Metrohm 930 Compact IC Flex Oven/SeS/Deg User Manual download pdf (Page 98)

6.1

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￭￭￭￭￭￭￭￭

930 Compact IC Flex Oven/SeS/Deg (2.930.2460)

6 Troubleshooting

Problem Cause Remedy

Marked drop in

pressure.

Leak in the system. Check all capillary connections and seal leaks,

if necessary (see Chapter 3.2, page 13).

The baseline has a

large amount of

noise.

The eluent is not suffi-

ciently degassed.

Ensure that the connectors for the eluent

degasser are firmly connected (see Chapter

5.6, page 59).

The eluent path has a leak. Check the eluent path and fix the leak.

High-pressure pump – Con-

taminated pump valves.

Clean pump valves (see Chapter 5.8, page 61).

The eluent path is blocked. Check the eluent path and fix the blockage.

High-pressure pump –

Defective piston seals.

Replace the piston seals (see Chapter 5.8,

page 61).

MCS – The

adsorber cartridge is

depleted.

Replace the CO

adsorber cartridge (see Chap-

ter 5.13.1, page 85).

The pulsation absorber is

not connected or is defec-

tive.

Connect (see Chapter 3.10, page 25) or

replace the pulsation absorber.

MCS – The vacuum pump is

defective.

Contact Metrohm Service.

The baseline is drift-

ing.

Thermal equilibrium is not

yet attained.

Condition (see Chapter 3.21, page 51) the

instrument with the column oven (see Chapter

3.5, page 19) switched on.

Leak in the system. Check all capillary connections and seal leaks,

if necessary (see Chapter 3.2, page 13).

The organic solvent in the

eluent is evaporating.

￭ Check the eluent bottle cap (see Chapter

3.6, page 20).

￭ Constantly stir the eluent.

The pressure in the

system markedly

increases.

The inline filter

(6.2821.120) is blocked.

Replace the filter (6.2821.130) .

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