FNDS DSO-TC2 Oscilloscope Transistor Tester User Manual

Oscilloscope
Transistor Tester
DSO-TC2

SAFETY INSTRUCTIONS

• Please read the manual carefully before use
• Do not use the instrument in a flammable and explosive environment
• Used batteries and discarded instruments replaced by instruments cannot be disposed of with household waste. Please handle it in accordance with relevant national or local laws and regulations
• When there is any quality problem with the instrument or when there is a question about using the instrument, You can contact “Finiris-FNIRSI” online customer service or the manufacturer, We will solve it for you as soon as possible

PRODUCT INTRODUCTION

• This product ingeniously integrates a digital oscilloscope, electronic component tester, PWM signal generator, and other functions into one. Equipped with large-size color dot matrix TFT display. Built-in rechargeable lithium battery. Bring more practical functions to users with a small size, Also has good portability
• This instrument is especially suitable for the fast pairing of transistors, identification of mixed surface mount and wordless components, and preliminary screening of small batch components
• “Mos Test” mode can test various types of transistors, and can identify device type, pin polarity, hFE, turn-on voltage, junction capacitance; can test capacitance, resistance, inductance components, etc
• This instrument is especially suitable for the fast pairing of transistors, identification of mixed surface mount and wordless components, and preliminary screening of small batch components
• “Oscilloscope” mode to test the signal waveform of the circuit
• Support online operation with a computer, you can refresh the official firmware by yourself and complete the upgrade

TECHNICAL PARAMETER

3.1 FNIRSI DSO-TC2 Equipment Parameters

The oscilloscope has a real-time sampling rate of 2.5MS/s and a 200kHz bandwidth
With a complete trigger function (Single, Normal, Automatic), it can be used freely for both periodic analog signals and aperiodic digital signals
Up to ±400V voltage signal can be measured
Equipped with efficient one-key AUTO, the measured waveform can be displayed without cumbersome adjustment
Self-contained 80kHz /5.0V PWM wave test signal source with an adjustable duty cycle

3.2 Specifications Of Oscilloscope Mode

10:1 probe: 800Vpp (±400V)
Vertical sensitivity| 10mV/Div ～ 10V/Div (in 1-2-5 increments)
Vertical displacement| Adjustable, with an indication
Horizontal time base range| 10μs/Div ～ 500s/Div (in 1-2-5 increments)
Trigger mode| Automatic, Regular, and Single
Trigger type| Rising edge, falling edge
Trigger level| Adjustable, with an indication
Waveform freeze| Yes (HOLD function)
Automatic measurement| Maximum, minimum, average, RMS, peak-to-peak, frequency, period, duty cycle
PWM output| FRQ: 0～80KHz, Duty cycle: 0～100%, Amplitude: 5.0V

3.3 Technical Parameters Of Transistor Detector

• This instrument can automatically identify and measure various transistors. Including NPN and PNP transistors, N-channel and P-channel field effect transistors, junction field effect transistors, diodes, double diodes, thyristors, etc., and passive components such as resistors, inductors, capacitors, etc
• Automatic detection of pin definitions
• It can automatically parse the infrared code of the NEC protocol
• Other functional modes: include circuit continuity test, 0~16V input voltage measurement, PWM output, 0~24V Zener diode measurement, DS18B20 temperature sensor measurement, DHT11 temperature and humidity sensor measurement, etc

emitter reverse cut-off current Ice, Ices, protection diode forward voltage drop Uf,1
Diode| Forward voltage
drop <5V| Forward Voltage Drop, Junction Capacitance, Reverse Leakage Current 2
Zener diode| 0.01~4.5V| (1-2-3 test area) forward voltage drop, the reverse breakdown voltage
0.01~24V| (K-A-A test area) reverse breakdown voltage
FET| JFET| Gate capacitance Cg, drain current Id at Vgs, protection diode forward voltage drop Uf  4
IGBT| Drain current Id at Vgs, protection diode forward voltage drop Uf 4
MOSFET| Turn-on voltage Vt, gate capacitance Cg, drain-source resistance Rds, protection diode forward voltage drop
Uf 4
SCRS| Turn-on voltage <5V, gate trigger current <6mA| Gate voltage
---|---|---
Triac
Capacitance| 25pF~100mF| Capacitance value, loss factor Vloss 7.5
Resistance| 0.010~50M0| resistance
Inductance| 10uH~1000uH| Inductance value, DC resistance .6
Battery| 0.1~4.5V| Voltage value, positive and negative polarity
Input voltage| 0~16V| Voltage value
DS18B20| | Temperature
DHT1| | Humidity
PWM output| 1.5kHz—9.99MHz|
Infrared remote
control decoding| NEC protocol infrared code| Display user code and data code, and display the corresponding infrared waveform
Note 1: Ices, Ice, and Uf are displayed only when valid
Note 2: Junction capacitance and reverse leakage current are displayed only when valid
Note 3: The turn-on or turn-off voltage of the FET must be less than 5V
Note 4: Displayed only when there is a protection diode
Note 5: Vloss is only displayed when valid
Note 6: Two-pin component and inductance measurement when the resistance is less than 2.1k0

BUTTON & INTERFACE

4.1 Button Function

Enter or exit the system
Long Press| Enter the calibration confirmation interface – press the OK button to enter the calibration mode(long press AUTO again to cancel the calibration)
| Short Press| Select the operation object| Confirm current
Long Press| operation Fast-moving
| Short Press| Move up/change mode| Move/change mode
Long Press| Move up continuously
| Short Press| Move down/Change mode
Long Press| Move down continuously
| Short Press| Pause/Start Waveform| Start a new measurement
Long Press| In the vertical voltage gear position, long press to switch X1/X10.
In other cases, long press to show/ close detailed parameters

Note: In DSO oscilloscope mode, the parameters will be automatically saved if there is no key operation for 0.5 seconds

• The locking IC seat is divided into a 1-2-3 area and a K-A-A area (as shown above)
• The locking IC seat has a total of 14 jacks. Each jack is marked 1, 2, 3, K, A. If the labels are the same, they are connected internally and have the same function
• There is a locking lever on the left end of the socket. The socket is relaxed when standing up. Insert or remove the component under test at this time. When turned down, the socket is locked and tested
• After inserting the element under test and locking. Press the 【TEST】 button to test. The tester automatically identifies the pin name of the component and the test point where it is located and displays it on the screen
• When testing 2-pin components, it can be inserted into any two holes with different labels in the 1-2-3 area.No need to distinguish
• When testing 3-pin components, it can be inserted into any three holes with different numbers in the 1-2-3 area.No need to distinguish
• The K-A-A jack is a special area for withstand voltage testing. There is about 30V DC high voltage inside. K is positive and A is negative. It is used to withstand voltage test and cannot be mixed. The positive electrode of the component under test, such as the Zener diode, is inserted into A, and the negative electrode is inserted into K

NOTE！

1. Discharge the capacitor before measuring the capacitor, otherwise, it may burn the instrument
2. A live test is not recommended

4.3 Signal Interface

• There are 3 MCX coaxial sockets evenly distributed on the top surface, and their outer rings are connected to the same ground. The uses are:
  【IN(0~16V)】⸺Test voltage input port, the core wire is positive, and the maximum measured voltage cannot exceed DC16V
  【PWM】⸺PWM square wave signal output port, output square wave signal with adjustable pulse width
  【DSO】⸺oscilloscope test signal input port, the maximum measurement of the voltage shall not exceed ±40V (probe X10 shall not exceed ±400V)

• For wired testing, you should use test wire with MCX plugs to connect to the instrument

4.4 Charging Interface

• The instrument is powered by a built-in lithium battery. There is a USB Type-C charging port on the bottom. Connect to 5V charger for charging
• The indicator light is solid red when charging, and the indicator light is solid green when fully charged

NOTE!
In order to avoid static electricity damage to the instrument or the component under test, do not use it while charging

5.1 TFT Display

1. PWM square wave signal output frequency, the output range is adjustable from 1-80KHz
2. PWM square wave signal output duty cycle, the output range is 0-100% adjustable
3. Trigger edge indicator
4. Trigger mode indicator icon. Auto means automatic triggering. Single means a single trigger. Normal means normal trigger
5. Baseline indicator icon. This icon indicates the position that the current the position is OV voltage
6. Trigger voltage indicator icon
7. Vertical sensitivity.Indicates the voltage represented by one grid in the vertical direction
8. 1X/10X mode indicator icon.This must be consistent with the 1X/10X switch setting on the probe handle. If the probe is in 1X gear, then the oscilloscope should also be set to 1X gear.1X measures ±40V voltage, 10X measures ±400V voltage
9. Horizontal time base.Indicates the length of time represented by one grid in the horizontal direction
10. Input coupling mode indicator icon.AC stands for AC coupling.DC stands for direct current coupling
11. Run pause indicator.RUN means run.STOP means pause

5.2 Real-time Measurement Parameters
Long press the 【TEST】 button to display/hide the 8 real-time measurement parameters displayed in the upper part of the screen:

Note: When the waveform amplitude exceeds the screen,these measurements will produce large errors

5.3 Oscilloscope Probe
Insert the oscilloscope probe with the MCX plug into the top 【DSO】 jack.First, adjust the attenuation file on the probe. Clip the probe’s ground to the “reference ground” of the circuit under test
The probe tip or hook is securely connected to the node under test in the circuit. Observe the voltage waveform of the measured point on the screen

NOTE！

1. The attenuation ratio of the probe should match the voltage of the signal under test. Please do not measure voltage signals that exceed the maximum range
2. When measuring the signal exceeding the safe voltage, the human body should not touch the exposed metal part of the instrument to avoid electric shock injury

TRANSISTOR TESTER MODE FEATURES

6.1 Operation And TFT Display

• After entering this mode, the test will start automatically. Displays the internal Lithium battery voltage in the “Testing” state
• After the test results come out, you can click the 【TEST】 button to perform the next test at any time

6.2 Zone 1-2-3 Test Seat
Choose the right socket after inserting and locking the pins of the components under tests such as transistors, resistors, capacitors, and inductors. Click 【TEST】 to start the test, After waiting for 1~3 seconds.Test results will be displayed on the screen

1. Protection diodes inside bipolar transistors and MOSFETs can be detected
2. Measure the current amplification factor (hFE) of bipolar transistors and the turn-on voltage (Uf) of the emitter junction. Darlington transistors can be identified by high threshold voltage and high current amplification factor
3. The parameters Ice, Ices, and Uf of the measuring triode will only be displayed when the measurement is valid
4. The diode’s equivalent capacitance C and reverse leakage current Ir are displayed only when the measurement is valid
5. The turn-on or turn-off voltage of the FET should be less than 5V. Otherwise, the measured results are only its equivalent parameters (diodes, capacitors, etc.)
6. The turn-on voltage of the thyristor should be less than 5V.In addition, the trigger current for maintaining conduction must be less than 6mA, otherwise, it cannot be measured correctly
7. The vLoss displayed when measuring the capacitance means loss and attenuation. The larger the value, the worse the capacitance performance, and the closer it is to scrap. For capacitors below 20pF, the common method is to test a 20pF capacitor in parallel
8. When the measurement range of the inductance is 10μH-1000uH, the inductance measurement should be performed when the resistance is less than 2.1kΩ. Air core coils and power inductors cannot directly measure inductance. It is recommended to connect a suitable color ring inductance test in series
9. The output current of the test socket is 6MA.SCRs and Darlingtons that require a larger current drive cannot be tested
10. The LED is detected as a diode and the forward voltage drop is higher than normal. Double LEDs are detected as double diodes. At the same time, the LED will flash

6.3 Zone K-A-A Test Seat

• Insert the positive pole of the component under test, such as the Zener diode, into A, and the negative pole into K.After locking the socket, click 【TEST】 to start the test.The maximum range of the Zener tube that this instrument can measure is 24V.For details, please refer to the description of 【 7、EXTENDED TESTING CAPABILITIES 】

6.4 Infrared Remote Control Decoding
While the tester is waiting to test.Aim the IR remote control at the “IR” mark on the panel of the tester. Press the remote control button. The instrument automatically starts to receive infrared signals and perform decoding processing. After the decoding is successful. the user code and data code will be displayed. And display the corresponding infrared waveform If decoding fails or cannot be decoded, the user code and data code are not displayed. At this time, if you are in the tester interface, you cannot enter the infrared decoding interface. If it is in the infrared decoding interface, the last successful decoding information will still be displayed
Note: This instrument only supports infrared code decoding of NEC protocol

6.5 System Settings

• Press 【MENU】 button in TC2 component tester mode.It will enter the setting menu page, press the direction 【Up】 and 【Down】 buttons to select the item.Press【OK】 to adjust parameters or switch states
• The items that can be set are as follows:

1. Boot LOGO Off/On
2. System language English/Chinese
3. No operation for 1 minute: Auto Off / None
4. Adjust system volume.
5. Adjust the screen backlight brightness

EXTENDED TESTING CAPABILITIES

• After pressing the 【MENU】 button to enter the setting menu. Press 【TEST】button again to enter the function page. Extended test items and calibration function items are provided here

1. Continuity Test: Use test sockets 1 and 2 of the test socket to carry out a continuous resistance test. If the circuit is low resistance, it is judged as “on” and a buzzer sounds
2. Voltage Test: The MCX test line needs to be inserted into the top jack【IN (0~16V)】 to test the voltage between the test lines
3. PWM Output: adjustable frequency and duty cycle, output from the top 　MCX jack 【PWM】
4. Zener Diode: Use the test seat K-A-A area for testing. See description in 【6.3】
5. DS18B20: Follow the on-screen instructions to insert the temperature sensor into the test seat and measure
6. DHT11: Follow the on-screen prompts to insert the temperature and humidity sensor into the test seat to measure
7. Autocal: Insert the three-pin short-circuit wire into the 1-2-3 jack of the test socket.Press 【OK】 button to select Start. Press the 【OK】 button again to start calibration. During the calibration process, disconnect the short wire according to the prompt. When the progress bar reaches 100%, the calibration of the current model of the instrument is completed. No further  action required

NOTE！

• The instrument uses a USB analog U disk for firmware upgrade. The simulated U disk cannot be used to save or transfer other data. For firmware upgrade and charging only
• Firmware comes in a variety of file formats. Different operating steps need to be selected according to the situation
• The computer system required for the upgrade is Windows 10 or above

1. CH UPGRADE (Digital Oscilloscope)
   a. Use the Type-C data cable with D+ and D- to connect the instrument and the computer in the off state
   b. Wait for about 2s after booting. Observe whether there is a U disk named “CH BOOT” on the computer. If it does not exist, repeat steps A and B
   c. Copy the firmware file starting with CH into the U disk. After the upgrade is complete, you will see an upgrade prompt at the bottom of the screen:
   Update completed
   NOTE: 1. The firmware starting with the prefix “CHD” is the firmware of the DSO  oscilloscope part. The firmware starting with the prefix “CHT” is the firmware of the TC2 transistor part
   2. Only one firmware can be upgraded each time. If you need to upgrade multiple firmwares, you need to repeat steps A, B, and C.

2. MM UPGRADE (Transistor Detector)
   a. Use the Type-C data cable with D+ and D- to connect the meter and the computer in the off state
   b. Press and hold the down arrow key, turn it on, wait for about 2s, and observe whether there is a U disk named “MM BOOT” on the computer (at the same time, the lower left corner of the screen displays: MM Boot), if not, repeat steps A and B
   c. Copy the firmware file starting with MM into the U disk to complete the upgrade
   NOTE: After the upgrade is complete, the system will automatically restart. If you do not need to upgrade, you can short press the power button to reset

COMMON PROBLEM

1. How to judge whether the battery is fully charged?
   A： When the battery is fully charged, the charging indicator will change from red to green

2. Why does the tested waveform keep shaking left and right and cannot be fixed?
   A： The trigger voltage needs to be adjusted, that is, the yellow arrow on the right. In trigger mode, press the up and down keys to adjust the trigger voltage.
   After adjusting the yellow pointer between the upper and lower part of the waveform, the waveform can be triggered and fixed

3. Why is there no waveform when measuring a battery or other DC voltage?
   A: The battery voltage signal is a stable DC signal, and there is no curve waveform. When adjusting the vertical sensitivity in DC coupling mode, there will be an upward or downward offset line waveform. If it is AC coupled, there is no waveform no matter how you adjust it

4. Why is the measured mains 220V waveform not a very standard sine wave, with distortion?
   A: The main power grid is generally polluted and contains more high-order harmonic components. The superposition of these harmonics on the sine wave will show a distorted sine, which is a normal phenomenon.
   Generally, the mains waveform is distorted and has nothing to do with the oscilloscope itself

5. Why is there no signal input, The baseline (OV) on the screen and the arrow on the left (OV indicated) are not the same, there is a relatively large offset?
   A: Please unplug the probe and USB cable. Press the 【AUTO】 button to enter the calibration confirmation interface, Then click the 【OK】 button to enter the automatic calibration

6. Why do the results obtained by measuring MOSFET and IGBT are diodes, capacitors, and other parameters?
   A: Because the turn-on or turn-off voltage of the MOSFET or IGBT is greater than 5V (the maximum supply voltage of the chip)As a result, the MOSFET or IGBT cannot be turned on or off normally. Therefore, only its equivalent parameters can be measured

NOTE

1. After receiving the device, please use it after it is fully charged

2. When measuring high voltage, it is forbidden to touch any metal part of the oscilloscope to avoid the risk of electric shock

3. It is forbidden to use it while charging the device

4. Do not place the machine in a place that is unstable or may be subject to strong vibrations

5. Do not place the machine in places with high humidity, dust, direct sunlight, outdoors, or near heat sources

6. USB firmware upgrade only supports WIN10 and above. Drag in files other than release firmware is prohibited. May cause irreversible consequences

7. The instrument is powered by a built-in 3.7V rechargeable lithium battery, which can be used for a long time. Please use the power adapter to extend battery life

8. When not in use for a long time, the battery should be discharged to 3.7V before storage

9. When using the oscilloscope mode, pay attention to the selection of the gear.
   The gear of the oscilloscope should be consistent with the gear of the probe.

10. When calibrating, The BNC probe needs to be unplugged, or the positive and negative poles of the probe are short-circuited

PRODUCTION INFORMATION

Product name: Oscilloscope Transistor Tester
Brand / Model: FNIRSI / DSO-TC2
Manufacturer: Shenzhen FNIRSI Technology Co., Ltd.
Website: www.fnirsi.cn
Address: Building C, Weihuada Industrial Park, Dalang Street, Longhua District,
Shenzhen, Guangdong, China

www.fnirsi.cn

References

• Pettersen Area – Queen Team
• icon.AC
• 菲尼瑞斯科技

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