Hameg HM7042-5, Service Manual, Page: 2 / 22

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Subject to change without notice
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 infl uence emissions as well as susceptability
considerably. 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 connections the double-shielded HAMEG cables
HZ72S and HZ72L are 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.
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DECLARATION DE CONFORMITE
Hersteller HAMEG Instruments GmbH
Manufacturer Industriestraße 6
Fabricant D-63533 Mainhausen
Die HAMEG Instruments GmbH bescheinigt die Konformität für das Produkt
The HAMEG Instruments GmbH declares conformity of the product
HAMEG Instruments GmbH déclare la conformite du produit
Bezeichnung / Product name / Designation:
Dreifach-Netzgerät/ Triple Power Supply/
Alimentation triple
Typ / Type / Type:
HM7042-5
mit / with / avec: -
Optionen / Options / Options:
mit den folgenden Bestimmungen / with applicable regulations / avec les directives
suivantes
EMV Richtlinie 89/336/EWG ergänzt durch 91/263/EWG, 92/31/EWG
EMC Directive 89/336/EEC amended by 91/263/EWG, 92/31/EEC
Directive EMC 89/336/CEE amendée par 91/263/EWG, 92/31/CEE
Niederspannungsrichtlinie 73/23/EWG ergänzt durch 93/68/EWG
Low-Voltage Equipment Directive 73/23/EEC amended by 93/68/EEC
Directive des equipements basse tension 73/23/CEE amendée par 93/68/CEE
Angewendete harmonisierte Normen / Harmonized standards applied / Normes
harmonisées utilisées
Sicherheit / Safety / Sécurité
EN 61010-1:2001 (IEC 61010-1:2001)
EN 61010-1: 1993 / IEC (CEI) 1010-1: 1990 A 1: 1992 / VDE 0411: 1994
Überspannungskategorie / Overvoltage category / Catégorie de surtension: II
Verschmutzungsgrad / Degree of pollution / Degré de pollution: 2
Elektromagnetische Verträglichkeit / Electromagnetic compatibility / Compatibilité
électromagnétique
EN 61326-1/A1
Störaussendung / Radiation / Emission: Tabelle / table / tableau 4, Klasse / Class /
Classe B.
Störfestigkeit / Immunity / Immunité: Tabelle / table / tableau A1.
EN 61000-3-2/A14
Oberschwingungsströme / Harmonic current emissions / Émissions de courant
harmonique: Klasse / Class / Classe D.
EN 61000-3-3
Spannungsschwankungen u. Flicker / Voltage fl uctuations and fl icker / Fluctuations de
tension et du fl icker.
Datum / Date / Date
01.09.2004
Unterschrift / Signature / Signatur
Manuel Roth
Manager
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 infl uences
In the vicinity of strong magnetic or/and electric fi elds even a careful
measuring set-up may not be suffi cient to guard against the intrusion
of undesired signals. This will not cause destruction or malfunction of
HAMEG instruments, however, small deviations from the guranteed
specifi cations may occur under such conditions.
HAMEG Instruments GmbH
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