Metrohm 790 Personal IC User Manual

Page 53

2 Installation

790 Personal IC

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 fit-

ting 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 (anion system)

Before sample solutions can be injected at the

2.790.0020 Personal

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 system "

Prep MSM.smt"

• Start the «790 Personal 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

790com1

790com2

and select the system file

Prep MSM.smt

Click on

2 Open control window

• Double-click the 790 icon in the system window. The control

window for manual control of the 790 Personal IC appears,

which indicates conductivity, pressure and current system

parameters.