Connecting The External Column Heaters; Polarity Options - Waters 2410 Operator's Manual

• When Polarity 2 is closed (connected to an instrument), Polarity 1 determines peak polarity.
Polarity 1 open (disconnected) generates negative polarity. Polarity 1 closed (connected)
generates positive polarity.
Table 3-13 summarizes the polarity options.
Table 3-13 Polarity Options
Polarity 2
Open
Open
Closed
Closed

3.4 Connecting the External Column Heaters

The Waters 2410 Differential Refractometer can control up to two optional external column heaters
through the EXT 1 and EXT 2 ports l on the rear panel of the detector (Figure 3-16). The ports are
standard 9-pin DIN connectors.
Polarity 1 Recorder Polarity
Open No Effect
Closed No Effect
Open Negative (Inverted)
Closed Unchanged

Connecting the External Column Heaters 3-19

3