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Lenovo 1048, 1046, 1047, 1045 manual Particulate contamination, Contaminant Limits

Models: 1048 1045 1046 1047

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Particulate contamination

Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might pose a risk to the server that is described in this document. Risks that are posed by the presence of excessive particulate levels or concentrations of harmful gases include damage that might cause the server to malfunction or cease functioning altogether. This specification sets forth limits for particulates and gases that are intended to avoid such damage. The limits must not be viewed or used as definitive limits, because numerous other factors, such as temperature or moisture content of the air, can influence the impact of particulates or environmental corrosives and gaseous contaminant transfer. In the absence of specific limits that are set forth in this document, you must implement practices that maintain particulate and gas levels that are consistent with the protection of human health and safety. If Lenovo determines that the levels of particulates or gases in your environment have caused damage to the server, Lenovo may condition provision of repair or replacement of servers or parts on implementation of appropriate remedial measures to mitigate such environmental contamination. Implementation of such remedial measures is a customer responsibility.

Table 30. Limits for particulates and gases

Contaminant

Limits

 

 

Particulate

• The room air must be continuously filtered with 40% atmospheric dust spot efficiency

 

(MERV 9) according to ASHRAE Standard 52.21.

 

• Air that enters a data center must be filtered to 99.97% efficiency or greater, using

 

high-efficiency particulate air (HEPA) filters that meet MIL-STD-282.

 

• The deliquescent relative humidity of the particulate contamination must be more than 60%2.

 

• The room must be free of conductive contamination such as zinc whiskers.

 

 

Gaseous

• Copper: Class G1 as per ANSI/ISA 71.04-19853

 

• Silver: Corrosion rate of less than 300 Å in 30 days

 

 

1ASHRAE 52.2-2008 - Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

2The deliquescent relative humidity of particulate contamination is the relative humidity at which the dust absorbs enough water to become wet and promote ionic conduction.

3ANSI/ISA-71.04-1985.Environmental conditions for process measurement and control systems: Airborne contaminants. Instrument Society of America, Research Triangle Park, North Carolina, U.S.A.

Important information for the European Directive 2002/96/EC

EU Only

The Waste Electrical and Electronic Equipment (WEEE) mark applies only to countries within the European Union (EU) and Norway. Appliances are labeled in accordance with European Directive 2002/96/EC concerning waste electrical and electronic equipment (WEEE). The Directive determines the framework for the return and recycling of used appliances as applicable throughout the European Union. This label is applied to various products to indicate that the product is not to be thrown away, but rather reclaimed upon

Appendix C. Notices 115

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Lenovo 1048 Particulate contamination, Important information for the European Directive 2002/96/EC, Contaminant Limits
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1048, 1045, 1046, 1047 specifications

Lenovo has been a leading name in the PC industry, offering a diverse range of laptops designed to meet various computing needs. Among its popular models are the Lenovo 1047, 1046, 1045, and 1048, each catering to different segments of users with distinct features, technologies, and characteristics.

The Lenovo 1047 series is known for its robust performance and user-friendly design. It often comes equipped with the latest Intel or AMD processors, ensuring efficient handling of multitasking and heavy applications. This model typically features a Full HD display, providing users with a crisp and vibrant viewing experience, whether for work, gaming, or media consumption. The build quality is commendable, using premium materials that ensure durability while maintaining a sleek aesthetic.

Moving to the Lenovo 1046, this variant often focuses more on portability without compromising performance. Featuring a lightweight design, it is an ideal option for students and professionals who are constantly on the go. The battery life in the 1046 is typically enhanced, allowing users to work or stream content for extended periods without needing to recharge frequently. Additionally, this model may include features such as fast Wi-Fi connectivity and USB-C ports for versatile connectivity options.

The 1045 series highlights versatility, often designed for mixed usage scenarios. It generally incorporates advanced cooling technology to prevent overheating, even during intensive tasks. The display quality often balances between good resolution and energy efficiency, making it suitable for various environments. The 1045 might also include features like a fingerprint reader for added security and convenience, ensuring quick access while keeping data safe.

Lastly, the Lenovo 1048 targets budget-conscious consumers, providing essential features without breaking the bank. While it might have lower specs compared to its higher-tier counterparts, it often delivers solid performance for everyday tasks such as browsing, document editing, and streaming. The design remains appealing, with a user-friendly interface and reliable build quality. This series typically excels in value, making it an excellent choice for entry-level users and casual everyday computing needs.

Overall, Lenovo’s 1047, 1046, 1045, and 1048 models showcase the brand’s commitment to delivering a broad spectrum of laptops that cater to different user needs, merging technology with practicality for various computing environments.