ELECTRICAL SAFETY TESTER 
USER MANUAL 
 
 
 
 iii 
CONTENTS  PAGE 
1. 
 
PRODUCT INTRODUCTION............................................
1-1.Description…………………………..………………….
1-2.Features…………………………..……………………
 
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2
2. SPECIFICATION…………………………………………..
 
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3. PRECAUTIONS BEFORE OPERATION……...………...
3-1.Unpacking the instrument……..…………….………...
3-2.Safety notice………………..…………………..……….
3-3.Environment……………………………………..……..
 
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4. PANEL INTRODUCTION……………………..………….
4-1.Front Panel……………………………………………...
4-2.Rear Panel……………………………………….……...
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5. OPERATION METHOD……..……………………………
5-1.Main display LCD..…………………………………….
5-2.Prepare the EST for Use….……………………………
5-3.Structure of storage steps…..………………………….
5-4.Menu parameter setup…………………………………
5-5.Functionality of remote interface…………………… 
 
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6. MAINTENANCE………..………………………………….
6-1.Fuse rating and type.…………………………………...
6-2.Cleaning………………..………………………………..
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ELECTRICAL SAFETY TESTER 
USER MANUAL 
 
 
 
 iv
SAFETY TERMS AND SYMBOLS   
These terms may appear in this manual or on the product: 
 
WARNING. Warning statements identify condition or 
practices that could result in injury or loss of life. 
 
 
CAUTION. Caution statements identify conditions 
or practices that could result in damage to this 
product or other property. 
 
 
The equipment shall not be used for measurements 
within category II, III and IV. 
 
 
The following symbols may appear in this manual or on 
the product: 
 
     
  
   
DANGER  ATTENTION  Protective  Earth (ground)  Frame or   
High Voltage  refer to Manual  Conductor  Terminal  Chassis
  Terminal   Terminal