- Stock: In Stock
- SKU: SKU162905
Description:
Transistors,field effect tubes,diodes,resistors,capacitors,inductors,etc.with the function of capacitor ESR test
Power supply: DC9V (need to bring your own 9v layer-built battery 6F22)
Weight: 0.077kg
Use 12864 liquid crystal display with backlight,which color is blue-white
SMD,SMT technology, reflow soldering welding products (avoid suite welding leads to failure)
Function:
Graphical display pining symbols and pin order. Be clear at a glance
Use 128 x 64 liquid crystal display (128 x 64 lattice points)
Quick shutdown button
Power consumption shutdown mode
Boot voltage detection
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
Automatic test the pin of a component, and display on the LCD
Can detect the transistor, MOSFET protect diode amplification coefficient and the determine to cardinal number and the emitter transistor forward biased voltage
Measure the grid electrode threshold voltage and the MOSFET of gate capacitance
High test speed, the validity of the component test in 2 seconds (except in large capacitor, which need a long time, the measured time is normal in 1 minute)
A key operation, one-click fix the boot test
Closed power consumption modes: less than 20nA
Automatic shutdown function, which can avoid unnecessary waste, to save battery power, improve the battery life
Notice:
Before measuring capacitance,the capacitor must be discharged,otherwise very likely damage the meter
Specifications: For you reference
1. Use ATmega8,ATmega168 or ATmega328 micro-controller
2. 2 x16 character LCD display the results
3. One key operation, automatically shut off the power
4. Shut off the current only 20 nA, support for battery operation
5. Low cost version without crystals, support automatically shut off the power. When there is no measurements, it will turn into sleep mode to reduce the power consumption for 1.05k version software ATmega168 or ATmega328
6. Automatic detection of PNP and NPN bipolar transistor, N channel and P channel MOSFET,JEFT,diode,double diode,thyristor SCR
7. Automatically detect pin layout
8. Measuring current amplification coefficient of bipolar transistor and emitter junction of threshold voltage
9. Darlington transistors can be identified by high threshold voltage and high current amplification factor
10. The bipolar transistor and MOSFET protect diode detection
11. Measuring the MOSFET threshold voltage and gate capacitance value
12. Support two resistors measurement and symbolic display, which displayed that the top of four Numbers and units. According to the resistance of the symbol is connected on both ends of tester probe number (1-3). So the potentiometer also can be measured. If one end of the potentiometer to adjust to it, the tester is unable to distinguish the pins between the middle and end
13. The resolution of the resistance measurement is 0.1ohms,and the highest measured value is 50m ohm
14. A capacitor can be tested and measured. The top of four Numbers and units. Values can range from 25pf (8MHZ clock, 50pf @1MHZ clock) to 100mf. Resolution can reach 1pf (@8MHZ clock)
15. It can measure for more than 2uf numerical capacitor equivalent series resistance (ESR) capacitance. A resolution of 0.01 ohms and display two digit number.This feature requires at least 16k flash ATMEGA (ATmega168 or ATmega328)
16. Two diodes can be displayed in the right direction. In addition, display forward voltage drop
17. The detection of a LED diode, forward voltage drop is higher than normal. The detection of double light emitting diode is the diode
18. If reverse breakdown voltage is lower than 4.5V, the Zener diodes could be detected.This will be shown as two diodes, which can only be determined by the voltage. Probe around the diode symbol is the same, in this case, you can through the near 700mv recognition threshold voltage diode real anode
19. If more than three diode parts inspection, the establishment of diode number shows another failed messages. This can only happen if diode connected to all three probes and is at least one type of diode. In this case, you should only connect two probes and start the measurement again, one by one
20. Measurement of a single diode reverse capacitance value. Bipolar transistor can also be measured also, if you connect the base and the collector and emitter
21. Only need to find a single measurement of the whole bridge connection
22. Value less than 25pf capacitor is usually undetectable, but can be with a diode in parallel or at least 25pf capacitor in parallel. In this case, you must subtract the part of capacitance
23. Resistance less than 2100ohms can measure inductance, if your ATMEGA has at least 16k flash memory. More than 20h will range from 0:01mH, but accuracy is not good. Measurement results show only a single elements are connected
24. Test time is about two seconds,only capacitance and inductance measurement need a long time
25. Software can be set number of measurements before the power down automatically
26. Built-in self-test function and optional 50hz signal check of clock frequency accuracy and waiting for the call (ATmega168 and ATmega328)
27. Optional equipment calibration port output resistance and zero disorder self-checking capability (ATmega168 and ATmega328). Need a 100nf to 20uf capacitance connected to pin1 and pin3 compensation between analog comparator offset voltage. This can reduce the measurement error of more than 40uf capacitor. With the same internal correction capacitor voltage reference voltage measurement of ADC gain was found to adjust the internal reference
If the test current exceed holding current, the SCR and TRIAC can be detected. But some semiconductor silicon controlled rectifier and the bidirectional thyristor can provide higher current than the trigger current. The test current is only about 6ma
Package included:
1 x 12864 LCD Transistor Tester
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