Vanguard DigiTMR User Manual
Page 3
REV 3 DIGITMR USER’S MANUAL
ii
TABLE OF CONTENTS
CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1
1.0
INTRODUCTION .................................................................................................................... 2
1.1
General Description and Features ................................................................................... 2
1.2
Operational Modes .......................................................................................................... 6
1.2.1.
Quick-Shot Mode ...................................................................................................... 6
1.2.2.
Time-versus-Travel Circuit Breaker Analyzer Mode ................................................. 6
1.3
Supplied Cables ................................................................................................................ 6
1.4
Technical Specifications ................................................................................................... 7
1.5
DigiTMR Controls and Indicators ..................................................................................... 8
2.0
PRE-TEST SETUP ................................................................................................................. 10
2.1
Operating Voltages ........................................................................................................ 10
2.2
Main Power Fuse ........................................................................................................... 10
2.3
LCD Screen Contrast Control .......................................................................................... 10
2.4
Printer Paper Control ..................................................................................................... 11
2.5
Printer Paper .................................................................................................................. 11
3.0
OPERATING PROCEDURES ................................................................................................. 12
3.1
DigiTMR Cable Connections ........................................................................................... 12
3.1.1.
Contact Cable Connections .................................................................................... 12
3.1.2.
Initiate Cable Connections ..................................................................................... 13
3.1.3.
Analog and Digital Voltage Monitor Connections .................................................. 15
3.1.5.
AC Current Sensor Connection ............................................................................... 17
3.1.6.
Transducer Connection .......................................................................................... 18
3.2
General Procedures ....................................................................................................... 19
3.3
Timing Breakers in Quick-Shot Mode ............................................................................ 19
3.4
Timing Breakers in Time-Travel Mode ........................................................................... 20
3.5
Performing Timing Tests ................................................................................................ 21
3.5.1.
Timing an OPEN Operation With No Insertion Resistors ....................................... 21
3.5.2.
Timing an OPEN Operation WITH Insertion Resistors ............................................ 24
3.5.3.
Timing a CLOSE-OPEN Operation Using Contact Channel #1 ................................. 26
3.5.4.
Timing an OPEN-CLOSE-OPEN Operation ............................................................... 28
3.6
Performing Diagnostic Tests .......................................................................................... 30
3.6.1.
Performing a Slow-Close Test ................................................................................. 30
3.6.2.
Performing a Transducer Self-Test ......................................................................... 32
3.6.3.
Checking Cable Hookups ........................................................................................ 33
3.7
Printing Test Results ...................................................................................................... 34
3.7.1.
Printing the Tabulated Test Results ....................................................................... 34
3.7.2.
Printing the Graphic Test Results ........................................................................... 37
3.8
Working with Timing Shots ............................................................................................ 43
3.8.1.
Saving Timing Shots in the DigiTMR’s EEPROM ..................................................... 43
3.8.2.
Printing a Timing Shot Directory of Shots Stored in the EEPROM ......................... 45
3.8.3.
Recalling a Timing Shot From the DigiTMR’s EEPROM .......................................... 47