Transistor Tester Frequency Meter PWM Square Wave LCR Meter Voltmeter Color Screen Display

Transistor Tester Frequency Meter PWM Square Wave LCR Meter Voltmeter Color Screen Display

Instructions download: Click here

Description:
- Using MC ATMEAG328P DIP-28 . With IC mount
- Display unit using 160x128 pixel color display, the entire screen character number 8x20, color depth 16 bit, graphics display element symbol
- Rotary coding switch control, one key for measurement, automatic shutdown
- 9V stacked battery as power supply, can also use the power adapter;current is about 30mA ; after the shutdown, the current is about 20nA
- Automatic detect NPN and PNP transistors, field effect transistors, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pin distribution
- Common emitter current amplification coefficient test NPN and PNP transistors the pipe, base - emitter threshold voltage, cutoff Collector Emitter leakage current
- The emitter threshold voltage and High Current Darlington transistor amplification coefficient identification through the transistor base
- Detection of the protective diode in power transistors and field effect transistors
- Test FET gate source turn-on threshold voltage, drain source resistance, gate source capacitance
- Test 2 resistors once, so the three pin of the adjustable resistor can be measured, if the adjustable resistor is transferred to the end, you can only measure a resistance value
- Resistance measurement with a maximum resolution 0.01Ohm, measuring up to 50Ohm
- Capacitance measurement range from 25pF-100mF, resolution 1pF
- The equivalent series resistance (ESR) of the capacitor which is over 90nF is measured at the same time, and the resolution of the equivalent series resistance is 0.01Ohm.
- A capacitor which is over 5000pF and shows the voltage drop rate at the same time, which can reflect the quality factor (Q value) of the capacitor.
- Test two diodes once, display their positive and negative poles, conduction voltage
- LED shows as a graphic symbol of the diode, and its turn-on voltage is much higher than that of ordinary diodes.
- The voltage regulator diode that reverse breakdown voltage is lower than 4.5V can also be detected.Its positive and negative pole takes  the diode symbol that the conduction voltage is about 700mV as the criterion. And the corresponding voltage of the diode symbol is the voltage regulated value. So do not put an ordinary diode and a voltage regulator at the same time measurement
- Test the single diode, and test the reverse junction capacitance of the PN junction, transistor between PN junction capacitance can also test, then only add also the triode base and emitter, or the base and the collector
- Can test 25pF capacitor .But needs a 30pf capacitor to test 30pf capacitor first ,and make parallel to the capacitor under test , then get the result and minus the testing value of 30pF capacitor.
- Test inductor and resistor less than 2100Ohm meanwhile, and the measuring range is from 0.01mH-20H.
- Testing process is about 2s, large capacitors and inductors will take more time.
- Additional features include frequency measurement, voltage measurement, square wave generator, PWM generator, color selection, debugging and calibration, continuous testing, and other functions
- Frequency measurement range from 1Hz to 1MHz or more, the frequency is lower than 25kHz, can display the cycle, the resolution can be 0.001mHz
- DC voltage measurement up to 50V
- Output 1CH square wave signal, multi frequency is available, the highest output frequency 2MHz
- Output 1CH  fixed frequency, pulse signal for adjusting (PWM), duty cycle adjustment from 1%-99%
- Single capacitance test function, the test mode for continuous measurement, measuring directly in the circuit of the capacitors in the 2uF-50mF. (the measured capacitance circuits required power, measured capacitance required to completely discharge after)
- Thyristor and SCR can only identify the distribution of its pin, and also need to be measured SCR or SCR trigger current less than the tester can provide the current, the tester can only provide maximum 6mA trigger current

NOTE: Before testing the capacitor, the capacitor must be discharged, otherwise will damage the MCU of the tester.

Package included:
- 1x Transistor Tester