Catalogue Function Search Auto mode Device search , the unknown model chip inserted in ic seat can automatically identify the part number ( Automatic identification without input) ( other directories are auto- mode ) 5.0v mode 3.3v mode 74HC 74HC series of logic device test (of the same, and 74LS series base drive level (different) need to manually enter the model) 74LS 74LS series of logic device test (of the same, and 74HC series base drive level (different) need to manually enter the model) CD40 CD4000 series of logic device test (different, and HEF40 series base drive level (the same) need to manually enter the model) HEF40 HEF4000 series of logic device test (different, and CD40 series base drive level (the same) need to manually enter the model) 45/145 45 series 145 series logic device test (the need to manually enter the model) OTHER Interface drive device testing, such as: MAX232, MAX485, 75175, 75176, 75c11.. (the need to manually select the model) AMP Operational amplifier, comparator class testing, such as: LM324, LM358, LM339, LM393, LM2902…(the need to manually enter the model). TR Transistor identification , and automatically determine the transistor types and pin order . Identifiable NPN , PNP, transistors , N- MOS , P -MOS way thyristor , triac , common anode common cathode rectifier automatic identification without input ) ZD Zener regulator value test , test regulator regulator 0v-50v range accuracy 0.01v automatic identification without the need to enter LIGHT Optocoupler secondary the saturation voltage test , can test the the ordinary 4 feet optocoupler secondary saturation voltage automatic identification without input ) OFF Shutdown prompt explanation OK Tests are normal Batter Battery voltage Not found Can’t find Fault The chip damaged or type mismatch Open Open circuit Not supported nonsupport NPN Triode PNP Triode N-MOS FET P-MOS FET 1-SCR Way SCR 2-SCR Triac 2D Common cathode and common anode rectifier A、k、b、c、e、g、 Specific pin Out of range Zener voltage beyond the scope ERR1、2 Self-test failure
