Chapter 2 - Planning
2.7.3
Environmental specifications for cabinets and consoles
The following table lists the allowable operating environmental limitations for cabinets and consoles.
Environmental Specifications
Operating
temperature
5°C to 35 °C (40 °F to 95 °F)
Storage
temperature
-40 °C to 60 °C (-40 °F to 140 °F)
Humidity
Operating: 10% to 85% RH, non-condensing, 35° C maximum wet
bulb
Non-operating: 10% to 90% RH, non-condensing, 35° C maximum wet
bulb
Maximum
altitude
Operating (with Rotational Hard drives): 3,048 m (10,000 feet)
Non-operating: 12,192 m (40,000 feet)
Maximum operating temperature is reduced as altitude increases.
Airborne
contaminant
level
< 300 angstroms/month Copper Reactivity Level
< 3 mm
3
/m
3
parts per billion H
2
S Gas concentration
< 10 mm
3
/m
3
parts per billion S0
2
, S0
3
Gas concentration
< 1 mm
3
/m
3
parts per billion CI
2
Gas concentration
< 50 mm
3
/m
3
parts per billion NO
X
Gas concentration
< 1 mm
3
/m
3
parts per billion HF Gas concentration
< 500 mm
3
/m
3
parts per billion NH
3
Gas concentration
< 2 mm
3
/m
3
parts per billion O
3
Gas concentration
Severity level G1 mild environment limits per ANSI/ISA-S71.04-1985
Standard**
Maximum
vibration
Operating: Operating random: 0.5g (rms), 5-300 Hz, up to 0.0025g²/Hz
Storage: Non-operating random: 2.0g (rms), 5-500 Hz, up to 0.0150
g²/Hz
Site Induced
Shock
For Cabinets: 6g , 11 msec half-sine pulses, 3 positive, 3 negative per
IEC 60068-2-27 10g, 11 msec half-sine pulses, 3 positive, 3 negative
per IEC 60068-2-27
For Consoles: 10g, 11 msec half-sine pulses, 3 positive, 3 negative per
IEC 60068-2-27
*ANSI/ISA-S71.01-1985 Environmental Conditions for Process Measurement and Control Systems:
Temperature and Humidity.
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