Vanguard CT-7500 - Manual (Page 2)

MODEL CT-7500 OPERATING INSTRUCTIONS
TABLE OF CONTENTS
1.0 INTRODUCTION…. ….. ............ ...... ............. ............ ............. ............. ............ .............…… … 1
2.0 CT-7500 DESCRIPTION ............ ...... ............. ............ ............. ............. ............ ............. .............1
2.1 On-Line Timing (Quick-Shot) Mode.......... ............ ............. ............. ............ ............. .............1
2.2 Time-Versus-Travel Circuit Breaker Analyzer Mode .......... ............. ............ ............. .............1
2.2.1 Contact Timing Channels . ............. ............ ............. ............. ............ ............. .............2
2.2.1 Analog Voltage Monitoring Channel............ ............. ............. ............ ............. ............. ............ 2
2.2.3 Digital Voltage Monitoring Channel ............ ............. ............. ............ ............. .............2
2.2.4 Trip/Close Current Monitoring......... ............ ............. ............. ............ ............. .............2
2.2.5 Travel Transducer Input Channels . ............ ............. ............. ............ ............. .............2
2.2.6 Breaker Initiate Capability . ............. ............ ............. ............. ............ ............. .............2
2.2.7 Built-In Thermal Printer ..... ............. ............ ............. ............. ............ ............. .............3
2.2.8 Printer Port .... ............ ...... ............. ............ ............. ............. ............ ............. .............3
2.2.9 Computer Interface Capabilities ..... ............ ............. ............. ............ ............. .............3
2.2.10 Timing Shots Storage Capabilities ............ ............. ............. ............ ............. .............3
2.2.11 Breaker Test Plan Storage Abilities............ ............. ............. ............ ............. .............3
2.2.12 Diagnostic Capabilities..... ............. ............ ............. ............. ............ ............. .............3
2.2.13 CT-7500 Display Control Switches ............ ............. ............. ............ ............. .............4
3.0 TEST RESULTS TABULATION.. ...... ............. ............ ............. ............. ............ ............. .............4
3.1 Electrical Measurement Results . ............. ............ ............. ............. ............ ............. .............4
3.2 Mechanical Measurement Results ........... ............ ............. ............. ............ ............. .............4
3.3 Analog Voltage Input Results ..... ............. ............ ............. ............. ............ ............. ............. ............ 4
3.4 Digital Voltage Input Results ...... ............. ............ ............. ............. ............ ............. .............5
3.5 Initiate Current Results......... ...... ............. ............ ............. ............. ............ ............. .............5
3.6 Slow-Close Test ...... ............ ...... ............. ............ ............. ............. ............ ............. ............. ............ 5
4.0 TEST-RESULT GRAPHICS ....... ...... ............. ............ ............. ............. ............ ............. .............5
4.1 Thermal Printer Graphic Printout ............. ............ ............. ............. ............ ............. .............5
4.2 Ink-Jet Printer Output ........... ...... ............. ............ ............. ............. ............ ............. .............5
5.0 CONTROLS AND DISPLAY....... ...... ............. ............ ............. ............. ............ ............. .............5
6.0 CT-7500 ANALYZER SPECIFICATIONS....... ............ ............. ............. ............ ............. .............9
7.0 CT-7500 SPECIAL FEATURES ...... ............. ............ ............. ............. ............ ............. .............10
7.1 CT-7500 Operating Voltage.. ...... ............. ............ ............. ............. ............ ............. .............10
7.2 CT-7500 Main Power Fuse... ...... ............. ............ ............. ............. ............ ............. .............10
7.3 CT-7500 Printer and Printer Paper............ ............ ............. ............. ............ ............. .............10
7.4 CT-7500 Printer Paper Control.... ............. ............ ............. ............. ............ ............. .............10
7.5 Replacing CT-7500 Thermal Paper........... ............ ............. ............. ............ ............. .............11
7.6 CT-7500 LCD Contrast Control ... ............. ............ ............. ............. ............ ............. .............11
8.0 TEST HOOKUP CONNECTIONS..... ............. ............ ............. ............. ............ ............. .............12
8.1 Contact Cable Hookup......... ...... ............. ............ ............. ............. ............ ............. .............12
8.2 Initiate Cable Hookup........... ...... ............. ............ ............. ............. ............ ............. .............12
8.3 Analog Voltage Monitor Hookup. ............. ............ ............. ............. ............ ............. .............12
8.4 Digital Voltage Monitor Hookup .. ............. ............ ............. ............. ............ ............. .............12
8.5 External Trigger Input........... ...... ............. ............ ............. ............. ............ ............. .............12
8.6 AC Current Sensor Hookup . ...... ............. ............ ............. ............. ............ ............. .............13
9.0 OPERATING PROCEDURES.... ...... ............. ............ ............. ............. ............ ............. .............18
9.1 Timing a Circuit Breaker ...... ...... ............. ............ ............. ............. ............ ............. .............21
9.1.1 Timing an Open Operation With No Resistor............ ............. ............ ............. .............22
9.1.2 Timing an Open Operation With Insertion Resistor .. ............. ............ ............. .............23
9.1.3 Timing Close-Open Operation Using Channel #1 .... ............. ............ ............. .............24
9.2 Get Tabulated Results Using Thermal Printer ..... ............. ............. ............ ............. .............25
9.3 Get Graphic Timing Results Using Thermal Printer........... ............. ............ ............. .............29
9.4 Save Timing Shot in EEPROM.. ............. ............ ............. ............. ............ ............. .............35
9.5 Print EEPROM Timing Shot Directory..... ............ ............. ............. ............ ............. .............36
9.6 Recall a Timing Shot ........... ...... ............. ............ ............. ............. ............ ............. .............38
9.7 Deleting a Timing Shot........ ...... ............. ............ ............. ............. ............ ............. .............39