Owner manual

2 Installation

761 Compact IC

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

<Open>.

• 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