General Remarks Regarding The Ce Marking - Hameg HM7042-5 User Manual

G e n e r a l r e m a r k s r e g a r d i n g t h e C E m a r k i n g
DECLARATION OF CONFORMITY
Manufacturer:
HAMEG Instruments GmbH
Industriestraße 6 · D-63533 Mainhausen
The HAMEG Instruments GmbH herewith declares conformity of the
product:
Product name: Triple Power Supply
Type:
HM7042-5
complies with the provisions of the Directive of the Council of the
European Union on the approximation of the laws of the Member
States
relating to electrical equipment for use within defined voltage limits
(2006/95/EC) [LVD]
relating to electromagnetic compatibility (2004/108/EC) [EMCD]
relating to restriction of the use of hazardous substances in
electrical and electronic equipment (2011/65/EC) [RoHS].
Conformity with LVD and EMCD is proven by compliance with the
following standards:
EN 61010-1: 04/2015
EN 61326-1: 07/2013
EN 55011: 11/2014
EN 61000-3-2: 03/2015
EN 61000-3-3: 03/2014
EN 61000-4-2: 12/2009
EN 61000-4-3: 04/2011
EN 61000-4-4: 04/2013
EN 61000-4-5: 03/2015
EN 61000-4-6: 08/2014
EN 61000-4-11: 02/2005
EN 61000-6-3: 11/2012
For the assessment of electromagnetic compatibility, the limits of
radio interference for Class B equipment as well as the immunity to
interference for operation in industry have been used as a basis.
Date: 8.6.2015
Signature:
Holger Asmussen
General Manager
北京海洋兴业科技股份有限公司（证券代码：839145）

General remarks regarding the CE marking

HAMEG measuring instruments comply with the EMI
norms. Our tests for conformity are based upon the
relevant norms. Whenever different maximum limits are
optional HAMEG will select the most stringent ones. As
regards emissions class 1B limits for small business will be
applied. As regards susceptability the limits for industrial
environments will be applied. All connecting cables will
in uence emissions as well as suscepta ility considera ly.
The cables used will differ substantially depending on
the application. During practical operation the following
guidelines should be absolutely observed in order to
minimize EMI:
1. Data connections
Measuring instruments may only be connected to external
associated equipment (printers, computers etc.) by using
well shielded cables. Unless shorter lengths are prescribed
a maximum length of 3 m must not be exceeded for all data
interconnections (input, output, signals, control). In case an
instrument interface would allow connecting several cables
only one may be connected. In general, data connections
should be made using double-shielded cables. For IEEE-bus
purposes the double screened cable HZ72 from is suitable.
2. Signal connections
In general, all connections between a measuring instrument
and the device under test should be made as short as
possible. Unless a shorter length is prescribed a maximum
length of 3 m must not be exceeded, also, such connections
must not leave the premises. All signal connections must be
shielded (e.g. coax such as RG58/U). With signal generators
double-shielded cables are mandatory. It is especially
important to establish good ground connections.
3. External influences
In the vicinity of strong magnetic or/and electric elds
even a careful measuring set-up may not e suf cient
to guard against the intrusion of undesired signals. This
will not cause destruction or malfunction of HAMEG
instruments, however, small deviations from the guaranteed
speci cations may occur under such conditions.
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