Warranted Characteristics
TDS 420A, TDS 430A & TDS 460A Service Manual
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Table 1- 16: Certifications and compliances (cont.)
Category Standards or description
EC Declaration of Conformity --
Low Voltage
Compliance was demonstrated to the following specification as listed in the Official Journal of the
European Union:
Low Voltage Directive 73/23/EEC, amended by 93/69/EEC
EN 61010-1/A2: 1995 Safety requirements for electrical equi pment for measurement
control and laboratory use.
U.S. Nationall y Recognized
Testing Laboratory Listing
UL3111-1 Standard for electrical measuring and test equipment.
Canadian Certification CAN/CSA C22.2 No. 1010.1 Safety requirements for electrical equipment for measurement,
control, and laboratory use.
Additional Compliance ISA-S82.02. 01-1999 Safety standard for electrical and electronic test, measuring,
controlling, and related equipment.
IEC61010-1/A2: 1995 Safety requirements for electrical equipment for measurement,
control, and laboratory use.
Installation (Overvoltage)
Category
Terminals on this product may have different installation (overvoltage) category designations. The
installation categories are:
CAT III Distribution-level m ains (usually permanently connected). Equipment at this level is
typically in a fixed indust rial locati on.
CAT II Local-level mains (wall sockets). Equipment at this level includes appliances, portable
tools, and similar products. Equipment i s usually cord-connected.
CAT I Secondary (signal level) or battery operated circuits of electronic equipment.
Pollution Degree A measure of the contaminates 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 2 Normally only dry, nonconduct ive pollut ion occurs. Occasionally a
temporary conductivity that is caused by condensation must be
expected. This location is a typical office/home environment.
Temporary condensation occurs only when the product is out of
service.
Safety Class
Class 1 (as defined in IEC 1010-1, Annex H) -- grounded product