เครื่องวัดอุปกรณ์อิเล็กทรอนิกส์ LCR-T4 Transistor Tester Diode Triode ESR Meter MOS/PNP/NPN L/C/R

เครื่องวัดอุปกรณ์อิเล็กทรอนิกส์ LCR-T4 เครื่องมือวัดยดอดนิยม ใช้วัดอุปกรณ์อิเล็กทรอนิกส์พื้นฐานได้หลายชนิด เพียงเสียบอุปกรณ์ลงตัวเครื่องและกดปุ่มเพียงปุ่มเดียว เครื่องจะค้นหาชนิดและประเภทของอุปกรณ์โดยอัตโนมัติ พร้อมแสดงสัญญลักษณ์ ตำแหน่งขา และคุณสมบัติของอุปกรณ์อย่างครบถ้วน บนจอแสดงผล LCD ขนาดใหญ่ 

• ความสามารถในการวัด Transistor, MOSFET, Thyristor, Diode, Triode, Resistors, Capacitors, Coil
• ตรวจหาชนิดของ Transistor, MOSFET โดยอัตโนมัติ (NPN and PNP transistors, N-channel and P-channel MOSFET)
• แสดงผลด้วยจอ LCD ความละเอียด 128x64 dot มีไฟพื้นหลังสีเขียว (backlight)
• ใช้แบตเตอรี่ 9V (ไม่มีแบตเตอรี่ในชุด)
• แสดงแรงดันแบตเตอรี่เมื่อเปิดเครื่อง
• ทดสอบหาขาขาอุปกรณ์โดยอัตโนมัติพร้อมแดงสัญลักษณ์แบบมาตรฐานให้เห็นเด่นชัด
• ทำงานด้วยปุ่มกดเดียว
• ปิดเครื่องอัตโนมัติเมื่อไม่ใช้งาน
• การวัดค่าใช้เวลาไม่กี่วินาทียกเว้น Capacitor ขนาดใหญ่อาจใช้เวลานานถึง 1 นาที

Features:

• LCR-T4 graphical multi-function tester resistor capacitor + SCR + diode + transistor + mos tube inductance.
• LCD 12864 LCD display, with backlight , backlight color is generally yellow-green .
• 9v battery powering stacked . If prolonged power , you can use two 8.4v lithium battery pack consisting of .

Function:

• 1.Add boot voltage detection function.
• 2.Automatic detection of NPN and PNP transistors , N -channel and P-channel MOSFET, diodes ( including dual diode ) , thyristors , transistors, resistors and capacitors and other components .
• 3.Automatic test out the pin element and displayed on the LCD.
• 4.Can be detected to determine the transistor emitter forward bias voltage of the transistor , MOSFET protection diode and the amplification factor of the base.
• 5.Measure the gate threshold voltage and gate capacitance of the MOSFET.
• 6.1602 lcd display uses LCD (12864 LCD with backlight ).
• 7.High test speed , valid component test: 2 seconds ( except in the larger capacitor of large capacitance measurement also takes a long time , the measured time of one minute is normal ).
• 8.One button operation , power-on test , get a key .
• 9.Power consumption off mode : less than 20 nA of.
• 10.Auto power off function to avoid unnecessary waste , saving battery power , improved battery life.

Test ranges:

• Inductors, capacitors , diodes, dual diode , mos, transistor, SCR , the regulator, LED tube , ESR,Resistance,Adjustable potentiometer.
• Resistance :0.1 ohm resolution, maximum 50M ohm.
• Capacitor :25pf -100,000 uf.
• Inductors : 0.01mh-20H.

New Function:

• 1:Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components.
• 2: Automatic test the pin of a component, and display on the LCD.
• 3:Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage.
• 4: Measure the gate and gate capacitance of the MOSFET threshold voltage.
• 5:Use 12864 liquid crystal display with green backlight.

Specifications:

• A key operation, automatically turn off the power.
• Shutdown current is only 20nA, support battery operation.
• Low-cost version without crystal, support for automatic power off. 1.05k version of the software ATmega168 or ATmega328 in the absence of measurement sleep mode to reduce power consumption.
• Automatic detection of PNP and NPN bipolar transistors, N, P-channel MOSFET, JFET, diodes, dual diodes, thyristor SCR.
• Automatically detects pin placement.
• The current amplification factor of the bipolar transistor and the threshold voltage of the emitter are measured.
• Darlington transistors can be identified by high threshold voltages and high current amplification factors.
• Detection of bipolar transistors, protection diodes for MOSFETs.
• Measure the threshold voltage and the gate capacitance of the MOSFET.
• Supports both resistive measurement and symbol display, up to four digits and unit display. Both ends of the displayed resistance symbol are the connected tester probe numbers (1-3). So the potentiometer can also be measured. If the potentiometer adjusts to one end of it, the tester can not distinguish between the middle and both ends of the pin.
• The resolution of the resistance measurement is 0.1 ohms and the maximum measured value is 50 ohms.
• A capacitor can be detected and measured. The highest four digits and units are displayed. The value can be from 25pf (8MHz clock, 50pF @ 1MHz clock) to 100mF. Resolution up to 1 pF (@ 8MHz clock).
• Equivalent series resistance (ESR) capacitance values can be measured for capacitors above 2UF. Resolution of 0.01 ohms and display the two-digit value. This feature requires at least 16K flash ATMEGA (ATmega168 or ATmega328).
• You can display the symbols in the correct direction for both diodes. In addition, the forward voltage drop is displayed.
• LED detection for the diode, the positive voltage drop much higher than normal. Dual light-emitting diodes are detected as double diodes.
• Zener diodes can be detected if the reverse breakdown voltage is below 4.5V. This will be shown as two diodes, which can only be determined by voltage. The probe around the diode sign is the same, in which case you can identify the true anode of the diode by a threshold voltage of around 700mV!
• **** This annual understand, do not turn a **** if more than three diode-type parts inspection, failure to establish the number of diodes additional message is displayed. This only happens if the diode is connected to all three probes and at least one is a type diode. In this case, you should only connect the two probes and start the measurement again, one by one.
• Measure the capacitance of a single diode in the opposite direction. Bipolar transistors can also be measured if you connect the base to the collector or emitter.
• Only one measurement is required to find the full bridge connection.
• Values less than 25pf Capacitors are not normally detectable, but can be paralleled with a diode or at least 25pf capacitor in parallel. In this case, you must subtract the part of the shunt capacitor value.
• A resistance of less than 2100 ohms will measure the inductance if your ATMEGA has at least 16K of flash memory. The range will be from 0: 01mH more than 20H, but the accuracy is not good. The measurement results show only a single component connection.
• The test takes about two seconds, and only capacitance and inductance measurements take longer.
• The software can set the number of measurements before the power is automatically turned off.
• Built-in self-test function with optional 50Hz signal checking for clock frequency accuracy and waiting for calls (ATmega168 and ATmega328).