Metrohm 761 Compact IC - Manual (Page 56)

2 Installation
761 Compact IC
46
3 Start system
• Make sure, that the aspirating tubing 63 for the high-pressure
pump is immersed in the eluent.
• Select
Startup hardware (Measure baseline)
from the
Control
menu in the system window. The high-pressure pump is
started, at the same time, a chromatogram window is opened
where the baseline is recorded continuously.
4 Check for leaks
• Check all capillaries and their connections between the high-
pressure pump and the detector block for escaping liquid. If
eluent escapes anywhere, the appropriate compression fitting
must be tightened further or changed.
5 Condition system
• Rinse the system with eluent until the desired stability of the
baseline is reached (normally 30 … 60 min; if the eluent is
changed, the establishment of the ion exchanger equilibrium
on the separating column can take longer).
• The instrument is now ready for sample determinations using
the selected system.
2.9.2 Putting into operation with suppressor
Before sample solutions can be injected at the 2.761.0020 Compact
IC (with suppressor), the entire system must be tested for leaks and
then conditioned with eluent until the baseline is stable. At the same
time, the suppressor module must be conditioned. Proceed as follows:
1 Open and connect system "Prep-MSM*.smt"
• Start the «761 Compact IC» PC program, if it has not already
been started (see section 2.5.3).
• Select File / Open / System in the main window. Open the folder
Suppressed and select the system file Prep-MSM1.smt (for an-
ion column Dual 1) or Prep-MSM2.smt (for anion column Dual
2) suited for the inserted separating column. Click on
.
• Select the Connect to workplace item from the Control menu of
the system window.
2 Open control window
• Double-click the 761 icon in the system window. The control
window for manual control of the 761 Compact IC appears,
which indicates conductivity, pressure and current system