B-12
i. Derate maximum operating temperature -1.98° F per 1,000 feet over 7,500 feet
(-1.1° C per 305 meters above 2,286 meters)
Table B-19. Expansion Cabinets - Environmental Specifications.
Description Specification
Temperature Requirements:
Recommended operating temperature 20° to 25° C (68.0° to 77.0° F)
Operating temperature range 5° to 40° C (41° to 104° F)
Maximum Operating Rate of Change 20° C (36° F) per hour
Non-Operating (Storage) Temperature Range -40° to 70° C (- 40° to 158° F)
Humidity Requirements:
Recommended Operating Humidity 40% to 60% Relative Humidity
Operating Humidity 15% to 80% Relative Humidity at 40° C (104° F)
Non-Operating (storage) Humidity 90% Relative Humidity at 65° C (149° F)
Heat Dissipation: 360 Watts (Maximum) (1227 BTU/hour)
Altitude Requirements:
Maximum Operating 3,000.0 meters (9842.5 feet)
i
Maximum non-operating 4,572 meters (>15,000 feet)
Vibration Requirements:
Operating Random (5-500Hz) Approx 0.21 G rms
Sinusoidal Sweep Survival (5-500Hz) 0.5 g (0 peak)
Random survival (5-500Hz) Approx 2.09 G rms
Shock Requirements:
End Use Handling 10.20 cm (4.0 inch) Free-fall Drop
Transportation 30 g trapezoidal
(Delta velocity of 368.0 cm/sec)
Acoustic Requirements:
Sound Power 4.2 Bels (A-Weighted)
Bystander sound pressure (L
p
A) 42 dB (A-Weighted)
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