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A • Installing Pump Options
This appendix provides instructions for the following pump options:
•
Pressurizing eluent reservoirs (
)
•
Replumbing the piston seal wash system (
)
A.1
Pressurizing Eluent Reservoirs
The DP/SP does not require pressurized eluent reservoirs. However, Thermo
Fisher Scientific recommends pressurizing reservoirs with helium or nitrogen
under the following circumstances:
•
When using eluents that are sensitive to contamination.
•
When combining aqueous and nonaqueous components (for example,
water and acetonitrile). Pressurizable reservoirs allow eluents to be stored
under a specific atmosphere.
All eluent reservoirs available for use with the DP/SP can be pressurized. If
you plan to pressurize the eluent reservoirs, a regulator kit is required. The kit
is available in two versions:
•
The EO
Regulator
Kit (P/N 074422) is required when the DC is installed
as the topmost module in the system. The kit includes a pressure regulator
and gauge assembly with four outputs (for connections to four eluent
reservoirs), as well as the tubing and fittings required.
•
When the TC, Dionex VWD, or Dionex PDA is installed as the topmost
module in the system, the TC/VWD/PDA Regulator Bracket Kit
(P/N 074424) is required. The kit includes the EO
Regulator
Kit
described above, as well as a right-angle regulator bracket and mounting
hardware. After attaching the bracket to the TC or detector, you will
mount the gas regulator assembly on the bracket.
If more reservoirs are required, order a second regulator (P/N 074425).
