Vanguard WRM-40 User Manual
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REV 3 WRM-10P AND WRM-40 USER’S MANUAL
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TABLE OF CONTENTS
CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1
1.0
INTRODUCTION .................................................................................................................... 2
1.1
General Description and Features ................................................................................... 2
1.2
Technical Specifications ................................................................................................... 4
1.2.1.
WRM-10P Technical Specifications .......................................................................... 4
1.2.2.
WRM-40 Technical Specifications ............................................................................ 5
1.3
WRM Controls and Indicators .......................................................................................... 6
2.0
PRE-TEST SETUP ................................................................................................................. 10
2.1
Operating Voltages ........................................................................................................ 10
2.2
LCD Screen Contrast Control .......................................................................................... 12
2.3
Printer Paper Control ..................................................................................................... 12
2.4
Printer Paper .................................................................................................................. 12
2.5
Replacing the Thermal Printer Paper ............................................................................. 13
3.0
OPERATING PROCEDURES ................................................................................................. 14
3.1
WRM Cable Connections ............................................................................................... 14
3.2
General Procedures ....................................................................................................... 16
3.3
Entering Test Record Header Information ..................................................................... 17
3.4
Performing a Resistance Test ......................................................................................... 20
3.5
Performing a Load Tap Changer / Voltage Regulator Resistance Test .......................... 29
3.6
Performing a Special Resistance Test ............................................................................ 36
3.7
Performing a Transient Test .......................................................................................... 41
3.8
Performing a Diagnostic Test ......................................................................................... 44
3.9
Working with Test Records ............................................................................................ 45
3.9.1.
Restoring a Test Record for Review or Printing ..................................................... 45
3.9.2.
Reviewing or Printing a Restored Test Record ....................................................... 48
3.9.3.
Printing a Test Record Directory ............................................................................ 49
3.9.4.
Erasing Test Records ............................................................................................... 51
3.10
Enabling the Computer Interface .................................................................................. 53
3.11
Setting the Date and Time ............................................................................................. 54
4.0
WRM-10P/40 SPECIAL FEATURES ...................................................................................... 55
4.1
Bypassing Resistance Reading Delay ............................................................................. 55
4.2
Converting Resistance Measurements .......................................................................... 56
5.0
Troubleshooting Guide ...................................................................................................... 57