Metrohm 761 Compact IC User Manual

Page 39

2.6 High-pressure pump

761 Compact IC

2.6.4

Deaerating the pump and rinsing the pulsation dampener

The first time that it is started up the high-pressure pump must be

deaerated. Proceed as follows:

1 Prepare for deaeration

•

Open the rotary knob on purge valve 39 by approx. ½ turn in

the counterclockwise direction (see Fig. 3 and Fig. 4).

•

Remove the plastic stopper from connection 8 on the front

panel of 761 Compact IC (see Fig. 1).

•

Push 6.2816.020 Syringe (without needle) into connection 8

until the stop is reached.

2 Open and connect system

•

Start the «761 Compact IC» PC program, if it has not been

already been started (see section 2.5.3).

•

Select

File / Open / System

in the main window. Open either the

subfolder

Non-suppressed

(for 2.761.0010 Compact IC without

suppressor) or the subfolder

Suppressed

(for 2.761.0020

Compact IC with suppressor). Select the system file

n-01.smt

s-01.smt

and click on

. The corresponding system

window is opened:

•

Select the

Connect to workplace

item of the

Control

menu in this

window.

3 Set flow rate to 2 mL/min

•

Double-click the 761 icon in the system window to open the

window for manual control of the 761 Compact IC (see be-

low).

•

Set the flow rate to

2 mL/min

in the

Flow

field.

•

Click to

to send this value to the 761 Compact

IC.