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DIY Kits, not soldered, Atmega168 has been programmed, without battery
Specification:
Measurment Range:
Resistor:0.5 Ω-50MΩ
Capacitor:30pF-100mF
Inductance：0.01MH-10H
wroking voltage: can use 6FF22 9V Battery, or DC 5.5-12V via DC socket
Controller :ATmega168
Standby current: 0.02uA
Operating current: 25mA
Features:
a key measurement operation, the time delay automatically shut off the power. Shut off the current 20 na, support for battery operation.
the automatic detection of PNP and NPN bipolar transistor, N, P channel MOSFET, jfets field-effect tube, diode, double diode, thyristor, resistance, capacitance and inductance. Automatically detect pin definition.
measure the bipolar transistor current amplification coefficient (B) and emission of conduction voltage (Uf). Darlington transistors can be high threshold voltage and high current amplification factor recognition.
can detect the bipolar transistor and the inside of the MOSFET protection diode and display on the screen.
measure the MOSFET threshold voltage and gate capacitance value.
support two resistance measurements, potentiometer can also be measured. If one end of the potentiometer to adjust to it, the tester is unable to distinguish between the middle and at the ends of the pin.
the resolution of the resistance measurement is 0.1 ohms, highest measured value up to 50 m ohm.
pf capacitance measurement range from 25 to 100 mf (UF) 100000. Resolution can reach 1 pF.
can detect more than 2 uf capacitor equivalent series resistance (ESR), a resolution of 0.01 ohms. This function for detection capacitance performance is very important.
two diodes can be displayed in the right direction signs, also showed a positive pressure drop.
LED detection for diode, positive pressure drop than normal on the high side. Double light emitting diode detection for the diode. Detection of leds will shine.
each test time is about two seconds, only large capacitance and inductance measurement will need a long time.