Metrohm 872 Extension Module Sample Prep - Manual (Page 32)

6.1 Problems and their solutions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
24 ￭￭￭￭￭￭￭￭ 872 Extension Modul – Sample Prep
6 Troubleshooting
6.1 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 "Setting the
flow rate", page 18).
Peristaltic pump – filter
blocked. Replacing filter (see Chapter 5.2.2.2, page 23).
Peristaltic pump – pump
tubing defective. Replace pump tubing (see Chapter 5.2.2.1,
page 22).