3 system functions – Metrohm 761 Compact IC User Manual

Page 89

4.3 Systems

761 Compact IC

SYSTEM / System / Save

Save the current system settings in a system file (

*.smt

) in the

Systems

directory.

SYSTEM / System / Close

Disconnect the selected system (if it is connected) and close the sys-

tem window.

4.3.3 System

functions

Connect and disconnect system

To make possible manual control of the instrument and start of deter-

minations the selected system must be connected to the PC. Only one

system can be connected at the same time. Systems are connected

and disconnected as follows:

SYSTEM / Control / Connect to workplace

Connect selected system to the COM port of the PC. If the system is

connected, the two buttons

and

appear on the 761 icon

in the system window for manual control of the injection valve (see sec-

tion 4.3.7).

At the same time, the

icon appears on the tool bar. If this icon is

clicked, the

SYSTEM

window is always displayed in front of all other win-

dows.

SYSTEM / Control / Disconnect from workplace

Disconnect selected system from the COM port of the PC. If the system

is disconnected, the two buttons

and

disappear on the

761 icon in the system window. Manual control is not available for this

system any more, but all other system settings can be modified and

saved.

Start/stop hardware and record baseline

SYSTEM / Control / Startup hardware (Measure Baseline)

Starting the hardware at the 761 Compact IC includes sending of

Sys-

tem startup values

, starting of the high-pressure pump and (if present)

starting of the peristaltic pump.
At the same time, the recording of the measurement signal using the

method of the connected system is started. Independently of the set

chromatogram

Duration

, the measurement signal is recorded until the

data acquisition is stopped with

SYSTEM / Control / Stop data acquisition

a new determination is started. Alternatively the baseline recording can

be stopped by clicking the icon of the chromatogram window. In

this case the user is asked if the recorded baseline should be saved or

not.