ViewSonic VA2012b, User Manual

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ViewSonic VA2012w/VA2012wb i
TCO
信息
Congratulations!
You have just purchased a TCO’99 approved and labelled product!
Your choice has provided you with a product developed for
professional use. Your purchase has also contributed to reducing the
burden on the environment and also to the further development of
environmentally adapted electronics products.
Why do we have environmentally labelled computers?
In many countries, environmental labelling has become an established method for encouraging
the adaptation of goods and services to the environment. With the growing manufacture and
usage of electronic equipment throughout the world, there is a recognized concern for the
materials and substances used by electronic products with regards to their eventual recycling
and disposal. By proper selection of these materials and substances, the impact on the
environment can be minimized.
There are also other characteristics of a computer, such as energy consumption levels, that are
important from the viewpoints of both the work (internal) and natural (external) environments.
Electronic equipment in offices is often left running continuously, resulting in unnecessary
consumption of large amounts of energy and additional power generation. From the standpoint
of carbon dioxide emissions alone, it is vital to save energy.
What does labelling involve?
The product meets the requirements for the TCO’99 scheme which provides for international
and environmental labelling of personal computers and/or displays. The labelling scheme was
developed as a joint effort by the TCO (The Swedish Confederation of Professional
Employees), Svenska Naturskyddsforeningen (The Swedish Society for Nature Conservation)
and Statens Energimyndighet (The Swedish National Energy Administration).
Approval requirements cover a wide range of issues: ecology, ergonomics, emission of
electrical and magnetical fields, energy consumption and electrical safety.
Ecological criteria impose restrictions on the presence and use of heavy metals, brominated
and chlorinated flame retardants, and other substances. The product must be prepared for
recycling and the manufacturing site(s) shall be certified according to ISO14001 or EMAS
registered.
Energy requirements include a demand that the system unit and/or display, after a certain
period of inactivity, shall reduce its power consumption to a lower level in one or more stages.
The length of time to reactivate the system unit shall be reasonable for the user.
Labelled products must meet strict environmental demands, for example, in respect of the
reduction of electrical and magnetical fields as well as work load and visual ergonomics.