Several fans, including those in the power supply subassemblies, provide internal cooling for the MS. Cooling air enters through the three main air intake fans on the right side of the MS. Exhaust air exits the instrument from the back ventilation slots.

To ensure proper performance of the cooling system, maintain at least 10 inches of air space between the ventilation slots on the back of the MS and the laboratory wall or other obstructions and for the air intake fans on the right side of the MS.

The only user-serviceable part of this cooling system is the air filter behind the front panel and in front of the air intake fans. For the recommended maintenance schedule, see Clean the Air Filter.

CAUTION

To ensure safety and proper cooling, always operate the MS with its cover panels in place. This is also necessary to comply with product safety and electromagnetic interference regulations.