Specifications

Product Description
11
The following are the environmental specifications of the EPC-7 when it contains
floppy and hard disk drives.
Characteristic Value
Temperature operating 5°C - 45°C at point of entry of forced air
derated 2°C per 1000 ft (300 m) over 10,000
ft (3000m)
10°C per hour max excursion gradient
storage -40°C - 70°C
2°C per hour max excursion gradient
Cooling For 10°C rise, airflow of 2 liters per second
against 0.014mm H
2
O backpressure
Humidity operating 20% - 80% noncondensing
26°C max wet bulb
storage 5% - 95% noncondensing
48°C max wet bulb
Altitude operating 0 - 10,000 ft (3000 m)
storage 0 - 40,000 ft (12,000 m)
Vibration operating 0.015 inch (0.38 mm) P-P displacement with
0.6 g peak (max) acceleration over
5-500 Hz
storage 0.030 inch (0.76 mm) P-P displacement with
2.0 g peak (max) acceleration over
5-500 Hz
Shock operating 5 g, 11 ms duration, half-sine shock pulse,
no soft errors, 10 g with 1 soft error per
block
storage 10 g, 11 ms duration, half-sine shock pulse
Table 2. EPC-7 Environmental Specifications With Floppy and Hard Drives.
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