Auto Zero –