Sample Tube Removal - Thermo Scientific Prima PRO User Manual

Sample Tube
Thermo Fisher Scientific
Note:
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Prize out and inspect the seal and the sealing surface of the main
shaft as for the sample tube seal.
Replace any worn or damaged parts.
Reassembly is the reverse of disassembly.
The sample tube connects to the rotating sample arm and conducts
Removal
the selected sample down the main shaft axis out of the sampler
assembly and on to a connection point in the instrument enclosure. If
any contamination was noted in other parts of the inlet while
performing the above procedures, it is recommended that the sample
tube is also removed for inspection and / or cleaning.
In the event that the differential pressure sensor has to be replaced,
the sample tube will need to be removed.
There are two possible orientations for the shaft seal either
facing in or out depending on application.
If a plain black surface is revealed then the seal is configured
for negative pressure applications (typically Sentinel PRO
applications).
If the lips of the seal and its internal spring can be seen, the
seal is configured for positive pressure applications (most
Prima PRO applications).
If seals are removed and or replaced ensure the seals are
refitted in the correct orientation for the application
If a change of application is anticipated, adding a sample
pump to a Prima PRO configuration for example, consult the
factory before changing the seal orientation.
Prima PRO & Sentinel PRO Mass Spectrometers User Guide
Technical Description: Inlet
Rapid Multi-Stream Sampler
C-19