General Information Concerning The Ce Marking - Hameg HM8123 User Manual

General information concerning the CE marking

DECLARATION OF CONFORMITY
HAMEG Instruments GmbH
Industriestraße 6 · D-63533 Mainhausen
The HAMEG Instruments GmbH herewith declares
conformity of the product:
Product name: 3 GHz Programmable Counter
Type: HM8123, HM8123-X
with: HO820
Option: HO880
complies with the provisions of the Directive of the Council
of the European Union on the approximation of the laws of
the Member States
z relating to electrical equipment for use within defined
voltage limits (2006/95/EC) [LVD]
z relating to electromagnetic compatibility (2004/108/EC)
[EMCD]
z 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 61000-4-2: 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
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
16
General remarks regarding the CE marking
Hameg measuring instruments comply with the EMI
norms. Our tests for conformity are based upon the rele-
vant norms. Whenever different maximum limits are optio-
nal Hameg will select the most stringent ones. As regards
emissions class 1B limits for small business will be applied.
As regards susceptibility the limits for industrial environ-
ments will be applied.
All connecting cables will influence emissions as well as
susceptability considerably. The cables used will differ
substantially depending on the application. During practi-
cal 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 prescri-
bed 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 seve-
ral cables only one may be connected.
In general, data connections should be made using dou-
ble-shielded cables. For IEEE-bus purposes the double
screened cable HZ72 from HAMEG is suitable.
2. Signal connections
In general, all connections between a measuring instru-
ment and the device under test should be made as short
as possible. Unless a shorter length is prescribed a maxi-
mum length of 3 m must not be exceeded, also, such con-
nections 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
General information
In the vicinity of strong magnetic or/and electric fields even
a careful measuring set-up may not be sufficient to gu-
ard against the intrusion of undesired signals. This will not
concerning the
cause destruction or malfunction of Hameg instruments,
however, small deviations from the guaranteed specifica-
CE marking
tions may occur under such conditions.
HAMEG Instruments GmbH