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Manuals
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Megger Manuals
Test Equipment
LT320
User manual
Megger LT320 User Manual
Lt300 series, earth loop tester
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Contents
Table of Contents
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Table of Contents
Table of Contents
Safety Warnings
Introduction
General Description
Case Contents
LCD Display
Front Panel
Connection Panel
Lid Open/Closure
Preparations for Use
Batteries
Preliminary Test Lead Check
General Operating Instructions
Display Warning Symbols
Setup Procedure
Reverse Polarity or Line/Neutral Swapping
Test Leads
Test Lead Connection
LED Indicators
Loop Testing
Non-Tripping Loop Test [No Trip]
Hi Current Loop Test [Hi]
Phase-Earth Loop Impedance (Not at a Power Socket)
Phase-Neutral or Phase-Phase Loop Impedance
Prospective Fault Current Display [PFC]
Error Messages
Possible Sources of Error
Maxz (LT320 Only)
Deriving R1 + R2 (LT320 and LT330)
Voltage Measurement
Phase to Earth Voltage Measurement
Phase to Phase Voltage Measurement (LT320 and LT330)
Frequency Hz (LT320 and LT330)
Phase Sequence (LT320 and LT330)
Test Result Storage (LT330 Only)
Replacing Batteries and Fuses
Low Battery Warning Symbol
To Replace Batteries
Fuse Blown Indication
Auto Power down
Preventive Maintenance
Technical Specification
Basic and Service Errors
Accessories and Equipment
Repair and Warranty
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Quick Links
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General Description
2
Non-Tripping Loop Test [No Trip]
3
Loop Testing
4
Error Messages
5
Basic and Service Errors
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LT300 Series
Earth Loop Testers
USER MANUAL
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