4
Table of Contents
Section 1 .......................................................................................................................................6
Introduction and Safety ..................................................................................................6
An Introduction to Dielectric Withstand Testing with the HT-S .....................6
Safety Precautions ...........................................................................................6
Test Personnel .................................................................................................7
Testing Area ....................................................................................................7
Safety Techniques............................................................................................7
Safety Markings ...............................................................................................8
Using the HT-S Dielectric Withstand Tester .................................................................9
Ground Continuity ...........................................................................................9
Ground Continuity Failures ...............................................................9
Defeating the Ground Continuity ......................................................9
Leakage Test ....................................................................................................10
Sporadic Leakage Current Failures ...................................................10
Chronic Leakage Current Failures .....................................................10
High Voltage Dielectric Withstand Test ..........................................................11
High Voltage Dielectric Withstand Test Failures ..............................11
High Voltage Discharge ....................................................................11
Testing Equipment with non-Standard Plugs or Pigtail Operation ..................11
Section 2 .......................................................................................................................................12
Specifications and Controls ...........................................................................................12
Introduction .....................................................................................................12
Front Panel Features ........................................................................................14
Front Panel Features ........................................................................................17
Options ............................................................................................................19
Isolation Relay Interface (PN:00-RI) ................................................19
Interlock (PN:00-XI) .........................................................................19
Section 3 .......................................................................................................................................20
Operating Instructions ....................................................................................................20
Setting up your Tester ......................................................................................20
AC Line Voltage Requirements .......................................................................20
Fuse Replacement ............................................................................................21
Initial Checkout Procedure ..............................................................................21
High Voltage Performance Test ......................................................................21
Ground Continuity Performance Test ..............................................................21
Excess Leakage Performance Test ..................................................................22
Hipot Breakdown Performance Test ................................................................22
Setting up the HT-S for Production Line Testing ............................................23
Factory Settings ...............................................................................................23
Display Setting Limits for Leakage, Time and Ground Continuity .................24
Adjustment of the High Voltage Level ............................................................24
Adjustment of the High Voltage Test Time .....................................................24
Adjustment of the Leakage Current Level .......................................................24
Adjustment of High Voltage Ramp Time ........................................................25
Setting the Ground Check Switch ....................................................................25
Adjustment of the Ground Continuity Limit ...................................................25
Adjustment of Ground Continuity Offset ........................................................26
Ground Continuity Resistance Measurement ..................................................27
Operation Techniques ......................................................................................27
Testing .............................................................................................................27
Testing a Device with 3-Wire Power Supply Cord..........................................28
Testing a Device with 2-Wire Power Supply Cord..........................................29
Section 4 .......................................................................................................................................30
