NEC Express5800/T71h, User Manual

Page: 12 / 84

4
Environmental specification
Item Description
Temperature range
Operating
Non-operating
10
–
35°C (50
–
95°F)
-0
–
50°C (32
–
122°F)
Humidity (non-condensing)
Operating
Non-operating
20-80% RH
20-80% RH
Acoustic noise (sound Pressure)
Idle
Operating
Sound pressure level in idle mode on bystander
position
＜
34 dBA
Sound pressure level in operating mode on
bystander position
＜
39 dBA
* All temperature ratings shown are for sea level. An altitude derating of 1¢XC per 300 m (1.8¢XF per 1,000 ft)
to 3048 m (10,000 ft) is applicable. No direct sunlight allowed.
** Storage maximum humidity of 95% is based on a maximum temperature of 45¢XC (113¢XF). Altitude
maximum for storage corresponds to a pressure minimum of 70 Kpa.