Fluke 87 V/AN Manuals

Fluke 87 V/AN Manuals

Manuals and User Guides for Fluke 87 V/AN. We have 1 Fluke 87 V/AN manual available for free PDF download: Service Manual

Fluke 87 V/AN Service Manual

Fluke 87 V/AN Service Manual (50 pages)

Brand: Fluke | Category: Multimeter | Size: 1 MB

Table of Contents

Table of Contents
3
Introduction
9
Contacting Fluke
9
Unpacking the Meter
10
- Inspection
  10
- Inspection Interval
  10
Preparations for Use
10
Precautions and Safety Information
10
Electrical Symbols
12
Specifications
13
- General Specifications
  13
- Detailed Specifications
  13
Theory of Operation
17
- Functional Block Diagram
  17
- Power Supply and Voltage Reference
  18
- Function Selection and Overload Protection
  19
- Analog Signal Conditioning
  21
  - Vac
    21
  - VDC
    22
  - MVDC
    22
  - Temperature
    22
  - Ohms below the 6 MΩ Range
    22
  - Ohms in the 6 MΩ & 50 MΩ Range and Siemens in the 60 Ns Range
    23
  - Continuity in All Ohms and the Siemens Ranges
    23
  - Capacitance
    23
  - Diode Test
    23
  - Ma, Μa and AAC
    23
  - Ma, Μa and ADC
    24
- Active Filter
  24
- 800 Hz Low Pass Filter
  24
- RMS to DC Converter
  24
- Analog to Digital Converter
  25
- Secondary Analog Circuits
  25
- Keypad
  25
- Microprocessor & Support Circuits
  26
- Lcd
  26
- Backlight
  26
- Beeper
  26
Troubleshooting
27
- Restoration Actions
  27
Basic Maintenance
27
- Cleaning the Meter
  27
- Opening the Meter Case
  28
- Accessing the PCA and Replacing the LCD
  29
- Reassembling the Meter Case
  30
- Replacing the Battery
  30
- Testing Fuses and Current Circuitry
  30
- Replacing the Fuses
  31
Required Equipment
32
Performance Tests
32
- Basic Operability Tests
  33
- Testing the Fuses
  33
- Testing the Display
  33
- Testing the Pushbuttons
  35
- Testing Meter Accuracy
  35
Calibration Adjustment
37
Service and Parts
41
Schematic Diagrams
46

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