Declaration Of Conformity; Data Connections; Signal Connections; General Remarks Regarding The Ce Marking - Hameg R&S HM8118 Benutzerhandbuch

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: Programmable LCR-Bridge
Type: HM8118
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
❙ 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 61000-4-2: 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
38

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 ap-
plied. As regards susceptibility the limits for industrial en-
vironments will be applied. All connecting cables will influ-
ence emissions as well as susceptability considerably. The
cables used will differ substantially depending on the ap-
plication. During practical operation the following guide-
lines 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 3m 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 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 1m must not be exceeded, also, such con-
nections must not leave the premises. All signal connec-
tions must be shielded (e.g. coax such as RG58/U). With
signal generators double-shielded cables are manda-
tory. It is especially important to establish good ground
connections.
3. External influences
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
General information
cause destruction or malfunction of Hameg instruments,
however, small deviations from the guaranteed specifica-
tions may occur under such conditions.
concerning the
CE marking