Maxtor 10K III manual Acoustical Characteristics-Sound Power per ISO, ’s defined nominal position

Models: 10K III

1 284
Download 284 pages 3.34 Kb
Page 59
Image 59

Specifications

￿￿￿#%1756+%5Table 4-6specifies the acoustical characteristics of the Maxtor Atlas 10K III hard disk drive. The acoustics is measured in an anechoic chamber with background noise <25 dBA.

Acoustical Characteristics—Sound Power per ISO 7779

 

 

 

 

 

 

 

 

 

 

 

 

'4#6+0)￿/1&be mounted

for the5170&test in￿the219manufacturer

’s defined nominal position.

 

12Idle On Track '

MAXTORATLAS10KIII￿/'#0￿'4

18￿./'#04/365170&219'4.7/73￿￿￿￿￿.4GB5+)/#￿

18.4

GB

3.1 Bels (typical)

3.3

Bels

36.

GB

3.4 Bels (typical)

3.6

Bels

73.4

GB

3.6 Bels (typical)

3.8

Bels

 

Seeking Random

 

 

 

18.4

GB

4.1 Bels (typical)

4.3

Bels

36.

GB

4.3 Bels (typical)

4.

Bels

73.4

GB

4.4 Bels (typical)

4.6

Bels

 

 

 

 

 

 

. The specifications for idle and operating acoustic noise as per ISO Standard

7779, “Engineering

ethods for Free Field Conditions Over a Reflecting

TablePLane.4-6 All specifications are sound power level maximum limits, A-

weighted, referred to

picowatt as indicated in the standard. The drive will

The unit under test should be supported so that its bottom surface in the test orientation is less than or equal to 6 centimeters from the chamber floor, but not in contact with it. The unit should be supported with small, compliant, well-damped blocks that rest on the floor.

2.The relationship between bels and dBA for sound power is 1 bel = 10dBA.

￿￿￿￿￿#EQWUVKEA ￿typical6QPCNdrive￿3WCNKV[will have no discrete tones that exceed a tone ratio of 6 dB as measured per ISO 7779, Annex D.

Maxtor Atlas 10K III 4-7

Page 59
Image 59
Maxtor 10K III manual Acoustical Characteristics-Sound Power per ISO, ’s defined nominal position, Bels typical 73.4