Multifunction Meter LCR-T4 (RLC, ESR, transistors) Review

The device is made in the form of an open board, with a liquid crystal display, a ZIF test panel and a platform for SMD components. The absence of a case is dictated by the possible connection of additional boards. The LCR-T4 tester circuit is made on the mega328 microcontroller (the exact name is AtMEGA 328P AU), which allows you to measure additional parameters. The firmware of the LCR-T4 tester is subject to change. The LCR-T4 tester automatically recognizes the item under test and displays the two main parameters, along with the circuit designation. The main difficulty in checking radio components is facilitated by the automatic determination of the location of their conclusions. Calibration of the LCR-T4 tester occurs when you select the appropriate action in the menu. Possible questions and clarifications: - What values, in addition to resistance, capacitance of capacitors, inductance of coils and gain of transistors, can the device measure? Capacitor resistance and their losses, in percent; capacitance and voltage drop on MOSFET; voltage drop on bipolar transistors in the open state with automatic recognition of n-p-n / p-n-p; determination of the outputs of thyristors and triacs; capacitance, polarity and voltage on diodes and diode bridges; display of the presence of a protective diode in transistors; measurement of JFET, D-MOS, E-MOS and IGBT. device independently? testing the characteristics of zener diodes with Ustab> 4 V; protection of ports; work as a generator and frequency meter; connection of a graphic and / or color display. Characteristics: Capacitance measurement range 25 pF - 100 mF with an accuracy of 1% Capacitance measurement accuracy ± 1% Inductance measurement range 0.01 mH - 20 H with an accuracy of 1% Inductance measurement accuracy ± 1% Resistance measurement range 0.1 Ohm - 50 MΩ with an accuracy of 1% Resistance measurement accuracy ± 1% Tested components bipolar transistors (PNP, NPN); field-effect transistors (MOSFET) P- and N-channel; JFET transistors; diodes and LEDs; resistors; polar and non-polar capacitors; batteries; inductors; double diodes; triacs; thyristors; zener diodes (< 5 V); chokes;