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Startup & Shutdown
Shutdown
Emergency
Shutdown
7-12
Prima PRO & Sentinel PRO Mass Spectrometers User Guide
Following is the emergency shutdown procedure.
1. Switch off power, either at the Mains Electrical ISOLATOR (see
"Startup"
earlier in this chapter) or at an external power isolation
device (the latter is equivalent to a power cut or, in the case of an
Ex system, the purge controller switching off the power).
2. The system heaters will now be de-energized and gas handling
parts of the system will be cooling down.
All sample gas flows should be switched off as soon as possible.
Where there is a risk that residual sample gases will begin to
condense, the inlet system should be purged with a suitable inert
gas such as nitrogen as soon as possible.
Thermo Fisher Scientific
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