تستر قطعات الکترونیکی LCRT4 معرفی  تستر قطعات الکترونیکی LCRT4 می تواند مقادیر مورد نظر قظعه مورد تست را به صورت خودکار اندازه گیری نماید به همین دلیل استفاده از آن برای کاربر بسیار آسان بوده و برای علاقه مندان به الکترونیک  توسعه دهندگان الکترونیک طراحان و تعمیر کاران الکترویک انتخاب بسیار مناسبی است تستر قطعات الکترونیکی LCRT4 می تواند مقادیر قطعاتی همچون مقاومت خازن سلف دیود ترانزیستور  SCR  MOSFET و  را اندازه گیری کند به کمک این دستگاه می توان نوع قطعه  قطب ها  مقدار HFE ترانزیستور ولتاژ ترشولد و  را تشخیص داد  توجه فرمائید  حتما قبل اتصال خازن ها برای تست از دشارژ بودن آنها مطمئن شوید تا دستگاه دچار آسیب نشود  Introduction  The tester is stable and easy to use which can automatically read out the accurate data and is suitable for electronic enthusiasts electronic developers designers and electronic repair It can measure all kinds of resistance capacitance inductance two tubestransistors SCR MOS field effect tube can determine the device type polar pin output HFEthreshold voltage the junction capacitance of the field effect tube It is particularly suitable for transistor pairing and hybrid surface mount component identification is the best partner of amateur DIYer  1 One key to boot one key test automatic recognition device type automatic switching range automatically shut down after the test 2 Shutdown standby current minimum is only 20na ultra long standby the standby power consumption can be ignored and can be used in battery powered 3 Automatic detecting the PNP and NPN type bipolar transistor N P channel MOSEFT JEFT two level pipe dual two stage tube thyristor SCR SCR three tubes resistors capacitors electric discharge  must be done first before measurement of capacitance the capacitance ESR value 4 Automatic detect pin layout and given a label according to the actual sequence 5 The threshold voltage and current measurement of bipolar transistor amplifying coefficient and the emitter junction leakage current ICE 6 Darlington transistor can be through the high threshold voltage and high current amplification factor identification 7 The bipolar transistor MOSFET protection and detection two tubes and the forward voltage drop Uf  8 To detect threshold voltage VT of MOSFET and measure the gate capacitance value C 9 Detection and transistor and MOSFET protection class two tube magnification and the determination of the base data to confirm emitter transistor the forward voltage  10 Support two resistance measurement at same time and symbol display a maximum of four digit display The display of resistance symbol two end  is the tester probe number connection 13  So the adjustable potentiometer can also be measured if the potentiometer to adjust to its end the tester can not distinguish the middle and both ends of the pin 11 The resistance measurement resolution is 01 ohms the highest measurement value is  50M ohms 12 The highest four digit displaycapacitor capacitance value ra