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Environmental specifications – Compaq 4200 Family User Manual

Page 48

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B–4 Enclosure 4200 Family LVD Disk Enclosures User Guide

Environmental Specifications

To ensure optimum product operation you must maintain the operational environmental
specifications listed in Table B–3. Especially critical is the ambient temperature.

When shipping this product, or placing it in short term storage, Compaq recommends
maintaining the environmental conditions listed in Table B–4.

Power Supply (without fan)

1

4.5 in (12.7 cm)

11.5 in (29.2 cm)

2

9.5 in (24.1 cm)

16.75 in (42.6 cm)

3

6.25 in (15.9 cm)

13.0 in (33.0 cm)

Weight

4.0 lb (1.8 kg)

6.0 lb (2.7 kg)

Table B–2 Element Physical Specifications (Continued)

Vertical Orientation (see Figure B–2)

Horizontal Orientation (see Figure B–1)

Installed

Shipping Carton

Table B–3 Operating Specifications

Ambient Temperature: 10°C to +35°C (+50°F to +95°F) with an average rate of change of 1°C/hour
maximum and a step change of 3°C or less
Maintaining the

optimum ambient temperature within the specified range ensures that the internal

operating temperatures supports disk drive manufacturer’s MTBF specifications.

Relative Humidity: 40% to 60% (noncondensing) with a step change of 10% or less (noncondensing)

Air Quality: Not to exceed a maximum of 500,000 particles, 0.5 micron or larger, per cubic foot of air.

Heat Dissipation: 1600 BTUs per hour

Table B–4 Shipping or Short Term Storage Specifications

Ambient Temperature: –40°C to +66°C (–40°F to +150°F)

Relative humidity: 10% to 80% noncondensing

Altitude: 15,240 m (50,000 ft)