Download IS25 Isocratic Pump Operator`s Manual

IS25 Isocratic Pump
By default, the degas pump turns on for 2 minutes at power-up. Thereafter, the
degas pump turns on for 30 seconds at 10-minute intervals. To reset the cycle time
and duration, go to the DEGAS OPTIONS screen (see Section C.1.4).
NOTE The DEGAS OPTIONS screen cannot be selected unless
the vacuum degas assembly is installed. If necessary, go
to the PUMP OPTIONS screen (see Section C.1.6) and
check the DEGAS PUMP OPTION field; if the IS25
contains a vacuum degas assembly, the field indicates
YES.
To check the vacuum chamber pressure, go to the DEGAS PUMP CALIBRATION
AND STATUS screen (see Section C.3.3).
2.5
Eluent Reservoirs
NOTE Dionex strongly recommends vacuum degassing and
filtering all eluents to help prevent bubbles,
contaminants, and particles from passing through the
system. Filtering eluents also helps reduce baseline noise
and ensure system stability.
NOTE Although the IS25 does not require pressurized
reservoirs, Dionex recommends pressurizing the
reservoirs if eluents are manually degassed (see
Section 3.1.1) or if eluents are sensitive to carbonate
(NaOH) contamination. For more details, see the
Pressurizable
Reservoir
Installation
Instructions
(Document No. 034581).
The following pressurizable reservoirs are available from Dionex:
2-16
•
1-liter glass reservoir with shatterproof plastic coating (P/N 044126)
•
2-liter glass reservoir with shatterproof plastic coating (P/N 044127)
•
1-liter plastic reservoir (P/N 044128)
•
2-liter plastic reservoir (P/N 044129)
Doc. 031614-03 10/03