The AutoSuppression recycle mode uses the suppressed conductivity cell effluent as the source of water for the regenerant.

NOTE

AutoSuppression recycle mode is the recommended method of operation for the Dionex DRS 600 and Dionex AERS 500 carbonate suppressors. The Dionex ERS 500e is also compatible with this mode.

The advantage of this mode of operation is simplicity and ease of use. This mode reliably provides AutoSuppression for most suppressed conductivity applications using solvent-free eluents. For solvents that are not easily oxidized, such as isopropyl alcohol, the AutoSuppression recycle mode is preferred. As the eluent passes through the suppressor’s eluent channel it is converted to a weakly ionized form.

After detection, the cell effluent can be routed back to the regenerant channel to provide the water required for the electrolysis reactions. The amount of water flowing through the regenerant chambers is therefore limited to the eluent flow rate.

See Operation for complete operating instructions.

NOTE

The AutoSuppression Recycle Mode is not compatible with eluents containing Borate, or Organic Solvents that tend to oxidize easily, such as methanol or acetonitrile.