Metrohm 761 Compact IC User Manual

Page 57

2.9 Putting into operation

761 Compact IC

parameters.

3 Start system

•

Make sure, that the aspirating tubing 63 for the high-pressure

pump is immersed in the eluent.

•

Select

Startup determination

from the

Control

menu in the

system window. The high-pressure pump and the peristaltic

pump are started, at the same time, a chromatogram window

is opened where the baseline is recorded continuously. The

suppressor module is automatically switched to the next posi-

tion every 20 min and conditioned in this way.

4 Set contact pressure for pump tubings

•

Press contact pressure lever 49 on both tubing cartridges 48

upwards until regeneration and rinsing solution just start to be

drawn in.

•

Then press contact pressure lever 49 upwards until it clicks

once more to obtain optimal contact pressure.

5 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.