Metrohm 790 Personal IC - Manual (Page 63)

3 Operating tutorial
790 Personal IC
54
6 Start determination
⇒ Click on in the system window or select Start determina-
tion
of the
Control
menu. A chromatogram window opens
where the baseline is recorded continuously. The status bar
of this window shows the message Measure(Baseline) , beside
this running time, analysis time, absolute conductivity and
number of measuring points per second are displayed. The
message Waiting for INJECT [790COM#] appears in the SYSTEM
STATE window
7 Enter information for determination
⇒ Enter the desired information concerning the sample in the
automatically opened Edit sample description window. Set Cali-
bration level to 0 and confirm with .
8 Condition system
⇒ Let the system run for several minutes. If the system has
already been conditioned then a stable conductivity value of
approx. 700 µS/cm will be obtained after a few minutes.
⇒ Double-click the chromatogram or select View all of the View
menu. The sensitivity is set automatically so that all measur-
ing points are visible.
This function is only available if the integration has been
started. In the present example the integration only starts
after a delay period Delay = 2.2 min .
⇒ Select the desired sensitivity using the cursor keys <Ï> or
<Ð>. In the chromatogram window the following display is
seen, for example: