Hameg HM7042-5 User manual

Power supply
HM7042-5
Service-Manual

2Subject 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 influence 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 fluctuations and flicker / Fluctuations de
tension et du flicker.
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 influences
In the vicinity of strong magnetic or/and electric fields even a careful
measuring set-up may not be sufficient to 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 conditions.
HAMEG Instruments GmbH
General remarks regarding the CE marking

3
Subject to change without notice
Declaration of conformity 2
General remarks regarding the CE marking 2
Triple Power Supply HM7042-5 4
Specifications 5
Control Elements 6
Layout and circuit diagramms 7
Content

4Subject to change without notice
HM7042-5
Triple Power Supply
HM7042-5
2x 0-32 V/0-2 A 0-5.5 V/0-5 A
Separate voltage and current displays for each output:
4 digits at channel I+III; 3 digits at channel II
Display resolution:
10 mV/1 mA at channel I+III; 10 mV/10 mA at channel II
Adjustable current limiting and electronic fuse for each output
Pushbutton for activating/deactivating all outputs
Low residual ripple, high output power, very good regulation
Temperature-controlled fan
Silicone test cable HZ10

5
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Specifications
Triple Power Supply HM7042-5
Valid at 23 °C after a 30 minute warm-up period
Outputs
2 x 0 – 32 V and 0..5.5 V ON/OFF pushbutton control, SMPS followed
by a linear regulator, floating outputs for
parallel/serial operation, current limit and
electronic fuse.
Channel I + III (32 V)
Range: 2 x 0 – 32 V, continuously adjustable
2 knobs (coarse/fine)
Ripple: ≤100 μVrms (3 Hz – 300 kHz)
Current: max. 2 A
Current limit/electronic fuse: 0 – 2 A, continuously adjustable (knob)
Recovery time (10 % - 90 % load variation)
80 μs within ±1 mV of nominal value
30 μs within ±10 mV of nominal value
00 μs within ±100 mV of nominal value
Max. transient deviation: typ. 75 mV
Recovery time (50 % basic load, 10 % load variation)
30 μs within ±1 mV of nominal value
05 μs within ±10 mV of nominal value
00 μs within ±100 mV of nominal value
Max. transient deviation: typ. 17 mV
Display
7-segment LED: 32.00 V (4 digit) / 2.000 A (4 digit)
Resolution: 0.01 V / 1 mA
Display accuracy: ±3 digit voltage / ±4 digit current
LED: indicates current limit
Channel II (5.5 V)
Range: 0 – 5.5 V, continuously adjustable (knobs)
Ripple: ≤100 μVrms (3 Hz – 300 kHz)
Current: max. 5 A
Current limit /
electronic fuse: 0 – 5 A, continuously adjustable (knob)
Recovery time (10 % - 90 % load variation):
80 μs within ±1 mV of nominal value
10 μs within ±100 mV of nominal value
Max. transient deviation: typ. 170 mV
Recovery time (50 % basic load, 10 % load variation):
30 μs within ±1 mV of nominal value
15 μs within ±10 mV of nominal value
00 μs within ±100 mV of nominal value
Max. transient deviation: typ. 60 mV
Display
7-segment LED: 5.50 V (3 digit) / 5.00 A (3 digit)
Resolution: 0.01 V/10 mA
Display accuracy: ±3 digit voltage / ±1 digit current
LED: indicates current limit
Maximum ratings
Max. voltage applicable to output terminals (ON/OFF):
CH I + CH III: 33 V
CH II: 6 V
Reverse voltage: max. 0.4 V
Reverse current: max. 5 A
Voltage to earth: max. 150 V
Miscellaneous
Safety class: Safety class I (EN61010-1)
Mains supply: 115 V/230 V ± 10 %; 50/60 Hz
Mains Fuse: 115 V: 2 x 5 A slow blow 5 x 20 mm
230 V: 2 x 2.5 A slow blow 5 x 20 mm
Power consumption: max. 330 VA/250 W
Operating temperature: 0° to +40 °C
Storage temperature: –20 °C to +70 °C
Max. relative humidity: ‹ 80% (without condensation)
Dimensions (W x H x D): 285 x 90 x 389 mm
Weight: approx. 7.4 kg
Subject to change without notice.
Accessories supplied: Operator’s Manual and power cable
Optional accessories: HZ10 Silicone test leads, HZ42 19’’ Rackmount Kit 2RU
HM7042-5E/310505/ce · Subject to alterations · © HAMEG Instruments GmbH · ® Registered Trademark · DQS-certified in accordance with DIN EN ISO 9001:2000, Reg.-No.: DE-071040 QM
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel [phone] · Fax [phone] · www.hameg.com · [e-mail]
A Rohde & Schwarz Company
www.hameg.com

6Subject to change without notice
Front Panel
   VOLT Voltage display
  AMP. Current display
   LED Current limit indicator
ELECTRONIC FUSE Selector of functions
electronic fuse/current limit
LED will light if electronic fuse
function enabled
OUTPUT Switching ON/OFF of all channels
LED indicates status on
VOLTAGE/FINE Fine/coarse adjustment of output
voltage 0...32 V
Control Elements
Control Elements
VOLTAGE Adjustment of output voltage
0...5.5V
CURRENT Adjustment of current limit Imax of
both current limit and electronic
fuse threshold
0 – 32V / 2 A Safety terminals of the 32-V-out-
puts
0 – 5.5V / 5 A Safety terminals of the 5-V-output
Power button
Rear panel
Voltage selector Choice of mains voltage (115V/230V)
Power receptacle with line fuse

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams

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Layout and circuit diagrams