Manuali utente per Fluke 5725A

Sommario

• 5725A Intruction Manual

  1
  • LIMITED WARRANTY AND LIMITATION OF LIABILITY

    2
  • Table of Contents

    3
  • List of Tables

    7
  • List of Figures

    9
  • Interference Information

    11
  • OPERATOR SAFETY SUMMARY

    13
    • Symbols Marked on Equipment

      14
    • Power Source

      14
    • Use the Proper Fuse

      14
    • Grounding the 5725A

      14
    • Use the Proper Power Cord

      14
    • Do Not Operate in Explosive Atmospheres

      14
    • Do Not Remove Cover

      14
    • Do Not Attempt to Operate if Protection May be Impaired

      14
  • SERVICING SAFETY SUMMARY

    15
    • Do Not Service Alone

      15
    • Use Care When Servicing With Power On

      15
  • FIRST AID FOR ELECTRIC SHOCK

    16
• 1. Introduction and Specifications

  17
  • Introduction

    19
  • Where to Go From Here

    20
  • How to Use the Manuals

    21
    • 5725A Getting Started Manual

      21
    • 5725A Instruction Manual

      21
    • 5700A/5720A Series II Manual Set

      21
    • 5700A/5720A Series II Operator Manual

      21
    • 5700A/5720A Series II Operator Reference Guide

      21
    • 5700A/5720A Series II Remote Programming Reference Guide

      22
    • 5700A/5720A Series II Service Manual

      22
  • Specifications

    22
  • DC Voltage Specifications

    23
  • AC Voltage Specifications

    26
  • Resistance Specifications

    32
  • DC Current Specifications

    36
  • AC Current Specifications

    39
  • Wideband AC Voltage (Option 5700-03) Specifications

    44
  • General Specifications

    45
• 2. Installation

  47
  • Introduction

    49
  • Unpacking and Inspection

    49
  • Service Information

    51
  • Placement and Rack Mounting

    51
  • Cooling Considerations

    51
  • Connecting to the 5700A Calibrator

    52
  • Selecting Line Voltage

    53
  • Accessing the Fuse

    54
  • Connecting to Line Power

    55
• 3. Operating Notes

  57
  • Introduction

    59
  • Front Panel Features

    60
  • Rear Panel Features

    62
  • Turning on the 5725A Amplifier

    64
  • Warm Up

    64
  • 5725A Operating Functions and Modes

    65
    • Standby

      65
    • Voltage Standby

      66
    • Current Standby

      67
    • Voltage Operate

      68
    • Current Operate

      69
  • Conditions That Activate the 5725A

    70
• 4. Theory of Operation

  71
  • Introduction

    73
  • Overall Functional Description

    73
    • 1100V AC Range Functional Description

      75
    • 11A Range Functional Description

      76
      • Operation in the 11A DC Range

        77
      • Operation in the 11A AC Range

        77
    • Voltage and Current Standby Modes

      77
      • Voltage Standby

        77
      • Current Standby

        77
    • How the 5700A and 5725A Communicate

      78
      • Description of the Out-Guard Lines (5725A Side)

        78
      • Description of the In-Guard Lines

        79
    • Functional Summaries by Assembly

      80
  • Detailed Circuit Description

    81
    • Interconnect Assembly (A1)

      81
    • Power Supply Assembly (A4)

      82
      • High Voltage Supply Section

        83
      • Switching Section

        84
      • Current-Limit Section

        85
      • System Supply Section

        85
      • Fan Supply Section

        86
    • Digital Assembly (A5)

      86
      • Microcomputer

        86
      • External RAM.

        86
      • External ROM

        86
      • EEROM

        88
      • Data Latch

        88
      • Strobe Lines

        88
      • Led Driver

        88
      • Optoisolator Link

        88
      • Break-Detect Circuitry

        89
      • Power Up and Reset Circuitry

        89
      • Watchdog Timer

        89
    • Current Amplifier Assembly (A2)

      89
      • Error Amplifier Section

        91
      • Output Stage Section

        92
      • Monitor Section

        92
      • Control and Switching Section

        93
      • Power Supply Section

        93
    • High Voltage Amplifier (A3)

      94
      • Input Amplifier

        94
      • Integrator

        96
      • Window Comparator

        96
      • Input Clamp

        96
      • Transconductance and Cascode Stage

        97
      • Midstage

        97
      • Midstage -400V Filter

        97
      • High Voltage Heat Sink Assemblies

        97
      • Autobias Current Source

        98
      • Autobias Sense Circuit

        98
    • High Voltage Sense Assembly (A6)

      100
• 5. Calibration and Verification

  109
  • Introduction

    111
  • Where to Find Further Information

    111
• Static Awarenss

  113
• 6. Maintenance

  115
  • Introduction

    117
  • Replacing the Fuse

    117
  • Cleaning the Air Filter

    118
  • General Cleaning

    119
  • Cleaning PCA's

    119
  • Access Procedures

    120
    • Initial Access Procedure

      121
    • Accessing the Power Supply Assembly (A4)

      123
    • Accessing the Digital Assembly (A5)

      123
    • Accessing the Current Amplifier Assembly (A2)

      125
    • Accessing the High Voltage Amplifier (A3)

      126
    • Accessing the High Voltage Sense Assembly (A6)

      127
    • Accessing the High Voltage Output Transistors

      128
    • Accessing the Interconnect Assembly (A1)

      128
  • Enabling Front or Rear Binding Posts

    129
• 7. Troubleshooting

  131
  • Introduction

    133
  • 5725A Fault Codes

    133
  • Self Diagnostics

    133
  • Manual Tests for Fault Isolation

    136
    • Problems 1 or 2: Fault at Power-Up or When Entering Voltage Standby

      137
    • Problem 3: Fault When Entering Voltage Operate

      138
    • Problem 4: Fault When Entering Current Standby

      138
    • Problem 5: Fault When Entering Current Operate

      138
  • Reduced-Voltage Troubleshooting Mode

    138
  • Testing the Power Supply By Itself

    139
• 8. List of Replaceable Parts

  141
  • Introduction

    143
  • How to Obtain Parts

    143
  • Manual Status Information

    143
  • Newer Instruments

    143
  • Service Centers

    143
  • Parts Lists

    144
• 9. Schematic Diagrams

  181
• Index

  205