background image

18

Subject to change without notice

picture 3

picture 2

picture 1

Important hints

Important hints

(1)

(2)

(3)

(4)

(5)

(6)

Symbols

Symbol 1:

Attention, please consult manual

Symbol 2:

Danger! High voltage!

Symbol 3:

Ground connection

Symbol 4:

Important note

Symbol 5:

Hints for application

Symbol 6:

Stop! Possible instrument damage!

Unpacking

Please check for completeness of parts while unpacking. Also
check for any mechanical damage or loose parts. In case of
transport damage inform the supplier immediately and do not
operate the instrument.

Positioning

Two positions are possible: According to picture 1 the front feet
are used to lift the instrument so its front points slightly upward.
(Appr. 10 degrees)

If the feet are not used the instrument can be combined with
many other HAMEG  instruments.

In case several instruments are stacked the feet rest in the
recesses of the instrument below so the instruments can not be
inadvertently moved. Please do not stack more than 3 instruments.
A higher stack will become unstable, also heat dissipation may
be impaired.

Transport

Please keep the carton in case the instrument may require later
shipment for repair. Improper packaging may void the warranty!

Storage

Dry indoors storage is required. After exposure to extreme
temperatures 2 h should be allowed before the instrument is
turned on.

Safety instructions

The instrument conforms to VDE 0411/1 safety standards
applicable to measuring instruments and left the factory in proper
condition according to this standard. Hence it conforms also to
the European standard EN 61010-1 resp. to the international
standard IEC 61010-1. Please observe all warnings in this manual
in order to preserve safety and guarantee operation without any
danger to the operator. According to safety class 1 requirements
all parts of the housing and the chassis are connected to the
safety ground terminal of the power connector. For safety reasons
the instrument must only be operated from 3 terminal power
connectors or via isolation transformers. In case of doubt the
power connector should be checked according to DIN VDE 0100/
610.

Do not disconnect the safety ground either inside or
outside of the instrument!

– The line voltage of the instrument must correspond to the

line voltage used.

– Opening of the instrument is allowed only to qualified

personnel

– Prior to opening the instrument must be disconnected from

the line and all other inputs/outputs.

In any of the following cases the instrument must be taken out of
service and locked away from unauthorized use:

– Visible damages
– Damage to the power cord
– Damage to the fuse holder
– Loose parts
– No operation
– After longterm storage in an inappropriate environment ,

e.g. open air or high humidity.

– Excessive transport stress

Exceeding 42 V
By series connecting all outputs the 42 V limit can be
exceeded which means that touching live parts may
incur danger of life! It is assumed that only qualified
and extensively instructed personnel are allowed to
operate this instrument and/or the loads connected
to it.

Proper operating conditions

The instruments are destined for use in dry clean rooms. Opera-
tion in an environment with high dust content, high humidity,
danger of explosion or chemical vapors is prohibited. Operating
temperature is 0 .. + 40 degrees C. Storage or transport limits are
– 10 .. + 70 degrees C. In case of condensation 2 hours are to be

STOP

STOP

STOP

STOP

TiPP

Содержание HM 7042-4

Страница 1: ...ANUEL POWER POWER SUPPLY HM7042 4 VOLT AMP VOLT AMP VOLT AMP max 150 Vp 0 32V 2A max 150 Vp 0 5 5V 5A max 150 Vp 0 32V 2A FINE COARSE CURRENT LIMIT ELECTRONIC FUSE VOLTAGE CURRENT LIMIT OUTPUT ALL CHA...

Страница 2: ...hirmte Koaxialkabel RG223 U RG214 U verwendet werden 3 Auswirkungen auf die Ger te Beim Vorliegen starker hochfrequenter elektrischer oder magnetischer Felder kann es trotz sorgf ltigen Messaufbaues b...

Страница 3: ...6 Transport 6 Lagerung 6 Sicherheitshinweise 6 Bestimmungsgem er Betrieb 7 Garantie 7 Wartung 7 Netzspannung 7 Sicherungswechsel der Ger tesicherung 7 Bezeichnung der Bedienelemente 8 Netzger tegrund...

Страница 4: ...geregelte Netzteile typischen Verluste Die Strombegrenzung aller Spannungsquellen ist stufenlos ein stellbar Der bergang von Spannungs auf Stromregelung erfolgt automatisch und wird durch eine LED ang...

Страница 5: ...alisiert bergang zur Strom regelung Ausgang 5 5 V Einstellbereich 0 5 5 V stufenlos einstellbar mit Drehregler Restwelligkeit 2 mVeff Ausgangsstrom max 5 A Strombegrenzung elektronische Sicherung 0 5...

Страница 6: ...egel und Laborger te gebaut und gepr ft und hat das Werk in sicherheitstechnisch einwand freiem Zustand verlassen Es entspricht damit auch den Bestim mungen der europ ischen Norm EN 61010 1 bzw der in...

Страница 7: ...rch den t glichen Gebrauch verschmutzt sein gen gt die Reinigung mit einem feuchten Tuch Bei hartn ckigem Schmutz verwenden Sie ein mildes Reinigungsmittel Wasser und 1 Entspannungsmittel Bei fettigem...

Страница 8: ...32 V Fein Grobeinstellung VOLTAGE Einstellregler Spannung 0 5 5 V CURRENT LIMIT Einstellregler f r Imax der Strom begrenzung elektronischen Sicherung 0 32 V 2 A Sicherheitsbuchsen 32 V Ausg nge 0 5 5...

Страница 9: ...d nur eine kleine Eingangskapazit t zur Siebung ben tigt Die im Kondensa tor gespeicherte Energie ist proportional zum Quadrat der Ein gangsspannung gem der Formel E x C x U Sekund r getaktete Schaltn...

Страница 10: ...Netzge r ten mit Netzteilen anderer Hersteller darauf dass die Einzelstr me der einzelnen Quellen gleichm ig ver teilt sind Es k nnen bei parallelgeschalteten Netzge r ten Ausgleichsstr me innerhalb...

Страница 11: ...rch Reihenschaltung oder Parallelschaltung der Aus gangsspannungen k nnen sich allerdings einzelne Spezifikati onen des Ger tes wie Innenwiderstand St rspannungen oder Regelverhalten ver ndern Ausgang...

Страница 12: ...reht schalten im Modus elektronische Sicherung alle Ausg nge sofort ab Im Modus Strombegrenzung leuchtet die LED und die Aus gangsspannung sinkt auf 0 Volt ab 0 5 5V 5A Ausgangspannung regelbar von 0...

Страница 13: ...zgeschlossen und mit CURRENT LIMIT der Wert von Imax eingestellt Der Kurzschluss des Aus gangs wird nun entfernt ELECTRONIC FUSE wird bet tigt Die LED ON leuchtet Das HM 7042 4 befindet sich im Modus...

Страница 14: ...guard against the intrusion of undesired signals This will not cause destruction or malfunction of HAMEG instruments however small deviations from the guranteed specifications may occur under such con...

Страница 15: ...age 18 Safety instructions 18 Proper operating conditions 18 Warranty 19 Maintenance 19 Mains voltage 19 Changing the line fuse 19 Listing of operating controls 20 Basics of power supplies 21 Linear p...

Страница 16: ...eaching the current limit will cause automatic switchover from voltage to current regulation which is indicated by a LED In order to protect sensitive loads or such loads which require multiple voltag...

Страница 17: ...Range 0 5 5 V continuously variable knob Ripple 2 mVrms Current max 5 A Current limit electronic fuse 0 5 A continuously variable knob Dynamic behaviour Load change from 10 to 90 full load 330 s to wi...

Страница 18: ...dard IEC 61010 1 Please observe all warnings in this manual in order to preserve safety and guarantee operation without any danger to the operator According to safety class 1 requirements all parts of...

Страница 19: ...may be removed with benzine petrol ether Displays and windows may only be cleaned with a moist cloth Do not use alcohol solvents or paste Under no circumstances any fluid should be allowed to get int...

Страница 20: ...ut voltage 0 32 V VOLTAGE Adjustment for 0 5 5 V CURRENT LIMIT Adjustment of current limit Imax of both current limit and electronic fuse threshold 0 32 V 2 A Safety terminals of the 32 V out puts 0 5...

Страница 21: ...tance values needed here for filtering the 100 resp 120 Hz ripple are higher due to the lower voltage All SMPS feature a very much higher efficiency from appr 70 up to over 95 compared to any linear s...

Страница 22: ...vantages of a SMPS especially high efficiency and those of a linear regulator e g high quality regulation are combined A high power DC DC converter is used as a preregulator for the following linear r...

Страница 23: ...CW to 0 A all outputs will be turned off immediately if the function electronic fuse was activated In case Current limit was selected the LEDs will light up the voltage will drop to zero 0 5 5 V 5 A T...

Страница 24: ...After setting Imax the short has to be removed Then Electronic Fuse is depressed the LED ON will light up indicating that the HM 7042 4 is in the Electronic Fusemode Inthismodealloutputswillbeimmediat...

Страница 25: ...25 Subject to change without notice Survey of all operating controls and displays...

Страница 26: ...26 Subject to change without notice...

Страница 27: ...27 Subject to change without notice...

Страница 28: ...800 0 Telefax 0 61 82 800 100 E mail sales hameg de Printed in Germany Oscilloscopes Multimeters Counters Frequency Synthesizers Generators R and LC Meters Spectrum Analyzers Power Supplies CurveTrace...

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