Metrohm 833 IC Liquid Handling Unit - Manual (Page 93)

9.2 Care and maintenance
830 IC Interface / Gebrauchsanweisung 8.830.1001
85
8 Connect and condition suppressor module
• Reconnect suppressor module to the IC system (see Section
5.1).
• Before moving the suppressor to the next position for the first
time rinse the 3 actuator units with solution for 5 min.
Connect and condition sample preparation module
• Reconnect sample preparation module to the IC system (see
Section 6.1 and Section 6.2).
• Before moving the suppressor to the next position for the first
time rinse the 3 actuator units with solution for 5 min.
9.2.6.3 Replacing the actuator rotor
It may be necessary to replace actuator rotor 87 contained in the cation
exchanger of the suppressor module or sample preparation module in
the following cases (see also Section 9.1):
• Irreparable loss of exchanger capacity
(recognizable at suppressor by reduced phosphate
sensitivity and/or large increase in baseline)
• Irreparable blockage of the suppressor
(solutions can no longer be transported by the
suppressor)
As well as replacing actuator rotor 87 (6.2832.000 in suppressor
module, 6.2835.000 in sample preparation module), it may also be
necessary to replace connection piece 86 (6.2832.010 in suppressor
module, 6.2835.010 in sample preparation module). Exchange these
components in the following way (see Fig. 26):
1 Disconnect suppressor module/sample preparation
module from IC system
• Disconnect the inlet of the suppressor module/sample
preparation module from the column and detector outlet.
2 Dismantle actuator module
• Unscrew sleeve nut 85 from actuator holder 88.
• Pull connection piece 86 and actuator rotor 87 out of actuator
holder 88.
• Loosen connection piece 86 from actuator rotor 87.
3 Clean actuator rotor
• Clean the sealing surface of the new actuator rotor 87 using
a lint-free cloth and ethanol.