4
Contents
1. INTRODUCTION ............................................................................... 6
1.1
General Description ........................................................................... 6
1.2
Overload Protection ............................................................................ 6
1.3
Internal Batteries ................................................................................ 7
1.4
Overload Circuit Test .......................................................................... 7
1.5
Printed Circuit ..................................................................................... 8
1.6
Phenolic Case .................................................................................... 8
1.7
Adjust-A-Vue Handle .......................................................................... 8
1.8
Test Leads .......................................................................................... 8
1.9
Technical Data .................................................................................... 8
1.10 Definition of Accuracy .......................................................................10
1.11 Safety Considerations ......................................................................10
1.12 Audio Alarm ......................................................................................10
1.13 Accessory AC High Voltage Probe ...................................................11
1.14 Amp-Clamp Model 150-2 .................................................................11
2. INSTALLATION ................................................................................ 11
2.1
Unpacking and Inspection ...............................................................11
2.2
Warranty ...........................................................................................11
2.3
Shipping ...........................................................................................12
2.4
Power Source Requirements ...........................................................12
2.5
Operating Position ............................................................................12
3. CONTROLS, JACKS, AND INDICATORS ........................................ 12
3.1
Front Panel Description ....................................................................12
4. OPERATION .................................................................................... 14
4.1
Safety Precautions ...........................................................................14
4.2
Polarity Reversing ............................................................................15
4.3
Measurement of Unknown Voltage or Current ................................. 15
4.4
Test Leads ........................................................................................16
4.5
DC Voltage Measurement ................................................................16
4.5.1
DC Voltage Measurement 0-250 mV Range .................................... 16
4.5.2
DC Voltage Measurement 0-1V Range .............................................. 16
4.5.3
DC Voltage Measurement 0-2.5 Through 0-250V Range ................. 17
4.5.4
DC Voltage Measurement 0-500V Range ......................................... 17
4.5.5
DC Voltage Measurement 0-1000V Range ....................................... 18
4.6
AC Voltage Measurement .................................................................18
4.6.1
AC Voltage Measurement 0-2.5 Thru 0-250V Range ........................ 19
4.6.2
AC Voltage Measurement 0-500V Range .......................................... 20
4.6.3
AC Voltage Measurement 0-1000V Range ........................................ 20
4.7
Output Voltage Measurement ...........................................................21
4.8
Decibel Measurement (-20 To +50 dB) ............................................22
4.9
Direct Current Measurement ............................................................23
4.9.1
Direct Current Measurement 0-50
μ
A Range .................................... 23
4.9.2
Direct Current Measurement 0-1mA Through 0-500mA Range ...... 23
4.9.3
Direct Current Measurement 0-10A Range ...................................... 24
4.10 Resistance Measurements ...............................................................25
4.11 Measuring Resistance .....................................................................25
4.12 Resistance Measurement of Semiconductors ................................. 25
4.13 Continuity Tests .................................................................................26
5. OPERATOR MAINTENANCE .......................................................... 27
5.1
Inspection .........................................................................................27
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