Metrohm 833 IC Liquid Handling Unit User Manual

Page 42

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5 833 IC Liquid Handling Suppressor Unit

833 IC Liquid Handling Unit / Instructions for Use 8.833.1003

34

Immerse the other end of the aspiration tubing in a container

with regeneration solution (normally 50 mmol/L H

2

SO

4

) and fix

it in position.

Pull outlet capillary 29 (marked with “Waste”) through one of

the openings 41 or 43 in the rear panel of the 820 IC

Separation Center.

Lead outlet capillary 29 into a sufficiently large waste bottle

and fix it in position.

10 Suppressor connection 3: H2O

Pull inlet capillary 31 (marked with “H

2

O”) at suppressor

connection 25 (see Fig. 9) through one of the openings 18 in

the rear panel of the 820 IC Separation Center.

Fasten inlet capillary 31 (23 in Fig. 7) to filter unit PEEK 22

(6.2821.120) of the second pump tubing using a

compression fitting 17 (6.2744.010), see Fig. 7.

Mount aspiration tubing: cut a piece of PTFE tubing 16

(6.1803.020) to the required length.

Attach a PEEK compression fitting 17 (6.2744.010) to one

end of the PTFE tubing 16 and screw this on to coupling 18.

Immerse the other end of the aspiration tubing in a container

with rinsing solution (normally dist. H

2

O) and fix it in position.

Pull outlet capillary 30 (marked with “Waste”) through one of

the openings 41 or 43 in the rear panel of the 820 IC

Separation Center.

Lead outlet capillary 30 into a sufficiently large waste bottle

and fix it in position.

11 Start up 833 IC Liquid Handling Suppressor Unit

Switch on 833 Pump Unit with mains switch 8.

Set the contact pressure for both cassettes: press contact

lever 5 until the solutions are just aspirated. Then press the

contact lever up by 1 further click to achieve the optimum

contact pressure.

Before switching the suppressor to the next position for the

first time (see Section 5.2) rinse the three suppressor units

with solution for 5 minutes.

Check all the tubing from the storage containers to the 833 IC

Liquid Handling Unit and the suppressor module through to

the waste bottles for leaks. If any liquid should be leaking

then the corresponding connection must be tightened up or

replaced.


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