Hameg HM8012 Multimeter - Service manual 电路图.pdf

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1、Service-Manual 4 - D i g i t M u l t i m e t e r H M 8 0 1 2 RadioFans.CN 收音机爱 好者资料库 2 Subject to change without notice General information regarding the CE marking HAMEG instruments fulfi ll the regulations of the EMC directive. The conformity test made by HAMEG is based on the actual generic- and

2、product standards. In cases where different limit values are applicable, HAMEG applies the severer standard. For emission the limits for residential, commercial and light industry are applied. Regarding the immunity (susceptibility) the limits for industrial environment have been used. The measuring

3、- and data lines of the instrument have much infl uence on emmission and immunity and therefore on meeting the acceptance limits. For different applications the lines and/or cables used may be different. For measurement operation the following hints and conditions regarding emission and immunity sho

4、uld be observed: 1. Data cables For the connection between instruments resp. their interfaces and external devices, (computer, printer etc.) suffi ciently screened cables must be used. Without a special instruction in the manual for a reduced cable length, the maximum cable length of a dataline must

5、 be less than 3 meters 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 HAMEG are suitable. 2.

6、 Signal cables Basically test leads for signal interconnection between test point and instrument should be as short as possible. Without instruction in the manual for a shorter length, signal lines must be less than 3 meters and not be used outside buildings. Signal lines must screened (coaxial cabl

7、e - RG58/U). A proper ground connection is required. In combination with signal generators double screened cables (RG223/U, RG214/U) must be used. 3. Infl uence on measuring instruments. Under the presence of strong high frequency electric or magnetic fi elds, even with careful setup of the measurin

8、g equipment an infl uence of such signals is unavoidable. This will not cause damage or put the instrument out of operation. Small deviations of the measuring value (reading) exceeding the instruments specifi cations may result from such conditions in individual cases. HAMEG Instruments GmbH Die HAM

9、EG Instruments GmbH bescheinigt die Konformitt fr das Produkt The HAMEG Instruments GmbH herewith declares conformity of the product HAMEG Instruments GmbH dclare la conformite du produit Bezeichnung / Product name / Designation: Multimeter / Multimeter / Multimtre Typ / Type / Type: HM8012 mit / wi

10、th / avec: Optionen / Options / Options: mit den folgenden Bestimmungen / with applicable regulations / avec les directives suivantes EMV Richtlinie 89/336/EWG ergnzt 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 amende par 91/263/EWG,

11、 92/31/CEE Niederspannungsrichtlinie 73/23/EWG ergnzt durch 93/68/EWG Low-Voltage Equipment Directive 73/23/EEC amended by 93/68/EEC Directive des equipements basse tension 73/23/CEE amende par 93/68/CEE Angewendete harmonisierte Normen / Harmonized standards applied / Normes harmonises utilises Sic

12、herheit / Safety / Scurit EN 61010-1:2001 (IEC 61010-1:2001) berspannungskategorie / Overvoltage category / Catgorie de surtension: II Verschmutzungsgrad / Degree of pollution / Degr de pollution: 2 Elektromagnetische Vertrglichkeit / Electromagnetic compatibility / Compatibilit lectromagntique Hers

13、teller HAMEG Instruments GmbH KONFORMITTSERKLRUNG Manufacturer Industriestrae 6 DECLARATION OF CONFORMITY Fabricant D-63533 Mainhausen DECLARATION DE CONFORMITE EN 61326-1/A1 Straussendung / Radiation / Emission: Tabelle / table / tableau 4; Klasse / Class / Classe B. Strfestigkeit / Immunity / Imun

14、itee: Tabelle / table / tableau A1. EN 61000-3-2/A14 Oberschwingungsstrme / Harmonic current emissions / missions 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

15、 /Date 22.07.2004 Unterschrift / Signature /Signatur G. Hbenett Produktmanager General information regarding the CE marking RadioFans.CN 收音机爱 好者资料库 3 Subject to change without notice Content Declaration of Conformity 2 General information regarding the CE-marking 2 4 Digit Programmable Multimeter HM

16、8012 4 Specifi cations 5 Control elements 6 Function test 7 Calibration 8 Circuit and layout diagrams 9 RadioFans.CN 收音机爱 好者资料库 4 Subject to change without notice HM8012 4 -digit display with 50,000 counts, basic accuracy 0.05% Automatic and manual range selection Max. resolution 10V, 0.01dBm, 10nA,

17、 10m, 0.1 C/ F Offset function / relative value measurement in basic measurement functions Input impedance 1G (0.5V and 5V DC range) RS-232 interface PC software for control and data logging Mainframe HM8001-2 required for operation 34 4 - D i g i t P r o g r a m m a b l e M u l t i m e t e r H M 8

18、0 1 2 34 WDM8012 Software (included) HZ15 (included) WDM8012 Software (included) 5 Subject to change without notice Specifications 4 -Digit programmable Multimeter HM8012 Valid at 23 C after a 30 minute warm-up period DC voltage Measurement ranges:500mV, 5V, 50V, 500V, 600V Resolution:10V, 100V, 1mV

19、, 10mV, 100mV Accuracy: 5V, 500V, 600V:(0.05% of reading +0.002% of full scale) 500mV, 50V: (0.05% of reading + 0.004% of full scale) Overload protection: V/T/dB/to COM and to chassis: 850Vpat max. 60Hz or 600VDC COM against chassis:250Vrmsat max. 60Hz or 250VDC Input resistance: 50V, 500V, 600V:10M

20、 II 90pF 500mV, 5V:1G II 90pF Input current: 10A CMRR1): 100dB (50/60Hz 0.5%) SMRR2): 60dB (50/60Hz 0.5%) dB Mode Accuracy:(0.02dB+2 digits) (display -38.7dBm) Resolution: 0.01dB above 18% of rating DC current Measurement ranges:500A, 5mA, 50mA, 500mA, 10A Resolution:10nA, 100nA, 1A, 10A, 1mA Accura

21、cy: 0.5-500mA: (0.2% of reading + 0.004% of full scale) 10A: (0.3% of reading + 0.004% of full scale) Voltage drop: 10A range:0.2V max. 500mA range:2.5V max. other ranges:0.7V max. AC voltage Measurement ranges:500mV, 5V, 50V, 500V, 600V Resolution: 10V, 100mV, 1mV, 10mV, 100mV Accuracy 0.5-50V: 40H

22、z-5kHz: (0.4% of reading + 0.07% of full scale) 20Hz-20kHz: (1% of reading + 0.07% of full scale) Accuracy 500V and 600V: 40Hz-1kHz: (0.4% of reading + 0.07% of full scale) 20Hz-1kHz: (1% of reading + 0.07% of full scale) Overload protection: V/T/dB/to COM and to chassis: 850Vpat max. 60Hz or 600VDC

23、 COM against chassis:250Vrmsat max. 60Hz or 250VDC Input impedance AC mode: 1M II 90pF AC + DC mode:10M II 90pF Bandwidth at 3dB: 80kHz typical dB mode: 20Hz - 20kHz Accuracy 23.8dBm to 59.8dBm:0.2dBm Resolution:0.01dB above 9mV CMRR1): 60dB (50/60Hz 0.5%) Crest factor: 7 max. 34 AC current Measurem

24、ent ranges:500A, 5mA, 50mA, 500mA, 10A Resolution:10nA, 100nA, 1A, 10A, 1mA Accuracy: 0.5 - 500mA:(0.7% of reading + 0.07% of f.s.)40Hz - 5kHz 10A: (1% of reading + 0.07% of full scale) AC + DC measurements As shown for AC + 25 digits Resistance Measurement ranges:500, 5k, 50k, 500k, 5M, 50M Resolut

25、ion: 10m, 100m, 1, 10, 100, 1k Accuracy: 500 to 500k:(0.05% of reading + 0.004% of f.s.+50m) 5M to 50M: (0.3% of reading + 0.004% of full scale) Input protection max. 300Vrms Measurement current:500-5k range:1mA 50k range:100A 500k range:10A 5-50M range:100nA Measurement voltage: 10V typical for ope

26、n inputs, depending on the value of resistance to be measured. Negative polarity of measurement voltage is across common terminal. Temperature 2-wire resistance measurement with linearization for PT100 sensors as per standard EN60751 Range: 200C to +500C Resolution: 0.1C Measurement current: approx.

27、 1mA Display: in C, F Accuracy: 0.1C from 200C to + 200C 0.2C from 200C to 500C (exception: sensor tolerance) Temperature coefficient: (reference 23C) V = 500mV, 50V30ppm/C 600V range80ppm/C other ranges20ppm/C V 600V range80ppm/C other ranges50ppm/C mA all ranges200ppm/C mAall ranges300ppm/C 5M, 50

28、M ranges 200ppm/C other ranges50ppm/C Miscellaneous Power supply (from mainframe): + 5V300mA 26V140mA Operating temperature: + 10C to + 40C Max. relative humidity:80% (without condensation) Dimensions ( W x H x D) (without 22-pole flat plug): 135 x 68 x 228mm Weight:approx. 0.5kg 1)Common mode rejec

29、tion ratio2)Serial mode rejection ratio Accessories supplied: Operators Manual, HZ15 PVC test leads, HM8012: + Software CD and interface cable Optional accessories: HZ10 Silicone test leads, HZ812 PT100 Temperature Sensor HM8012E/140705/ce Subject to alterations HAMEG Instruments GmbH Registered Tra

30、demark DQS-certified in accordance with DIN EN ISO 9001:2000, Reg.-No.: DE-071040 QM HAMEG Instruments GmbH Industriestr. 6 D-63533 Mainhausen Tel +49(0)6182 8000 Fax +49(0)6182 800100 A Rohde in case it is correct no calibration will be necessary. Pressing AUTO again will return the in- strument to

31、 the menu. Pressing either ? or ? the next or the last calibration step will be accessed. For precise resistance calibration it is necessary to connect the calibration resistors as closely to the input terminals as possible. Pressing the AC/DC pushbutton will store the calibrated values. Listing of

32、calibration steps (*) Wait for complete stabilization of the display. Calibration of frequency compensation While observing the necessary safety precautions open the in- strument. Select the 50 V AC range. Apply 25 V AC 15 kHz. Adjust the capacitor CV1 until the display reads 25,000 5 digits. 9 Subj

33、ect to change without notice Circuit and layout diagrams 10 Subject to change without notice Circuit and layout diagrams 11 Subject to change without notice Circuit and layout diagrams 12 Subject to change without notice Circuit and layout diagrams 13 Subject to change without notice Circuit and lay

34、out diagrams 14 Subject to change without notice Circuit and layout diagrams 15 Subject to change without notice Circuit and layout diagrams 16 Subject to change without notice Circuit and layout diagrams 17 Subject to change without notice Circuit and layout diagrams 18 Subject to change without no

35、tice Circuit and layout diagrams 19 Subject to change without notice Circuit and layout diagrams 20 Subject to change without notice Circuit and layout diagrams 21 Subject to change without notice Circuit and layout diagrams 22 Subject to change without notice Circuit and layout diagrams 23 Subject

36、to change without notice Circuit and layout diagrams 24 Subject to change without notice Circuit and layout diagrams 25 Subject to change without notice Circuit and layout diagrams 26 Subject to change without notice Notes 27 Subject to change without notice Notes w w w . h a m e g . d e authorized

37、dealer Oscilloscopes Spectrum Analyzer Power Supplies Modular System 8000 Series Programmable Instruments 8100 Series Subject to change without notice 4S-8012-00E0 / 02-11-2005-gw HAMEG Instruments GmbH HAMEG Instruments GmbH Industriestrae 6 A Rohde & Schwarz Company D-63533 Mainhausen registered trademark Tel +49 (0) 61 82 800-0 DQS-Certifi cation: DIN EN ISO 9001:2000 Fax +49 (0) 61 82 800-100 Reg.-Nr.: 071040 QM saleshameg.de 4S-8012-00E0