Tektronix TG700, Руководство пользователя

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Compliance Information
Safety Class Class 1 – grounded product.
Safety Certi fi cation of
Plug-in Modules
The safety certi fi cation is valid only when installed in an appropriately approved
(by a USA NRTL or a Canada Certi fi ed Organization) mainframe.
Pollution Degree
Description
A measure of the contaminants that could occur in the environment around
and within a product. Typically the internal environment inside a product is
considered to be the same as the external. Products should be used only in the
environment for which they are rated.
Pollution Degree 1. No pollution or only dry, nonconductive pollution occurs.
Products in this category are generally encapsulated, hermetically sealed, or
located in clean rooms.
Pollution Degree 2. Normally only dry, nonconductive pollution occurs.
Occasionally a temporary conductivity that is caused by condensation must
be expected. This location is a typical of
fi ce/home environment. Temporary
condensation occurs only when the product is out of service.
Pollution Degree 3. Conductive pollution, or dry, nonconductive pollution
that becomes conductive due to condensation. These are sheltered locations
where neither temperature nor humidity is controlled. The area is protected
from direct sunshine, rain, or direct wind.
Pollution Degree 4. Pollution that generates persistent conductivity through
conductive dust, rain, or snow. Typical outdoor locations.
Pollution Degree
Pollution Degree 2 (as de fi ned in IEC 61010-1). Note: Rated for indoor use only.
Installation (Overvoltage)
Category Descriptions
Terminals on this product may have different installation (overvoltage) category
designations. The installation categories are:
Measurement Category IV. For measurements performed at the source of
low-voltage installation.
Measurement Category III. For measurements performed in the building
installation.
Measurement Category II. For measurements performed on circuits directly
connected to the low-voltage installation.
Measurement Category I. For measurements performed on circuits not
directly connected to MAINS.
Overvoltage Category Overvoltage Category II (as de fi ned in IEC 61010-1)
TG700 TV Signal Generator Platform User Manual xv