Dell R815 manual Temperature gradation of 20C per hour

Environmental

NOTE: For additional information about environmental measurements for specific system configurations, see www.dell.com/environmental_datasheets.

Temperature
Operating	10° to 35°C (50° to 95°F) with a maximum
	temperature gradation of 10°C per hour
	NOTE: For altitudes above 2950 feet, the maximum
	operating temperature is derated 1ºF/550 ft.
Storage	–40° to 65°C (–40° to 149°F) with a maximum
	temperature gradation of 20°C per hour
Relative humidity
Operating	20% to 80% (noncondensing) with a maximum
	humidity gradation of 10% per hour
Storage	5% to 95% (noncondensing)
Maximum vibration
Operating	0.26 G at 5–350 Hz for 15 min
Storage	1.54 G at 10–250 Hz for 15 min
Maximum shock
Operating	One shock pulse in the positive z axis (one pulse
	on each side of the system) of 31 G for 2.6 ms
	in the operational orientation
Storage	Six consecutively executed shock pulses in the
	positive and negative x, y, and z axes (one pulse
	on each side of the system) of 71 G for up to 2 ms
Altitude
Operating	–16 to 3,048 m (–50 to 10,000 ft)
	NOTE: For altitudes above 2950 feet, the maximum
	operating temperature is derated 1ºF/550 ft.
Storage	–16 to 10,600 m (–50 to 35,000 ft)
Airborne Contaminant Level
Class	G2 or lower as defined by ISA-S71.04-1985

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Getting Started With Your System