LCR-T4 Mega328 цифровой тестер транзисторов сопротивление емкости диода триода ESR метр
- Категория: Electronic Measuring Instruments >>>
- Поставщик: Shenzhen,Funkey,Tech,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Aug-18-2025 | 6.21 $* | 6.96 $* |
| Jul-18-2025 | 5.25 $* | 5.83 $* |
| Jun-18-2025 | 6.2 $* | 6.46 $* |
| May-18-2025 | 6.23 $* | 6.78 $* |
| Apr-18-2025 | 5.15 $* | 5.22 $* |
| Mar-18-2025 | 6.82 $* | 6.30 $* |
| Feb-18-2025 | 6.30 $* | 6.13 $* |
| Jan-18-2025 | 6.70 $* | 6.39 $* |
Характеристики
Company Profile
We specialize in Raspberry Pi、Ard Series products、BBC Micro:bit and other STEAM Education accessories,which is a better place for teachers、students、enthusiastic and others who are interested in it.
In addition,we have broadened our products to smart home devices.And we have advantages for wifi and zigbee series smart home products.Please just feel free to send your inquiry,we will offer you an ideal price and better service.
In addition,we have broadened our products to smart home devices.And we have advantages for wifi and zigbee series smart home products.Please just feel free to send your inquiry,we will offer you an ideal price and better service.
Product overview
Product Name | LCR-T4 | ||||
Product Weight | T4 with buckle: 42.8g | T4 with Box: 48.6g | T4 Case: 93.6g | ||
Product Size | 85*60*17mm | 110*65*23mm | 113*87*17mm | ||
LCR-T4 graphical multi-function tester resistance + capacitance + diode inductor + triode + mos tube, etc.
LCD is 12864 LCD with backlight, backlight color is usually yellow-green.
The power supply is a 9v laminated battery. If a long-time power supply, you can use 2 lithium batteries to form an 8.4v battery pack power supply.
1. Using ATmega8, ATmega168 or ATmega328 microcontroller. (Our products use Atmega328 microcontroller)
2. 2x16 character LCD display to show the results.
3. one-button operation, automatic power off.
4. shutdown current only 20nA, support battery operation.
5. low-cost version without crystal, support automatic power off. 1.05k version software of ATmega168 or ATmega328 uses sleep mode to reduce power consumption when there is no measurement.
6. automatic detection of PNP and NPN type bipolar transistors, N and P-channel MOSFETs, JFETs, diodes, double diodes, thyristors SCRs. 7. automatic detection of pin layout.
7. Automatically detects pin layout.
8. measure the current amplification factor and the threshold voltage of the emitter junction of bipolar transistors.
9. Darlington transistors can be identified by high threshold voltage and high current amplification factor.
10. detection of protection diodes for bipolar transistors, MOSFETs.
11. Measurement of MOSFET threshold voltage and gate capacitance value.
12. support two resistance measurements and symbol displays, up to four digits, and unit display. Both ends of the displayed resistance symbols are connected to tester probe numbers (1-3). So potentiometers can also be measured. If the potentiometer is adjusted to its end, the tester cannot distinguish between the middle and both ends of the pins. 13.
13. The resolution of resistance measurement is 0.1 ohm, and the maximum measurement value is 50M ohm.
14. can be detected and measured by a capacitor. Up to four digits and units are displayed. Values 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 with values above 2UF. The resolution is 0.01 ohms and two-digit values are displayed. This function requires at least 16K flash memory ATMEGA (ATmega168 or ATmega328). 16.
16. can display the sign in the correct direction for both diodes. In addition, displays the forward voltage drop.
17. the LED is detected as a diode with a much higher than-normal forward voltage drop. Dual light-emitting diodes are detected as dual diodes.
18. Zener diodes can be detected if the reverse breakdown voltage is below 4.5 V. This will be shown for both diodes and can only be determined by the voltage. The probes have the same symbol around the diode, in which case you can identify the true anode of the diode by the threshold voltage near 700mV!
19. If more than 3 diode-type parts are detected, the number of established diodes shows another failure message. This will only happen if the diodes are connected to all three probes and at least one is a type diode. In this case, you should only connect two probes and start the measurement again, one after the other.
Measure the reverse capacitance value of a single diode. Bipolar transistors can also be measured if you connect the base to the collector or the emitter.
Only one measurement is needed to find the full bridge connection.
Values below 25pf capacitor are usually undetectable but can be connected in parallel with a diode or at least a 25pf capacitor. In this case, you must subtract the portion of the parallel capacitor value.
23. resistors below 2100 ohms will measure inductance if your ATMEGA has at least 16K flash memory. The range will be from 0:01mH over 20H, but the accuracy is not good. The measurement results will only show a single-component connection.
The test time is about two seconds, only the capacitance and inductance measurements will take longer.
25. The software can set the number of measurements before the power is automatically turned off.
The built-in self-test function with an optional 50Hz signal checks the clock frequency accuracy and waits for a call (ATmega168 and ATmega328).
27. optional device calibration port output for internal resistance and zero-distortion self-test capability measurements (ATmega168 and ATmega328). A 100nF to 20uF capacitor connected between pin 1 and pin 3 is required to compensate for the analog comparator's detuned voltage. This reduces the measurement error for capacitors above 40uF. With the same capacitor internal correction voltage reference voltage is found to adjust the gain of the internal reference measurement ADC.
SCRs and SCRs can be detected if the test current exceeds the maintenance current. However, some semiconductor SCRs and thyristors have higher trigger currents than the tester can provide. Note that all functions are only available for microcontrollers with more program memory such as the ATmega168.
LCD is 12864 LCD with backlight, backlight color is usually yellow-green.
The power supply is a 9v laminated battery. If a long-time power supply, you can use 2 lithium batteries to form an 8.4v battery pack power supply.
Function
*New power-on voltage detection function
*Automatically detects components such as NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including double diodes), thyristors, triodes, resistors and capacitors.
*Automatically test the pins of the components and display them on the LCD
* can detect the amplification factor and base of transistors, MOSFET protection diodes, etc. to determine the forward bias voltage of the emitter transistor
* measuring the gate threshold voltage and gate capacitance of MOSFETs
*Display using 12864 lcd LCD (128 * 64 characters)
* High test speed, valid component test: in 2 seconds (except in larger capacitors, the measurement of large capacitance also takes longer, the measurement time of 1 minute is normal)
*One key operation, power on test, one key.
*Power consumption off mode: less than 20 nA
*Automatic shutdown function can avoid unnecessary waste, save battery energy and improve the endurance time.
*New power-on voltage detection function
*Automatically detects components such as NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including double diodes), thyristors, triodes, resistors and capacitors.
*Automatically test the pins of the components and display them on the LCD
* can detect the amplification factor and base of transistors, MOSFET protection diodes, etc. to determine the forward bias voltage of the emitter transistor
* measuring the gate threshold voltage and gate capacitance of MOSFETs
*Display using 12864 lcd LCD (128 * 64 characters)
* High test speed, valid component test: in 2 seconds (except in larger capacitors, the measurement of large capacitance also takes longer, the measurement time of 1 minute is normal)
*One key operation, power on test, one key.
*Power consumption off mode: less than 20 nA
*Automatic shutdown function can avoid unnecessary waste, save battery energy and improve the endurance time.
1. Using ATmega8, ATmega168 or ATmega328 microcontroller. (Our products use Atmega328 microcontroller)
2. 2x16 character LCD display to show the results.
3. one-button operation, automatic power off.
4. shutdown current only 20nA, support battery operation.
5. low-cost version without crystal, support automatic power off. 1.05k version software of ATmega168 or ATmega328 uses sleep mode to reduce power consumption when there is no measurement.
6. automatic detection of PNP and NPN type bipolar transistors, N and P-channel MOSFETs, JFETs, diodes, double diodes, thyristors SCRs. 7. automatic detection of pin layout.
7. Automatically detects pin layout.
8. measure the current amplification factor and the threshold voltage of the emitter junction of bipolar transistors.
9. Darlington transistors can be identified by high threshold voltage and high current amplification factor.
10. detection of protection diodes for bipolar transistors, MOSFETs.
11. Measurement of MOSFET threshold voltage and gate capacitance value.
12. support two resistance measurements and symbol displays, up to four digits, and unit display. Both ends of the displayed resistance symbols are connected to tester probe numbers (1-3). So potentiometers can also be measured. If the potentiometer is adjusted to its end, the tester cannot distinguish between the middle and both ends of the pins. 13.
13. The resolution of resistance measurement is 0.1 ohm, and the maximum measurement value is 50M ohm.
14. can be detected and measured by a capacitor. Up to four digits and units are displayed. Values 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 with values above 2UF. The resolution is 0.01 ohms and two-digit values are displayed. This function requires at least 16K flash memory ATMEGA (ATmega168 or ATmega328). 16.
16. can display the sign in the correct direction for both diodes. In addition, displays the forward voltage drop.
17. the LED is detected as a diode with a much higher than-normal forward voltage drop. Dual light-emitting diodes are detected as dual diodes.
18. Zener diodes can be detected if the reverse breakdown voltage is below 4.5 V. This will be shown for both diodes and can only be determined by the voltage. The probes have the same symbol around the diode, in which case you can identify the true anode of the diode by the threshold voltage near 700mV!
19. If more than 3 diode-type parts are detected, the number of established diodes shows another failure message. This will only happen if the diodes are connected to all three probes and at least one is a type diode. In this case, you should only connect two probes and start the measurement again, one after the other.
Measure the reverse capacitance value of a single diode. Bipolar transistors can also be measured if you connect the base to the collector or the emitter.
Only one measurement is needed to find the full bridge connection.
Values below 25pf capacitor are usually undetectable but can be connected in parallel with a diode or at least a 25pf capacitor. In this case, you must subtract the portion of the parallel capacitor value.
23. resistors below 2100 ohms will measure inductance if your ATMEGA has at least 16K flash memory. The range will be from 0:01mH over 20H, but the accuracy is not good. The measurement results will only show a single-component connection.
The test time is about two seconds, only the capacitance and inductance measurements will take longer.
25. The software can set the number of measurements before the power is automatically turned off.
The built-in self-test function with an optional 50Hz signal checks the clock frequency accuracy and waits for a call (ATmega168 and ATmega328).
27. optional device calibration port output for internal resistance and zero-distortion self-test capability measurements (ATmega168 and ATmega328). A 100nF to 20uF capacitor connected between pin 1 and pin 3 is required to compensate for the analog comparator's detuned voltage. This reduces the measurement error for capacitors above 40uF. With the same capacitor internal correction voltage reference voltage is found to adjust the gain of the internal reference measurement ADC.
SCRs and SCRs can be detected if the test current exceeds the maintenance current. However, some semiconductor SCRs and thyristors have higher trigger currents than the tester can provide. Note that all functions are only available for microcontrollers with more program memory such as the ATmega168.
Product Photo
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Packing&Shipping
About packing:
1.We offer standard packing by default.
1.We offer standard packing by default.
2.We offer Anti-static packaging bags which can protect the product well.
3.If you need to customized package,it is also acceptable,please just contact with me for customization.
About shipping
1.We offer DHL/UPS/FedEx etc. fast shipping for you ,so you can get your products as soon as possible.
2. If you have other available shipping method,it is also negotiable if it is safe to ship.
3.Any other available shipping method can be chosen, please just feel free to contact with us for further information.
FAQ
1. who are we?
We are located in Guangdong, China, we have rich experience for 6 years in Electronic Components ,allowing us offer you a reasonable price with qualified products,and offering you professional advice at the same time.We can accept a minimum order for 1 piece as a sample,and can customize your logo or code or as your requirements for a larger order.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Always a test before shipment;
3. what can you buy from us?
Integrated circuit,Electronic components,Modules,IC,Smart home devices.
4. why should you buy from us not from other suppliers?
Reasonable factory price;Low minimum order quantity ;Large order experience;
5. what services can we provide?
7*24h online service
Customization Service
Accepted Payment Type: T/T,PayPal;Alipay
Most suitable fast shipping method or your own delivery agent
We are located in Guangdong, China, we have rich experience for 6 years in Electronic Components ,allowing us offer you a reasonable price with qualified products,and offering you professional advice at the same time.We can accept a minimum order for 1 piece as a sample,and can customize your logo or code or as your requirements for a larger order.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Always a test before shipment;
3. what can you buy from us?
Integrated circuit,Electronic components,Modules,IC,Smart home devices.
4. why should you buy from us not from other suppliers?
Reasonable factory price;Low minimum order quantity ;Large order experience;
5. what services can we provide?
7*24h online service
Customization Service
Accepted Payment Type: T/T,PayPal;Alipay
Most suitable fast shipping method or your own delivery agent
