5
Routine and Preventive Maintenance
Maintaining the Source Block Assembly
86
Surveyor MSQ Plus Hardware Manual
Thermo Scientific
Cleaning the RF/dc Prefilter
to determine the frequency at which you need to clean the RF/dc prefilter.
Y
To clean the RF/dc prefilter
1. Support the quadrupole as you unscrew the hexapole screws at the base of the
RF/dc prefilter to disconnect it from the source block. See
Figure 68.
Source block assembly with the three screws connecting the RF/dc prefilter to the
source block
Table 5.
Cleaning schedule for RF/dc prefilter
Sample/Solvent Type
Cleaning Frequency
Pure samples and solvents
6 months
Standard samples
3 to 6 months
Complex matrices
(for example, crude plasma and urine)
1 to 4 weeks with operation of cone wash
Non-volatile buffer
Weekly with operation of cone wash
IMPORTANT
You must wear non-powdered gloves to handle the quadrupole.
IMPORTANT
The hexapole screws shown in
have slotted heads. Because
these screws should be hand-tightened only, the slots have been removed from the
latest version.
Three hexapole screws