Hameg HM404-2.02 Manual
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Subject to change without notice4General information regarding the CE markingHAMEG instruments fulfill the regulations of the EMC directive. The conformity test made by HAMEG is based on the actual generic- andproduct standards. In cases where different limit values are applicable, HAMEG applies the severer standard. For emission the limits forresidential, commercial and light industry are applied. Regarding the immunity (susceptibility) the limits for industrial environment have beenused.The measuring- and data lines of the instrument have much influence on emmission and immunity and therefore on meeting the acceptancelimits. For different applications the lines and/or cables used may be different. For measurement operation the following hints and conditionsregarding emission and immunity should be observed:1. Data cablesFor the connection between instruments resp. their interfaces and external devices, (computer, printer etc.) sufficiently screened cables mustbe used. Without a special instruction in the manual for a reduced cable length, the maximum cable length of a dataline must be less than 3meters and not be used outside buildings. If an interface has several connectors only one connector must have a connection to a cable.Basically interconnections must have a double screening. For IEEE-bus purposes the double screened cables HZ72S and HZ72L from HAMEGare suitable.2. Signal cablesBasically test leads for signal interconnection between test point and instrument should be as short as possible. Without instruction in themanual for a shorter length, signal lines must be less than 3 meters and not be used outside buildings.Signal lines must screened (coaxial cable - RG58/U). A proper ground connection is required. In combination with signal generators doublescreened cables (RG223/U, RG214/U) must be used.3. Influence on measuring instruments.Under the presence of strong high frequency electric or magnetic fields, even with careful setup of the measuring equipment an influence ofsuch signals is unavoidable.This will not cause damage or put the instrument out of operation. Small deviations of the measuring value (reading) exceeding the instrumentsspecifications may result from such conditions in individual cases.4. RF immunity of oscilloscopes.4.1 Electromagnetic RF fieldThe influence of electric and magnetic RF fields may become visible (e.g. RF superimposed), if the field intensity is high. In most cases thecoupling into the oscilloscope takes place via the device under test, mains/line supply, test leads, control cables and/or radiation. The deviceunder test as well as the oscilloscope may be effected by such fields.Although the interior of the oscilloscope is screened by the cabinet, direct radiation can occur via the CRT gap. As the bandwidth of eachamplifier stage is higher than the total –3dB bandwidth of the oscilloscope, the influence RF fields of even higher frequencies may be noticeable.4.2 Electrical fast transients / electrostatic dischargeElectrical fast transient signals (burst) may be coupled into the oscilloscope directly via the mains/line supply, or indirectly via test leads and/orcontrol cables. Due to the high trigger and input sensitivity of the oscilloscopes, such normally high signals may effect the trigger unit and/ormay become visible on the CRT, which is unavoidable. These effects can also be caused by direct or indirect electrostatic discharge.HAMEG GmbHKONFORMITÄTSERKLÄRUNGDECLARATION OF CONFORMITYDECLARATION DE CONFORMITE InstrumentsHerstellers HAMEG GmbHManufacturer Kelsterbacherstraße 15-19Fabricant D - 60528 FrankfurtBezeichnung / Product name / Designation:Oszilloskop/Oscilloscope/OscilloscopeTyp / Type / Type: HM404-2mit / with / avec: -Optionen / Options / Options: -mit den folgenden Bestimmungen / with applicable regulations / avec lesdirectives suivantesEMV Richtlinie 89/336/EWG ergänzt durch 91/263/EWG, 92/31/EWGEMC Directive 89/336/EEC amended by 91/263/EWG, 92/31/EECDirective EMC 89/336/CEE amendée par 91/263/EWG, 92/31/CEENiederspannungsrichtlinie 73/23/EWG ergänzt durch 93/68/EWGLow-Voltage Equipment Directive 73/23/EEC amended by 93/68/EECDirective des equipements basse tension 73/23/CEE amendée par 93/68/CEEAngewendete harmonisierte Normen / Harmonized standards applied / Normesharmonisées utiliséesSicherheit / Safety / SécuritéEN 61010-1: 1993 / IEC (CEI) 1010-1: 1990 A 1: 1992 / VDE 0411: 1994EN 61010-1/A2: 1995 / IEC 1010-1/A2: 1995 / VDE 0411 Teil 1/A1: 1996-05Überspannungskategorie / Overvoltage category / Catégorie de surtension: IIVerschmutzungsgrad / Degree of pollution / Degré de pollution: 2Elektromagnetische Verträglichkeit / Electromagnetic compatibilityCompatibilité électromagnétiqueEN 61326-1/A1Störaussendung / Radiation / Emission: Tabelle / table / tableau 4, Klasse / Class/ Classe B.Störfestigkeit / Immunity / Imunitee: Tabelle / table / tableau A1.EN 61000-3-2/A14Oberschwingungsströme / Harmonic current emissions / Émissions de courantharmonique:Klasse / Class / Classe D.EN 61000-3-3Spannungsschwankungen u. Flicker / Voltage fluctuations and flicker /Fluctuations de tension et du flicker.Datum /Date /Date Unterschrift / Signature /Signatur15.01.2001E. BaumgartnerTechnical Manager /Directeur Technique® |
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