Digital Equipment DECconcentrator 500, Installation Manual, Page: 79 / 98

A–2 DECconcentrator 500 Installation
A.2 Environmental Specifications
The DECconcentrator 500 is designed to operate in an open office or in an exposed
area of an industrial site. The concentrator is not designed to operate in an air plenum.
CAUTION
!
To prevent damage to electronic components, do not
exceed 50
°
C (122
°
F) ambient temperature at the air
intake of the DECconcentrator 500.
Table A–3 and Table A–4 list the environmental specifications.
NOTE
Your service agreement may require specific limits for
temperature and humidity.
Table A–3: Operating Environment Specifications
Parameter Value
Temperature
Operational (without cover)
Operational (with cover)
5
°
C (41
°
F) to 50
°
C (122
°
F) at sea level*
5
°
C (41
°
F) to 35
°
C (95
°
F) at sea level*
Non-operational
-40
°
C (-40
°
F) to 66
°
C (151
°
F)
Relative humidity 10% to 95% (noncondensing)
Wet bulb
32
°
C (90
°
F) maximum
Dew point
2
°
C (36
°
F) minimum
Altitude Sea level to 2.4 km (8,000 ft)
Air flow 200 LFM (minimum), for adequate air flow, provide approxi-
mately 10 to 15 cm (4 to 6 in) of space at both ends
Inlet/outlet air
temperature
Inlet: 50
°
C (122
°
F) maximum
Outlet: 60
°
C (140
°
F) maximum
*Reduce the maximum operating ambient temperature by 1.8
°
C/1000 m or by 1
°
F/1000 ft for
operation at high-altitude sites.