8 troubleshooting, 1 problems and their solutions, Problems and their solutions – Metrohm 872 Extension Module Liquid handling User Manual

Page 51

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8 Troubleshooting

872 Extension Module – Liquid handling

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43

8 Troubleshooting

8.1

Problems and their solutions

Problem

Cause

Remedy

Peristaltic pump –
insufficient or no
delivery rate

Peristaltic pump – contact
pressure too weak.

Correctly set contact pressure (see "Set flow
rate", page 33)
.

Peristaltic pump – filter
blocked.

Replace the filter (see Chapter 7.3.2.2, page
41)
.

Peristaltic pump – pump
tubing defective.

Replace pump tubing (see Chapter 7.3.2.1,
page 40)
.

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