Cleaning The Rf/Dc Prefilter - Thermo Scientific Surveyor MSQ Plus Hardware Manual

5
Routine and Preventive Maintenance
Maintaining the Source Block Assembly

Cleaning the RF/dc Prefilter

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