User Manuals: Polar Instruments TONEOHM 850A Device

User Manuals: Polar Instruments TONEOHM 850A Device

Manuals and User Guides for Polar Instruments TONEOHM 850A Device. We have 1 Polar Instruments TONEOHM 850A Device manual available for free PDF download: Operator's Manual

Polar Instruments TONEOHM 850A Operator's Manual

Polar Instruments TONEOHM 850A Operator's Manual (60 pages)

Brand: Polar Instruments | Category: Industrial Equipment | Size: 3 MB

Table of Contents

Declarations

5
Safety

6
- Warning
  6
- Power Supply
  7
Specifications

8
- Environmental Operating Conditions
  8
- Symbols
  9
- Table of Contents
  11
Section 1 - Introduction

14
- Introduction to the Toneohm 850A
  14
  - Using the TONEOHM 850A to Locate Short Circuits
    14
    
    TONEOHM 850A Applications
    14
    
    TONEOHM 850A Display Mechanisms
    14
Section 2 - Description

16
- Locating Short Circuits with the Toneohm 850A
  16
  - TONEOHM 850A Shorts Locating Modes
    16
    
    Milliohmmeter
    16
    
    Track Voltage
    16
    
    Current Tracer
    16
  - Controls, Connectors and Probes
    16
    
    Controls
    16
    
    RESISTANCE Range Switches
    16
    
    TRACK VOLTAGE Range Switches
    17
    
    DRIVE SOURCE Control
    17
    
    VOLUME Control
    17
    
    Audio Tone Output
    17
    
    Connectors
    17
    
    Headphone Socket
    17
    
    Current Trace Probe and Drive Source Leads
    17
    
    Needle Probes
    18
  - Rear Panel Controls and Connectors
    18
  - Mode and Range Selection
    18
Section 3 - Installation and Set-Up

20
- Preparation for Use
  20
  - Unpacking
    20
  - Connecting the TONEOHM 850A to a Power Supply
    20
Section 4 - Milliohmmeter

22
- Locating Solder and Land Bridges
  22
  - Low Resistance) Shorts
    22
    
    Tracing Faults on Double Sided Boards
    22
Section 5 - Track Voltage

24
- Using Track Voltage to Locate Loading Faults
  24
  - TRACK VOLTAGE Shorts Locating Mode
    24
    
    Static Faults
    24
    
    Excessive VCC Loads
    24
    
    Dynamic Faults
    25
Section 6 - Current Tracing

28
- Non-Contact Current Tracing
  28
  - Using the 850A Drive Source
    28
    
    Connection and Sensitivity Adjustment
    29
  - Operation
    29
    
    Board Sectoring
    29
    
    Bus Faults (Stuck Nodes)
    30
    
    Edge Connectors
    32
    
    Faulty Decoupling Capacitors
    33
Section 7 - Simple Maintenance and Cleaning

34
- Cleaning
  34
- Technical Support
  34

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