LCR tester transistor transistor line ESR signal generator PWM multifunction DIY

Description
This product all with high-quality genuine element,
key resistance using high-precision resistor error 0.1% (the last one purple color ring),
0.5% precision voltage reference, ATMEGA original package new IC,
professional Manufacturers military grade plate PCB,
in order to ensure the accuracy and reliability of the test,
those who do not conform are generic products, please pay attention to distinguish!

Note: Do not use solder flux as production of electronic products!
A few customers have been caused due to the residual paste is not working properly,
and is difficult to remove!
This is the basic knowledge of electronic production, solder paste is acidic and corrosive, rosin can!
Circuit basic properties:
Power supply voltage: DC 5.5-12V (designed for use 9V 6F22 battery)
Working Current: 13mA (when the test current of about 18mA)
PCB Size: 80 * 80 mm
A single set of weight: 0.075KG

This is a more intelligent than the multimeter measuring instrument, called a good helper electronic enthusiasts,
with a powerful set of measurements,
automatic identification of various types of common components,
pin definitions and the main parameters,
only one button to automatically measure !
Battery-powered portable design,
you can even take it to the store to pick element!
Also has an external power supply function,
the use of more economical and convenient for a long time in the room!
Now updated, in addition to the original function increase the signal generator,
the capacitor ESR line measurement, PWM pulse signal generator,
frequency meter (this function is to add a few components to achieve their own) and other useful features,
in fact, an essential instrument radio enthusiasts , a machine in hand, do not want nothing!

Main Features:
1: a key measurement operation, auto power off delay. Shutdown current is only 20nA, support for battery operation.

2: Automatic detection of PNP and NPN bipolar transistor, N, P-channel MOSFET, JFET field effect transistors, diodes, two diodes, thyristors, resistors, capacitors, inductors. Automatic detection pin definitions and current amplification factor (B) and the turn-on voltage of the transistor emitter junction (Uf), Darlington transistor through a high threshold voltage and high current amplification factor identification.

3: can detect bipolar transistors and MOSFET internal protection diode and displayed on the screen. You can measure the threshold voltage of the MOSFET and the gate capacitance values.

4: support two resistance measurements, the potential can also be measured. The highest resolution is 0.1 ohm resistance measurements, the highest measured value of 50M ohms.

5: capacitance measurement range from 25pf to 100mF (10?UF). Resolution up to 1 pF. 0.09UF capacitance can be detected above the equivalent series resistance (ESR), a resolution of 0.01 ohms. It can display the value of the capacitor voltage loss, and increase individual-line capacitance ESR measurements, available online (on the circuit) direct measurement of capacity of the capacitor and ESR, easy maintenance troubleshooting capacitance.
6. inductance measurement range of 0.01MH-20H, otherwise it will be displayed as resistance, if the inductor DC resistance higher than 2100 in Europe also appears as resistance.
7: You can display symbols of the two diodes in the right direction, displaying the forward voltage drop. LED detected as a diode forward voltage drop higher than normal. Dual LEDs detected as double diode. Simultaneous detection LED flashes, very intuitive.

8: Each test time is approximately two seconds, only large capacitance and high inductance measurements will take a long time.

New conversation function, you can select from the menu the following additional features:
1. The square wave signal generator, optional built-in within the range of 1HZ-2MHZ stall square wave signal;
2.PWM pulse signal generator for 1-99% of the pulse width modulated signal;
3. The frequency meter function, can test 1HZ-25KHZ or higher frequency signal (in this case a slight decline in accuracy, this feature should make their own extensions)
The following is the actual measurement situation:
0.05% precision measuring resistors and two 1K 0.1% precision resistor (usually feet element, can easily be inserted into the two test points, the instrument automatically detects) This machine uses:
 
Measurement accuracy of 1% 1800PF and 0.1UF Promise of capacitance, pay attention to short-circuit capacitance measuring the capacitance feet let go save electricity, as this may damage the instrument, if the measure is very likely to live instrument display CELL unusable even damage the main chip, such we are not responsible for, oh, only replace the chip, be sure to pay attention to:
 
Measurement 3300UF electrolytic capacitors, also shows ESR values ??( sometimes capacitance normal, but this value is too large then the capacitor has failed to detect some of the work or longer periods of storage electrolytic capacitor quality was very effective ) and voltage loss value:
 
Inductance test (0.1MH):

Detection of a diode in SMD placement test zone (which may need to be insulated object pressing element to ensure access to reliable):

Detection transistor, display magnification (B) and the forward voltage drop VBE (Uf), pipe type and pin definitions, to 123 display, more in line with usage, very suitable for the identification and selection of paired transistor. This also shows the value at the time of the transistor is not zero Iceo and Ices :
 
Detection JFET 2SK30A, display the operating current I tube type, pin definitions, specific VGS under:
 
Detection SCR MCR100 (because SCR trigger current needed, this instrument provides detection current is small, some high-power thyristor trigger or not, you can not correctly detected):
 
MOSFET pipe detection: (IRFP40N10)

Signal generator features:
    
PWM pulse signal generator:
 
 
C + ESR function (capacitance-line measurement, remember to test before sure that no residual voltage test site ):
 
After the product installation is complete, self-self-test procedure by a simple parameter modification,
in order to achieve excellent accuracy, please refer to the specific operating instructions
(this function need to prepare themselves a short route and a quality compared between 0.1-20UF Good Promise of capacitance):




/////Features:
/////100% Brand New and High Quality

Purchase Notes:
1. Product title marked "DIY kit" are parts, need your own welding assembly, to demonstrate the convenience,
the main picture shows the welding finished product physical map (Kit without battery),
the second figure is that you receive All parts,
be sure to pay attention to distinguish;
2. The  kit production needs appropriate electronic technology and ability,
make sure you can complete the production!
We offer a suite of high-quality components and all are done by real,
will provide the product after giving electronic version of the installation instructions with detailed pictures and comments,
and provide technical advice, try to help you solve the problems in the installation,
but the element and PCB can not be returned after the cut foot tin,
does not accept the result of the installation is unsuccessful and request a return or negative feedback!
//////////If in doubt please contact the owner to buy the finished product!
//////////Like the difference in assessment of buyers,
//////////please pass shop reserves the right to choose the buyer!

Note:
Please don't mind,
During the manufaturing process, it can have small scratchs.