1.Using 2014 the latest version software V1.11, use M328 chip, the function is more, in addition to the basic functions, as there is an extension.
2 Micro controller with 8MHz external crystal, better measurement accuracy.
3 The correlation resistance with the accuracy of 1/1000 metal film resistors, and the remaining one percent metal film resistors.
4.Use 1602 LCD screen, can display the measurement data and graphics.
5 The main chip with dual in line with socket, 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 consumption, current is about 2mA, so the boot time have the backlight, convenient use of the dark.
8 Size: 80 (long) X 63 (wide) X22 (high) mm.
9 Weight: about 70 grams.
10 Working current: 9V voltage, stable operating current of about 20mA.
A, basic functions
1, One key operation, automatic shutdown.
2, The shutdown current is only about 20nA.
3, Using 8MH crystal.
4, Can automatically detect NPN, PNP bipolar transistor, N channel and P channel MOS field effect tube, junction type field effect transistor, diode, double diode, small power single way thyristor and bidirectional thyristor.
5, Automatic identification of the components of the pin.
6, Measure the current amplification factor of the bipolar transistor and the base emitter threshold voltage.
7, The base and the emitter of the threshold voltage and High Current Darlington transistor amplification factor identification.
8, Can detect bipolar transistor and MOS tube protection diode.
9, Measure the gate threshold voltage and gate capacitance of MOS field effect transistor.
10, 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. Therefore, it can measure the potentiometer. If the potentiometer is not transferred to an extreme position, you can distinguish between the middle and the two ends of the pin.
11, Resistance measurement resolution is 0.1 ohm, can be measured to 50M ohm.
12, Can measure the capacitance. With the use of a capacitive symbol, the right side of the display values, can be shown with a small number of 4. Can measure the capacitance of 30pF-100mF, resolution 1pF.
13, 2uF above the capacitor can simultaneously measure the equivalent series resistance ESR value. Can be shown with a decimal value of two, resolution of 0.01 ohm.
14, Can be in the right order and diode symbol display two diodes, and give the diode forward voltage.
15, LED is detected as a diode, the forward voltage is higher. Two LED were identified as two diodes.
16, Reverse breakdown voltage lower than 4.5V regulator diode can be identified.
17, Can measure the single diode reverse capacitance. If the base and collector or emitter of a bipolar transistor is connected to a pin, the reverse capacitance of the collector junction or the emitter junction can also be measured.
18, Only one measure will be able to get the bridge connection mode.
19, Although the measurement of the capacitance of the lower limit of 25pF, but you can be measured by the capacitance of the capacitor and at least 25pF of the known capacity of the capacitor in parallel, and then from the measurement results will be the parallel capacitor minus
B. extension function
1 Can measure 1Hz-2MHz frequency. 25kHz above the resolution of 1Hz, the low frequency of the periodic measurement, 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 wave, a short press key width of 1% increments, the longer the key press 10%.
Five Separate capacitance and ESR function can be started by menu, range 2UuF-50mF, since the measurement signal amplitude is only 300mV, so can be measured in the road