1602D LCD M328 Transistor Tester

Product description: 1.Using 2014 the latest version software V1.11Â£Â¬ use M328 chipÂ£Â¬ the function is moreÂ£Â¬ in addition to the basic functionsÂ£Â¬ as there is an extension. 2 Micro controller with 8MHz external crystalÂ£Â¬ better measurement accuracy. 3 The correlation resistance with the accuracy of 1/1000 metal film resistorsÂ£Â¬ and the remaining one percent metal film resistors. 4.Use 1602 LCD screenÂ£Â¬ can display the measurement data and graphics. 5 The main chip with dual in line with socketÂ£Â¬ very suitable for electronic enthusiasts to upgrade or replace the chip. 6 Using 9V stack battery power supply. 7 All components are made of high-quality goods. LCD screen backlight screen backlight for low power consumptionÂ£Â¬ current is about 2mAÂ£Â¬ so the boot time have the backlightÂ£Â¬ convenient use of the dark. 8 Size: 80 (long) X 63 (wide) X22 (high) mm. 9 Weight: about 70 grams. 10 Working current: 9V voltageÂ£Â¬ stable operating current of about 20mA. AÂ£Â¬ basic functions 1Â£Â¬ One key operationÂ£Â¬ automatic shutdown. 2Â£Â¬ The shutdown current is only about 20nA. 3Â£Â¬ Using 8MH crystal. 4Â£Â¬ Can automatically detect NPNÂ£Â¬ PNP bipolar transistorÂ£Â¬ N channel and P channel MOS field effect tubeÂ£Â¬ junction type field effect transistorÂ£Â¬ diodeÂ£Â¬ double diodeÂ£Â¬ small power single way thyristor and bidirectional thyristor. 5Â£Â¬ Automatic identification of the components of the pin. 6Â£Â¬ Measure the current amplification factor of the bipolar transistor and the base emitter threshold voltage. 7Â£Â¬ The base and the emitter of the threshold voltage and High Current Darlington transistor amplification factor identification. 8Â£Â¬ Can detect bipolar transistor and MOS tube protection diode. 9Â£Â¬ Measure the gate threshold voltage and gate capacitance of MOS field effect transistor. 10Â£Â¬ Can simultaneously measure two resistance and the resistance symbol display. On the right side of the 4 bit values that are shown in decimal places. Resistance sign on both sides of the display pin number. ThereforeÂ£Â¬ it can measure the potentiometer. If the potentiometer is not transferred to an extreme positionÂ£Â¬ you can distinguish between the middle and the two ends of the pin. 11Â£Â¬ Resistance measurement resolution is 0.1 ohmÂ£Â¬ can be measured to 50M ohm. 12Â£Â¬ Can measure the capacitance. With the use of a capacitive symbolÂ£Â¬ the right side of the display valuesÂ£Â¬ can be shown with a small number of 4. Can measure the capacitance of 30pF-100mFÂ£Â¬ resolution 1pF. 13Â£Â¬ 2uF above the capacitor can simultaneously measure the equivalent series resistance ESR value. Can be shown with a decimal value of twoÂ£Â¬ resolution of 0.01 ohm. 14Â£Â¬ Can be in the right order and diode symbol display two diodesÂ£Â¬ and give the diode forward voltage. 15Â£Â¬ LED is detected as a diodeÂ£Â¬ the forward voltage is higher. Two LED were identified as two diodes. 16Â£Â¬ Reverse breakdown voltage lower than 4.5V regulator diode can be identified. 17Â£Â¬ Can measure the single diode reverse capacitance. If the base and collector or emitter of a bipolar transistor is connected to a pinÂ£Â¬ the reverse capacitance of the collector junction or the emitter junction can also be measured. 18Â£Â¬ Only one measure will be able to get the bridge connection mode. 19Â£Â¬ Although the measurement of the capacitance of the lower limit of 25pFÂ£Â¬ but you can be measured by the capacitance of the capacitor and at least 25pF of the known capacity of the capacitor in parallelÂ£Â¬ and then from the measurement results will be the parallel capacitor minus To result. B. extension function 1 Can measure 1Hz-2MHz frequency. 25kHz above the resolution of 1HzÂ£Â¬ the low frequency of the periodic measurementÂ£Â¬ the resolution can be to 0.001MmHz. 2 Can measure DC voltage below 50V. 3 Can produce 1Hz-2MHz square wave signal. 4 Can produce a fixed frequency but the pulse width of the pulse waveÂ£Â¬ a short press key width of 1% incrementsÂ£Â¬ the longer the key press 10%. Five Separate capacitance and ESR function can be started by menuÂ£Â¬ range 2UuF-50mFÂ£Â¬ since the measurement signal amplitude is only 300mVÂ£Â¬ so can be measured in the road

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