TONEOHM 550A OPERATOR MANUAL
viii
CONTENTS
DECLARATIONS............................................................................................................. i
ELECTROMAGNETIC COMPATIBILITY......................................................................ii
European Community Directive Conformance Statement.........................................ii
SAFETY......................................................................................................................... iii
WARNING ...................................................................................................................iii
GROUNDING ..............................................................................................................iii
POWER SUPPLY........................................................................................................iv
TONEOHM 550A OPERATION...................................................................................iv
CAUTIONS...................................................................................................................v
ENVIRONMENTAL OPERATING CONDITIONS .........................................................v
SPECIFICATIONS..........................................................................................................vi
ACCESSORIES..........................................................................................................vii
Standard Accessories..............................................................................................vii
SYMBOLS ..................................................................................................................vii
SECTION 1 – INTRODUCTION................................................................................... 1-1
THE TONEOHM 550A SHORTS LOCATOR............................................................1-1
1-1 Introduction to the TONEOHM 550A...............................................................1-1
1-2 Areas of application.........................................................................................1-1
SECTION 2 – GENERAL DESCRIPTION ................................................................... 2-1
PRINCIPLES OF OPERATION ................................................................................ 2-1
2-1 Locating short circuits...................................................................................... 2-1
2-2 TONEOHM 550A stimulus features ................................................................2-2
2-3 Controls, connectors and probes .................................................................... 2-2
Controls........................................................................................................... 2-2
RESISTANCE range switches..................................................................... 2-2
VOLUME control..........................................................................................2-2
Audio tone output.........................................................................................2-2
Connectors...................................................................................................... 2-2
Headphone socket.......................................................................................2-2
Probes............................................................................................................. 2-3
Needle probes .............................................................................................2-3
2-4 Rear Panel controls and connectors............................................................... 2-3
SECTION 3 – INSTALLATION AND SET-UP ............................................................. 3-1
PREPARATION FOR USE....................................................................................... 3-1
3-1 Unpacking .......................................................................................................3-1
3-2 Connecting the TONEOHM 550A to a power supply ...................................... 3-1
