Fluke 8060A Bedienungsanleitung

This manual pertains to instruments with serial number 6820XXX

or higher.

8060A

True-rms Multimeter

Instruction Manual

PN 609146

May 1997 Rev.3, 11/00

All product names are trademarks of their respective companies.

LIMITED WARRANTY & LIMITATION OF LIABILITY

Each Fluke product is warranted to be free from defects in material and workmanship

under normal use and service. The warranty period is one year and begins on the date

of shipment. Parts, product repairs and services are warranted for 90 days. This

warranty extends only to the original buyer or end-user customer of a Fluke authorized

reseller, and does not apply to fuses, disposable batteries or to any product which, in

Fluke’s opinion, has been misused, altered, neglected or damaged by accident or

abnormal conditions of operation or handling. Fluke warrants that software will operate

substantially in accordance with its functional specifications for 90 days and that it has

been properly recorded on non-defective media. Fluke does not warrant that software

will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to

end-user customers only but have no authority to extend a greater or different warranty

on behalf of Fluke. Warranty support is available if product is purchased through a

Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke

reserves the right to invoice Buyer for importation costs of repair/replacement parts

when product purchased in one country is submitted for repair in another country.

Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price,

free of charge repair, or replacement of a defective product which is returned to a Fluke

authorized service center within the warranty period.

To obtain warranty service, contact your nearest Fluke authorized service center or

send the product, with a description of the difficulty, postage and insurance prepaid

(FOB Destination), to the nearest Fluke authorized service center. Fluke assumes no

risk for damage in transit. Following warranty repair, the product will be returned to

Buyer, transportation prepaid (FOB Destination). If Fluke determines that the failure

was caused by misuse, alteration, accident or abnormal condition of operation or

handling, Fluke will provide an estimate of repair costs and obtain authorization before

commencing the work. Following repair, the product will be returned to the Buyer

transportation prepaid and the Buyer will be billed for the repair and return

transportation charges (FOB Shipping Point).

THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU

OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT

LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR

A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL,

INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES,

INCLUDING LOSS OF DATA, WHETHER ARISING FROM BREACH OF WARRANTY

OR BASED ON CONTRACT, TORT, RELIANCE OR ANY OTHER THEORY.

Since some countries or states do not allow limitation of the term of an implied

warranty, or exclusion or limitation of incidental or consequential damages, the

limitations and exclusions of this warranty may not apply to every buyer. If any

provision of this Warranty is held invalid or unenforceable by a court of competent

jurisdiction, such holding will not affect the validity or enforceability of any other

provision.

Fluke Corporation Fluke Europe B.V.

P.O. Box 9090 P.O. Box 1186

Everett, WA 98206-9090 5602 BD Eindhoven

U.S.A. The Netherlands

5/94

Safety Information

This meter has been designed and tested in accordance with IEC

Publication 348. To ensure that the meter is used safely, follow all safety

and operating instructions in this manual. If the meter is not used as

described in this manual, the safety features of the meter might be

impaired.

•Do not use the meter if the meter or test leads look damaged, or if you

suspect that the meter is not operating properly.

•Turn off power to the circuit under test before cutting, unsoldering, or

breaking the circuit. Small amounts of current can be dangerous.

•Do not apply more than 500V rms between a terminal and earth ground.

•Use caution when working above 60V dc or 30V ac rms. Such voltages

pose a shock hazard.

•When using the probes, keep your fingers behind the finger guards on

the probes.

•Disconnect the live test lead before disconnecting the common test lead.

Symbols

The following international symbols are used in this manual:

Important Safety Information in Manual

Diode Test

Ground

Fuse

Indicates Terminals At Which Dangerous Voltages May Exist

Battery

Table of Contents

Chapter Title Page

1 Introduction and Specifications............................................. 1-1

1-1. Introduction.............................................................................. 1-3

1-2. Items Furnished with Equipment............................................. 1-4

1-3. Specifications........................................................................... 1-4

2 Operating Instructions............................................................ 2-1

2-1. Introduction.............................................................................. 2-3

2-2. Unpacking Your Instrument .................................................... 2-3

2-3. Battery Installation or Replacement......................................... 2-3

2-4. Fuse Replacement.................................................................... 2-5

2-5. Physical Features ..................................................................... 2-6

2-6. Front Panel........................................................................... 2-6

2-7. Display................................................................................. 2-8

2-8. Signal Input Limits .................................................................. 2-9

2-9. Operation ................................................................................. 2-10

2-10. Power-On Self-Test ............................................................. 2-10

2-11. AC/DC Voltage (V)............................................................. 2-11

2-12. True rms Measurement .................................................... 2-12

2-13. AC-Coupled AC Measurements...................................... 2-12

2-14. Waveform Comparison and Conversion.......................... 2-13

2-15. High Impedance DC Voltage........................................... 2-14

2-16. AC/DC Current (A).............................................................. 2-16

2-17. Resistance (Ω)...................................................................... 2-18

2-18. Autoranging Megohms .................................................... 2-20

2-19. Autoranging Kilohms....................................................... 2-21

2-20. Conductance (S)................................................................... 2-22

2-21. Diode Test ( )................................................................... 2-25

2-22. Relative (REL)..................................................................... 2-27

2-23. Frequency (Hz).................................................................... 2-29

2-24. Decibel (dB)......................................................................... 2-32

2-25. dBV...................................................................................... 2-33

2-26. Continuity ( )........................................................... 2-34

2-27. Initial Check-Out Procedure.................................................... 2-36

8060A

Instruction Manual

3 Applications............................................................................. 3-1

3-1. Introduction .............................................................................. 3-3

3-2. Determining Amplifier Bandwidth........................................... 3-3

3-3. Using the 8060A as a Q-Meter................................................. 3-4

3-4. Measuring Amplifier Stage Gain with Relative dB.................. 3-5

3-5. General Audio Uses.................................................................. 3-6

3-6. Using the 8060A to Measure Extremely Low Currents ........... 3-7

3-7. Making dBm or dBW Measurements with Other Reference

Impedances............................................................................... 3-7

3-8. Changing AC dB Reference Impedances with a DC Source.... 3-9

4 Theory of Operation ................................................................ 4-1

4-1. Introduction .............................................................................. 4-3

4-2. Functional Description ............................................................. 4-3

4-3. Microcomputer ..................................................................... 4-4

4-4. Measurement Acquisition Chip (MAC) ............................... 4-5

4-5. A/D Conversion Cycle ......................................................... 4-6

4-6. Voltage Measurement........................................................... 4-8

4-7. Current Measurement........................................................... 4-10

4-8. Resistance Measurement ...................................................... 4-10

4-9. Conductance Measurement................................................... 4-11

4-10. Continuity Measurement ...................................................... 4-12

4-11. Frequency Measurement ...................................................... 4-13

5 Maintenance............................................................................. 5-1

5-1. Introduction .............................................................................. 5-3

5-2. Service Information.................................................................. 5-3

5-3. General Information ................................................................. 5-4

5-4. Handling Precautions for Using Static Sensitive Devices.... 5-5

5-5. Disassembly and Reassembly............................................... 5-5

5-6. Calibration and Backup Fuse Access ............................... 5-6

5-7. Main PCB Access............................................................. 5-8

5-8. LCD and Microcomputer PCB Disassembly and

Assembly.......................................................................... 5-9

5-9. Backup Fuse Replacement.................................................... 5-12

5-10. Cleaning................................................................................ 5-12

5-11. Performance Tests .................................................................... 5-13

5-12. Initial Procedure ................................................................... 5-13

5-13. Microcomputer and Display Test......................................... 5-13

5-14. Voltage Test.......................................................................... 5-13

5-15. Resistance Test..................................................................... 5-15

5-16. Continuity Test..................................................................... 5-16

5-17. Conductance Test ................................................................. 5-16

5-18. Current Test.......................................................................... 5-17

5-19. Diode Test ............................................................................ 5-18

5-20. Frequency Test ..................................................................... 5-18

5-21. Calibration Adjustment............................................................. 5-19

5-22. Troubleshooting........................................................................ 5-21

Contents

(continued)

iii

5-23. Self-Tests............................................................................. 5-21

5-24. Ratio Self-Test................................................................. 5-21

5-25. Switch Decoding Self-Test.............................................. 5-22

5-26. Troubleshooting Guide ........................................................ 5-23

6 List of Replaceable Parts........................................................ 6-1

6-1. Introduction.............................................................................. 6-3

6-2. How to Obtain Parts................................................................. 6-3

6-3. Manual Status Information ...................................................... 6-4

6-4. Newer Instruments................................................................... 6-4

6-5. Service Centers........................................................................ 6-4

7 Schematic Diagrams ............................................................... 7-1

8060A

Instruction Manual

List of Tables

Table Title Page

1-1. 8060A Specifications............................................................... 1-5

2-1. Controls, Indicators and Connectors........................................ 2-7

2-2. Input Overload Limits.............................................................. 2-10

2-3. Resistance Function Autoranges and Resolution..................... 2-20

2-4. Frequency Function Autoranges and Resolution..................... 2-30

2-5. Sensitivity for the Frequency Function.................................... 2-31

2-6. Maximum Input Voltages for the Frequency Function............ 2-31

3-1. Equivalent Voltage Levels for Modifying the Reference

Impedance................................................................................ 3-8

4-1. Voltage Input Divider.............................................................. 4-10

5-1. Required Test Equipment ........................................................ 5-4

5-2. Voltage Test............................................................................. 5-14

5-3. Resistance Test ........................................................................ 5-16

5-4. Current Test ............................................................................. 5-18

5-5. Frequency Test......................................................................... 5-18

5-6. Switch Decoding Self-Test...................................................... 5-23

5-7. Troubleshooting Guide............................................................ 5-24

5-8. Troubleshooting the Resistance Function: Voltage Sources

for Ranges................................................................................ 5-29

5-9. U3 (MAC) Pin Descriptions .................................................... 5-29

6-1. 8060A Final Assembly ............................................................ 6-5

6-2. A1 Main PCB Assembly.......................................................... 6-9

6-3. A3 Rms PCB Assembly........................................................... 6-13

8060A

Instruction Manual

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