Omega Engineering OMB-DBK-34A, User Manual

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CE Standards and Directives
The electromagnetic compatibility (EMC) directives specify two basic requirements:
•
The device must not interfere with radio or telecommunications.
•
The device must be immune from electromagnetic interference from RF transmitters etc.
The standards are published in the Official Journal of European Union under direction of CENELEC
(European Committee for Electrotechnical Standardization). The specific standards relevant to LogBook
and Daq device equipment are listed on the product’s Declaration of Conformity.
The safety standard that applies to LogBook and Daq device products is EN 61010-1 : 1993 ( Safety
Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General
Requirements
). Environmental conditions include the following:
•
indoor use
•
altitude up to 2000 m
•
temperature 5°C to 40°C (41°F to 104°F)
•
maximum relative humidity 80% for temperatures up to 31°C (87.8°F) decreasing linearly
to 50% relative humidity at 40°C (104°F)
•
mains supply voltage fluctuations not to exceed ±10% of the nominal voltage
•
other supply voltage fluctuations as stated by the manufacturer
•
transient overvoltage according to installation categories (overvoltage categories) I, II and III.
For mains supply, the minimum and normal category is II.
•
pollution degree Ior II in accordance with IEC 664.
For clarification, terms used in some Declarations of Conformity include:
•
pollution degree : any addition of foreign matter, solid, liquid or gaseous (ionized gases) that
may produce a reduction of dielectric strength or surface resistivity. A pollution degree I has
no influence on safety and implies: the equipment is at operating temperature with non-
condensing humidity conditions; no conductive particles are permitted in the atmosphere;
warm-up time is sufficient to avert any condensation or frost; no hazardous voltages are
applied until completion of the warm-up period.
Pollution degree II implies the expectation
of occasional condensation.
•
overvoltage (installation) category : classification with limits for transient over-voltage,
dependent on the nominal line voltage to earth. Category I implies signals without high
transient values. Category II applies to typical mains power lines with some transients.
Safety Conditions
Users must comply with all relevant safety conditions listed in the Declarations of Conformity and in the
user documentation. This manual, LogBook, and Daq device hardware use the following Warning and
Caution symbols:
(If you see these symbols on a product, carefully read the related information and be alert to the possibility
of personal injury).
This warning symbol is used in this manual or on the equipment to warn of possible
injury or death from electrical shock under noted conditions.
This warning/caution symbol is used to warn of possible personal injury or
equipment damage under noted conditions.
LogBook and Daq device products contain no user-serviceable parts; refer all service to qualified
personnel.
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DBK Option Cards and Modules