Metrohm 833 IC Liquid Handling Unit - Manual (Page 91)

9.2 Care and maintenance
833 IC Liquid Handling Unit / Instructions for Use 8.833.1003
83
3 Connect suppressor module/sample preparation
module to IC system
• Reconnect the module to the IC system. If there are still
capacity problems then the actuator rotor must be replaced
(see Section 9.2.6.3).
9.2.6.2 Cleaning the actuator module
Cleaning the suppressor module or sample preparation module may be
necessary in the following cases (see also Section 9.1):
• Irreparable blockage of the suppressor
module/sample preparation module
(solutions can no longer be transported by the
suppressor)
• Irreparable blockage of the actuator of the particular
module
(actuator can no longer be switched to next position)
Clean the connection piece and actuator rotor as follows (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 inlets and outlets
• Connect each of the 6 pieces of capillary tubing attached to
connection piece 86 to the pump in sequence and pump
ultrapure water through them.
• Check whether any liquid is escaping from connection piece
86. If one of the inlets or outlets remains blocked then the
connection piece must be replaced.
Order number 6.2832.010 for suppressor module
6.2835.010 for sample preparation module
4 Clean actuator rotor
• Clean the sealing surface of actuator rotor 87 using a lint-free
cloth and ethanol.