Dell OptiPlex 3240 All-In-One Owner's Manual

Temperature	Specifications
Operating	0°C to 35°C (50°F to 95°F)
Storage	–40°C to 65°C (–40°F to 149°F)

Relative humidity (maximum)	Specifications
Operating	20 % to 80 % (non condensing)
Storage	20 % to 80 % (non condensing)

Maximum vibration	Specifications
Operating	0.26 GRMS at 5 to 350 Hz
Storage	2.2 GRMS at 5 to 500 Hz

Maximum shock	Specifications
Operating	40 G
Storage	45 G

Altitude (maximum)	Specifications
Operating	0 m to 5000 m (0 ft to 16,404 ft)
Non-operating	0 m to 5000 m (0 ft to 16,404 ft)

Airborne contaminant level

G2 or lower as defined by ANSI/ISA-S71.04-1985