19
Service Level
Sound Power (LWAd, bels)
(1 bel=10 decibels, re 10-12
Watts)
Sound Pressure Operator
Position (LpAm, decibels) (re
2x10-5 Pa)
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
Hard Drive Accessing
3.7
28
24
CD Drive Accessing
5.1
42
37
Idle
3.6
28
23
Service Level
Sound Power (LWAd, bels)
(1 bel=10 decibels, re 10-12
Watts)
Sound Pressure Operator
Position (LpAm, decibels) (re
2x10-5 Pa)
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
Floppy Drive Accessing
4.9
40
39
Hard Drive Accessing
3.8
28
23
CD Drive Accessing
5.5
45
38
Idle
3.9
28
23
Service Level
Sound Power (LWAd, bels)
(1 bel=10 decibels, re 10-12
Watts)
Sound Pressure Operator
Position (LpAm, decibels) (re
2x10-5 Pa)
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
Floppy Drive Accessing
4.8
37
32
Hard Drive Accessing
4.0
31
27
CD Drive Accessing
4.8
31
26
Idle
3.9
30
25
Regulatory Compliance and Environmental
Product related conformity assessment and regulatory authorizations including Product Safety, Electromagnetic Compatibility (EMC),
Ergonomics, and Communication Devices relevant to this product may be viewed at www.dell.com/regulatory_compliance. The
Regulatory Datasheet for this product is located at http://www.dell.com/regulatory_compliance.
Details of Dell’s environmental stewardship program to conserve product energy consumption, reduce or eliminate materials for
disposal, prolong product life span and provide effective and convenient equipment recovery solutions may be viewed at www.dell.
com/environment. Product related conformity assessment, regulatory authorizations, and information encompassing Environmental,
Energy Consumption, Noise Emissions, Product Materials Information, Packaging, Batteries, and Recycling relevant to this product may
be viewed by clicking the Design for Environment link on the webpage.
Acoustic Noise Emission Information
OptiPlex 740 MT: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
OptiPlex™ 740 DT: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
OptiPlex® 740 SFF: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
1.
The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in
accordance with ISO 9296;
Summary of Contents for OPTIPLEX 740
Page 1: ...Dell OptiPlex 740 ...
