Waters 2489, Operator'S Manual

Page: 59 / 234

Connecting to other devices 2-27
Connecting the detector to a chart recorder
Recorder signal
The A and B terminals on the rear panel of the detector provide 2-V analog
output signals that you can use to connect the detector to a chart recorder.
To send 2-V signals from the detector to a chart recorder, use the cable
provided in the 2489 Detector Startup Kit to make the connections
summarized in the table and illustrated in the figure below.
To minimize the chance of creating a ground loop that can adversely affect
measurement, connect the shield of the cable to the chassis ground at one end
only. For connection to other data systems, a cable (part number 44000172)
can help remove the incidence of ground loops.
Tip: The detector is optimized for use with the 2-V analog output.
Connect the detector to a chart recorder using the 2-V analog connection as
shown in the following figures.
Detector connections to a chart recorder
2489 Detector
(B Inputs and Outputs) Chart Recorder
Terminal
Pin 1 Analog 1 + +
Pin 3 Ground –
Pin 4 Analog 2 + +
Pin 8 Ground –