Metrohm 828 IC Dual Suppressor - Manual (Page 40)

4 Troubleshooting - Problems
828 IC Dual Suppressor/ 8.828.1003 Instructions for Use
32
4.3 Instrument problems
Problem Cause Remedy
LED "Power" 1 does not
light up / no LED lights up • Remote switch 15 switched to
ON despite manual operation.
• Mains cable not connected.
• Fuse blown.
• Electronics fault.
• Switch off remote switch 15 = OFF.
• Connect the IC Dual Suppressor to the
mains supply.
• Replace fuse, see Section 2.3.2
• Contact Metrohm Service.
No flow at "Flow Anode" 9
or "Flow Cathode" 10 • Blockage in flow path. • See next box but one.
High pressure in system • Pressure screws tightened up
too much.
• Blockage in flow path.
• Loosen pressure screws a little or replace
connection.
• See next box.
Blockage in flow path • A capillary is blocked.
• The suppressor cell is blocked.
• Contact Metrohm Service; it may be
necessary to replace the suppressor cell
as described in Section 5.5.2.
Liquid escapes from drain
20 • Leak inside the instrument. • Replace leaking connections, if the
suppressor cell is leaking replace it as
described in Section 5.5.2.
LED "Vacuum" 5 is red • Leak in the vacuum chamber.
• Vacuum pump not working
properly.
• Contact Metrohm Service.
• Contact Metrohm Service.
LED "Current" 4 is not
green • The pressure sensor (page
22) is not switching the
electrolysis current on.
• Check whether the high pressure pump is
running and that the set flow rate is
correct, see Section 3.1.
• Check for leaks in the liquid connections
and replace the connections if necessary.
LED "Voltage" 3 is red • Suppressor cell not installed
correctly.
• The suppressor cell is
exhausted.
• The suppressor cell is faulty.
• Install the suppressor as described in
Section 5.5.2.
• Regenerate the cell, proceed as
described in Section 5.5.1.
• Exchange the suppressor cell as
described in Section 5.5.2.