UltiMate 3000 Series:
SD, RS, and BM Pumps
Page
24
Operating
Instructions
2.11 Vacuum Degasser
Usually, a vacuum degasser is used to remove gas bubbles trapped in the solvents. LPG-
3400 pumps have an inbuilt vacuum degasser. For all other pumps, consider connecting an
appropriate SRD-3x00 Solvent Rack (
page 13) or another external vacuum degasser.
Observe the general precaution for degasser operation (
page 88).
Tip:
Normal phase eluents usually show only a low concentration of dissolved
gases. Therefore, it is normally not required to use a degasser with these
eluents
If the UltiMate 3000 system includes an UltiMate 3000 series autosampler, you should
degas also the wash liquid on a continuous basis. The procedure how to prepare and install
the wash liquid lines is similar to the steps for the solvent supply (
information, see the
Autosampler Manual
.
2.12 Pulse Damper
ISO-3100BM pumps have an integrated pulse damper that reduces the already low
pulsation of the pump even further (
Technical Information, page 187).
The pulse damper consists of a reservoir, filled with isopropanol, and a membrane that is
placed in the mobile phase line. The damper diminishes pressure pulsations that would
otherwise interfere, for example, with sensitive electrochemical detection.
Thus, an ISO-3100BM is the ideal choice for electrochemical detection applications, but also
for applications for which lowest pulsation is one of the main requirements.
When operating an ISO-3100BM, also observe the general operating precautions on page 90.
Summary of Contents for UltiMate 3000 Series
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