LTM-2000 Contact Excel Technology Co
ETC_PUGM_LTM2K_v1.0 2
4CONTENTS
1DISCLAIMER.............................................................................................................................................. I
2WARNING................................................................................................................................................ 1
3CONTACT EXCEL TECHNOLOGY CO........................................................................................................... 1
5LTM-2000 IN-PAVEMENT LOOP TESTER ................................................................................................... 3
5.1 TERMINALS................................................................................................................................................ 4
5.2 INCLUDED CABLES....................................................................................................................................... 4
5.2.1 Red and Black Test Leads................................................................................................................... 4
............................................................................................................................................................................ 4
5.2.2 Excel Technology Co. Loop Finder Probe............................................................................................ 4
6USAGE ..................................................................................................................................................... 5
6.1 POWER..................................................................................................................................................... 5
6.1.1 Turn On Device .................................................................................................................................. 5
6.1.2 Turn Off Device .................................................................................................................................. 5
6.1.3 Automatic Time-Out Shut-Down ....................................................................................................... 5
6.1.4 Critical Battery Shut-Down after Start-Up......................................................................................... 5
6.1.5 Critical Battery Shut-Down Before Start Up ...................................................................................... 6
6.1.6 Toggle Backlight ................................................................................................................................ 6
6.1.7 Backlight Time-out............................................................................................................................. 6
6.2 CHARGING................................................................................................................................................. 6
6.2.1 Battery Indicator................................................................................................................................ 6
6.2.2 USB Charging..................................................................................................................................... 7
6.2.3 Battery LED Indicator......................................................................................................................... 7
6.3 QMETER ................................................................................................................................................ 7
6.3.1 Instructions for Calibrating Lead Resistance ..................................................................................... 9
6.3.2 Instructions for Measuring Loop Characteristics ............................................................................. 10
6.3.3 Status Definitions............................................................................................................................. 11
6.4 INSULATION TEST...................................................................................................................................... 12
6.4.1 Instructions for Evaluating Winding to Earth Insulation Integrity................................................... 12
6.5 LOOP FINDER........................................................................................................................................... 15
6.5.1 Locate In-Pavement Loops By Walking on Road Surface................................................................. 15
6.5.2 Locate Exact Position of Loop Windings .......................................................................................... 17
6.5.3 Locate in-pavement loops from a moving vehicle ........................................................................... 18
