ETG – In-Pavement Loop Tester
Model Number:
Original Revision 1.0 March 2007 man__a.doc This revision 27-07-2012 Rev F
Страница 1: ...ETG In Pavement Loop Tester Model Number Original Revision 1 0 March 2007 man__a doc This revision 27 07 2012 Rev F...
Страница 2: ...cing an order Excel Technology Group Pty Ltd warrants its products to the specification detailed herein in accordance with standard conditions of sale client specification and conditions imposed throu...
Страница 3: ...ngle 9V D cell The device will automatically switch OFF after a preset period to enable longer battery life WHEN disconnected from a loop Activating the ON button wakes up the internal microprocessor...
Страница 4: ...of the loop Typically 15 140Khz Inductance Is the inductance value of the loop Typically 40 700 MicroHenries Resistance Is the DC resistance of the loop Typically 1 3ohms Q Is the performance value o...
Страница 5: ...n Factory Test Certified at the following levels of resistance 10MegOhm 5 50MegOhm 5 10 and 200MegOhm 10 A resistor network composed of 0 5watt 10MegOhm resistors is used for this test It is acknowled...
Страница 6: ...of road safe where the test is being performed as it is not possible to observe the instrument AND observe approaching vehicles simultaneously This specific nature of this requirement may vary accordi...
Страница 7: ...ever this variation is not affected by C C only affects the absolute value of What does all this mean Changing the resonant frequency point for a fixed inductor a loop requires changing the capacitanc...
Страница 8: ...maller vehicle and the accuracy achievable by the vehicle detector in measuring the vehicle length The following example indicates how low Q effects vehicle length measurement and how adjustments in t...
Страница 9: ...nce and then computes the related values of resistance inductance and Q within the resonance equation The tester has a high voltage generation circuit which produces 500Vs for approximately 1 second i...
Страница 10: ...ohmmax DC100mA Mate enlock Current rating 3amp per pin Contact Resistance 30Mohmmax DC100mA PCB Modular Terminal Phoenix style 10Amp Rated Voltage 300VAC IDC Style Connectors Withstanding Voltage 500v...
Страница 11: ...inductance based on frequency and a preset capacitance reference The LTM1000 generates a 500V DC pulse for typically 50 milliseconds to determine insulation quality The LTM1000 incorporates a highly...
Страница 12: ...Statement The LTM1000 In pavement Loop Tester Serial Number ET 0708 029 was tested in relation to preset calibrated test loops and in accordance with the manufacturers product specification LT_IND50...
Страница 13: ...140Khz 1 The loop tester referred to as LT1000 has been constructed such that generated electromagnetic disturbances shall not interfere with other equipment A report of compliance in relation to IEC...
