Parameter Based on the L/C resonance principle High speed microcontrollers precision computation Measuring range below 1uH and 1pF Especially qualify in microwave manufacture and measuring switching power supply transformer, filter inductance and so on. LC100-Ahas four measuring range position: 1. C range ........Capacitance (0.01pF-10uF) 2. L range ........Inductance (0.001uH-100mH) 3. Hi.L range ......Big inductance (0.001mH-100H) 4. Hi.C range ......Big capacitance range (1uF-100mF) All files position are automatic measuring ranges, it is easy to operate. Measurement accuracy:as following photo shows LCD display mode: 1602 Test frequency range: L/C about 500KHZ Big inductance 500HZ Size:3.15x1.97x0.82 inch Pls reset to zero before testing Test frequency of this item is higher, it is not suitable for measuring the electrolytic capacitor Package list: LC-100A: 1 x LC-100A 1 x USB cable 2 x Test clip Function of five buttons: Red: Reset Write: Big Capacitance Hi.C Choice (With self-locking) Blue: Big Inductance Hi.L Choice (with self-locking) Yellow: L/C(with self-locking) Black: Function button Details as follows (Pre 1, Release 0, X random) LC100-AFunction table Interface: Mini USB &5.5DC Socket (inner: positive pole, outer: negative pole) 3. Direction for use . Switch on the L/C Meter . Chose the corresponding files, inductance: Lx, capacitance: Cx, big inductance: Hi.L, big capacitance: Hi.C. Display as follows (testing terminal open loop) InductanceMEASURE Lx OVER RANGE 5 CapacitanceMEASURE Cx 0.00pF Big inductanceMEASURE Hi.L OVER RANGE Big capacitanceMEASURE Hi.C 0.00pF Display as follows( testing terminal short circuit): Big inductanceMEASURE Hi.L 0.000mH InductanceMEASURE Lx 0.000uH CapacitanceMEASURE Cx OVER RANGE (3).When testing terminal open loop the measured value of capacitance is not 0, or witch of the inductance is not 0 as the testing terminal short circuit, you can reset to 0 by ways of capacitance model and inductance model, as follows: (a) Capacitance model Pre red button as testing terminal open loop, it displays CALCULATING, keep preing for one second, when CALCULATINGOK displayed,release the red button,resetting to 0 is finished, and 0.00pF is displayed, then capacitances can be measured. (b) Inductance model Pre red button as testing terminal shirt circuit, it displays 0.000uH or 0.000mH, and then inductances can be measured. (4). Please pre black function button as results displayed, and corresponding frequency will be displayed. Note: 1. Please reset to 0 before testing a capacitance or an inductance, or errors may be appeared. Even if 0 displayed before measuring, resetting to 0 is needed. 2. At the time of resetting to 0, whenCALCULATINGOK appeared, please keep preing for 2 to 3 seconds, and the parameter written to will be prompted, then release. 3. Resetting to 0 is forbidden as components are being measured. If you do it, please shut down immediately and restart, then reset to 0. 4. The time of measuring a big capacitance (above 10mF) may be more than one second, and it needs seven to eight seconds to get the measured value of the capacitance (100mF). 5. Forbid to measure a capacitance which is not discharged, otherwise it may damage the mainframe. If you need english manual,please click here: english manual ,thank you