Transistor Tester The Newest Version Adopting ATmega328 Main Control Chip Surpass m8

Transistor Tester The Newest Version Adopting ATmega328 Main Control Chip Surpass m8

Functions:
- One button to power on, one button testing, automatically power off
-  turn off current is only 20nA, support battery operation
- Automatic detect PNP and NPN dual polarity transistor tester, N,P MOSFET, JFET, diode, and tube diode
- Automatic detecting pins overall arrangement
- Measure magnifying dual diode
- The threshold voltage and current measurement of 5 bipolar transistor amplification coefficient and the emitter junction.
- Darlington transistor through a high threshold voltage and high current amplification coefficient identification.
- pairs of bipolar transistors, the protection diode MOSFET detection.
- The threshold voltage and gate capacitance measurement value of MOSFET 8.
- support measurement and symbol two resistance showed the highest four digits and display unit. Resistance symbol display is the tester probe number connection (1-3).
So the potentiometer can also measure. If the potentiometer to adjust to its end, the tester can not distinguish the middle and both ends of the pin.
- Resistance measurement resolution is 0.1 ohms, the highest 50M value measurement in ohms.
- for the capacitor equivalent series resistance of the 2UF numerical above (ESR) capacitance measurement. The resolution is 0.01 ohms and display two digit numerical. This function requires at least 16K flash ATMEGA.
- may two diode display in the right direction sign. In addition, show the forward voltage drop.
- LED detection for the diode forward voltage drop is higher than normal, a lot of. Double light emitting diode detection for double diode.
- zener diode can be detected, if the reverse breakdown voltage is lower than 4.5V. This will display two diodes, only through the voltage determination. The probe around the diode symbol is the same, in this case, you can through the threshold voltage of the diode 700mV anode near the true recognition
The capacitance of the 16 single diode reverse value measurement. Bipolar transistor can also measure, if you connect the base and collector or emitter.
- requires a measurement of the whole bridge to find the connection.
- numerical below the 25pf capacitor is usually not detected, but can be associated with a diode in parallel or at least 25pf shunt capacitor. In this case, you must subtract the shunt capacitance values part.
- resistance of less than 2100 ohms can measure inductance, if your ATMEGA has at least 16K flash memory. The range will be more than 20H from the 0:01mH, but the precision is not good. The measurement results show only a single element connection.
- The test time is about two seconds, only the capacitance and inductance measurement will require a longer time