ZOYI ZT-XT1 2-in-1 Digital Multimeter Transistor Tester User Manual

1. Acabatview

The ZOYI ZT-XT1 is a 2-in-1 digital measuring instrument combining a transistor tester and a high-precision multimeter. It features an elegant design, compact size, portability, and flexible operation. It is equipped with a 2.4-inch TFT high-definition display and supports one-button intelligent switching between transistor test mode and multimeter mode.

In transistor test mode, it provides professional measurement and analysis of various semiconductor components, including transistors, diodes, bipolar transistors, and field-effect transistors.

In multimeter mode, it adopts a 25,000-count high-precision display, capable of simultaneously displaying measurement values and waveform curves.

This product offers users a “one device, multiple functions, precise and efficient" measurement solution and is an essential tool for electronic repair, education, and R&D applications.

Description: This image shows the ZOYI ZT-XT1 device, highlighting its dual functionality as both a transistor tester and a multimeter. The display shows a transistor test result on one unit and a voltage measurement on another, emphasizing its versatility.

2. Informació de seguretat

To avoid possible electric shock, fire, or personal injury, please read the safety precautions carefully before use.

• Before using the product, check whether the enclosure is cracked or damaged. Carefully inspect the insulation around the input terminals.
• Use the correct input terminals and measurement ranges as specified in this User Manual.
• Do not use this product in explosive gas, vapor, or humid environments.
• Keep your fingers behind the probe finger guards when using the test leads.
• Do not touch unused input terminals when the instrument is connected to a circuit.
• Disconnect the test leads from the circuit before changing measurement ranges.
• DC voltages above 36 V or AC voltages above 25 V may cause serious personal injury. Use caution to avoid electric shock.
• Select the correct measurement function and range to avoid damage to the instrument or personal injury.
• Do not operate the product with the front or rear cover open.
• When the battery level is low, measurement accuracy may be affected. Recharge promptly.
• Keep the device stable during use and avoid severe shaking.

3. Contingut del paquet

The ZOYI ZT-XT1 package includes the following items:

• ZOYI ZT-XT1 Transistor Tester Multimeter
• Cables de prova (vermell i negre)
• Cable de càrrega USB
• SMD Test Board
• Through-hole Test Board
• User Manual (PDF version available for download aquí)
• Bossa d'emmagatzematge

Description: This image displays all items included in the ZOYI ZT-XT1 product package, such as the main unit, test leads, USB cable, SMD and through-hole test boards, and the user manual.

4. Instrument Panel Description

Familiarize yourself with the layout and functions of the ZOYI ZT-XT1 instrument panel:

Description: This image provides a detailed view of the ZOYI ZT-XT1's front panel, labeling key components such as the display screen, power button, function key area, input terminals, and USB port.

Descripció de la funció clau:

1. Clau de poder
   • Long press (2 seconds): Power ON/OFF
   • Short press (Multimeter mode): Clear waveform record
2. RANGE / REL Key
   • Short press: Manual range selection
   • Long press: Enter relative measurement mode
3. Tecla de fletxa cap amunt
   • Long press: Switch between multimeter and transistor test modes
   • Short press (settings): Adjust values or move menu selection
   • Short press (multimeter): Switch current ranges
   • Short press (transistor mode): Start test
4. Tecla de fletxa avall
   • Short press (multimeter): Switch voltagrangs e
   • Short press (settings): Decrease value or move right
   • Long press (transistor mode): Enter diode test
   • Short press (transistor mode): Enter toolbox
5. Clau de retorn
   • Return or exit settings
   • Switch resistance, capacitance, diode, continuity, and temperature ranges in multimeter mode
6. OK / MENU Key
   • Long press: Enter system settings
   • Short press (settings): Confirm
   • Short press (multimeter): Save data

5. Configuració

5.1. Transistor Test Setup

To accommodate rapid testing of components with different packages, the transistor test input terminals include locking sockets and SMD sockets.

• Locking sockets: Used for leaded components.
• SMD sockets: Used for surface-mount components.

Description: This image demonstrates how to use the SMD test board for efficient component identification, showing a hand inserting a component into the board.

Description: This image shows the ZT-XT1 with its replaceable test boards, including both an SMD test board and a through-hole test board, designed to meet different testing needs.

Measurement Socket Details:

The locking socket is divided into a 1–2–3 area and a K-A-A area.

• Sockets marked with the same number (1, 2, or 3) are internally connected.
• The lever on the left side loosens the socket when raised and locks it when lowered.
• Two-pin components may be inserted into any two different numbered sockets.
• Three-pin components may be inserted into any three different numbered sockets.
• The K-A-A sockets are dedicated for withstand voltage testing and contain DC high voltage per sobre de 30 V.
• K: Positive, A: Negative. Do not mix with other tests.

5.2. Multimeter Input Terminals

The multimeter features dedicated input terminals for various measurements:

Description: This diagram illustrates the input terminals of the ZT-XT1 multimeter, showing the connections for current, common (return), and other measurements like voltage, resistance, capacitance, frequency, continuity, diode, and temperature.

1. Input terminal for current measurement (≤ 10 A)
2. Input terminal for current measurement (≤ 250 mA)
3. Terminal comú (de retorn) per a totes les mesures
4. Input terminal for the following measurements:
   Vol AC/DCtage, Resistance, Capacitance, Frequency, Continuity, Diode, Temperature

6. Instruccions de funcionament

6.1. Transistor Test Operation

The ZT-XT1 can automatically identify and test various semiconductor components.

1. Premeu llargament el botó MODE key to switch to transistor test mode.
2. Insert the component into the appropriate socket (locking or SMD).
3. Premeu breument PROVA key to start testing. Parameters and pin configuration will be displayed automatically.
4. Read the measurement results on the screen.

Notes for Transistor Testing:

• For two-pin components, insert the pins into any two of (1-2, 1-3, or 2-3).
• For three-pin components, insert the pins into (1-2-3).
• For Zener diodes, insert the positive terminal into A and the negative terminal into K.

Description: This image shows the ZT-XT1 automatically identifying components like diodes, chip inductors, and transistors, displaying their type and parameters on the screen.

Transistor Test Display Interface:

The display provides comprehensive information during transistor testing:

Description: This image illustrates the ZT-XT1's display during a transistor test, showing the component type (PNP transistor), pinout diagram, hFE (gain), Vbe (base-emitter voltage), and Ic (collector current).

• Nom del component: Automatically identifies and displays the component name (e.g., transistor, diode, field-effect transistor).
• Component Symbol: Recognizes the component and displays its symbol and pin configuration.
• Component Parameters: Displays relevant parameters during measurement (e.g., hFE, Vbe, Ic for transistors; Vf, C, Ir for diodes).
• Indicador de nivell de bateria: Shows the current power supply/battery status.

Descodificació IR:

The ZT-XT1 supports accurate IR decoding. Insert the IR probe and press 'IR Decode' to display the decoded signal clearly.

Description: This image shows the ZT-XT1 performing IR decoding, displaying the user code and data code on the screen, along with a visual representation of the decoded signal.

6.2. Funcionament del multímetre

The ZT-XT1 offers a high-precision 25,000-count multimeter with various measurement functions.

Description: This image displays the ZT-XT1 in multimeter mode, showing a voltage measurement with a 25,000-count display and a waveform graph, indicating its high precision and data visualization capabilities.

Multimeter Display Interface:

• Visualització de símbols de mesura: Shows the current measurement type (AC, DC, Resistance, Capacitance, Diode, Continuity).
• Pantalla principal: Displays the multimeter measurement value, up to 25,000 counts.
• AUTOMÀTIC: Indicates auto-ranging mode.
• Max/Min/AVG: Displays maximum, minimum, and average measured values.
• FreQ: Displays the measured frequency value.
• Àrea de visualització de la forma d'ona: Automatically generates a waveform curve based on changes in the measured value.

Mètodes de mesura:

Volum AC / DCtage Mesura:

1. Insert the black probe into COM and the red probe into V Ω Hz.
2. Seleccioneu el vol adequattage range: DCV, ACV, DC mV, or AC mV.
3. Touch the probes to the correct test points.
4. Llegeix el voltage value displayed. Frequency will be shown simultaneously during AC voltage mesura.

Avís:

• Do not exceed the rated maximum input voltage.
• Eviteu el contacte amb alt voltage circuits during measurement.

Mesura de la resistència:

1. Insert the black probe into COM and the red probe into V Ω Hz.
2. Select the resistance range.
3. Toqueu les sondes als punts de prova.
4. Read the resistance value displayed.

Mesura de corrent AC/DC:

1. Insert the black probe into COM. Insert the red probe into 10A or mA terminal according to the expected current value.
2. Select DCA or ACA mode.
3. Break the circuit and connect the meter in series.
4. Read the current value displayed.

Avís:

• Do not exceed the maximum rated current.
• If the current value is unknown, start with the A terminal.
• No introduïu mai el voltage in current measurement mode.

Mesura de díodes:

1. Select diode mode.
2. Connect the red probe to the diode anode and black probe to the cathode.
3. Llegeix el vol endavanttage gota.
4. “OL” indicates reverse polarity or a faulty diode.

Avís:

• No aplicar voltage in continuity or diode mode.
• Disconnect circuit power and discharge capacitors before testing.

Prova de continuïtat:

1. Insert probes into COM and V Ω Hz.
2. Select continuity mode.
3. If the buzzer sounds, the circuit is shorted.

Mesura de la capacitat:

1. Insert probes into COM and V Ω Hz.
2. Select capacitance mode.
3. Connect probes to the capacitor terminals.
4. Read the stable capacitance value.

Mesura de la temperatura:

1. Insert the thermocouple black plug into COM, red plug into V Ω Hz.
2. Select temperature mode.
3. Touch the probe to the test point.
4. Read the temperature value.

Description: This video demonstrates the ZOYI ZT-XT1 in action, showcasing its ability to test BJTs, automatically identify NPN/PNP transistors, display pinouts, gain (hFE), leakage current, threshold voltage, on-resistance, junction capacitance, and perform various multimeter functions like voltage, current, resistance, capacitance, and continuity measurements.

7. Configuració del sistema

To access and adjust system settings:

1. Premeu el botó MENÚ key to enter system settings.
2. Use the arrow keys (Up/Down) to select and adjust values.
3. Premeu MENÚ per confirmar i Tornar per sortir.

System Settings List:

8. Actualització del firmware

1. With the device powered off, press and hold the GAMMA i, a continuació, premeu la tecla Poder key. The screen will display “USB-Boot”.
2. Connect the device to a computer using a TYPE-C cable. A TesterMeter U-disk will appear.
3. Copy the upgrade firmware into the U-disk. The upgrade will start automatically. Do not operate the device during the upgrade.
4. When the progress reaches 100%, the upgrade is complete.

Description: This image shows the ZT-XT1 connected via USB-C for firmware upgrade, indicating its lithium rechargeable battery and upgrade capability.

9. Manteniment

9.1. Neteja

• Netegeu el tancament amb anunciamp drap i detergent suau.
• Do not use corrosive agents or solvents.
• Dust or moisture in the input terminals may affect measurement accuracy.
• Before cleaning, disconnect all input signals.

9.2. Càrrega de la bateria

When the battery indicator shows low power, recharge promptly.

Mètodes de càrrega:

• Connect TYPE-C cable to a DC 5 V adapter.
• Connect TYPE-C cable to a computer USB port.

Indicador de càrrega:

• Charging: Indicator light red
• Fully charged: Indicator light blue

10. Especificacions tècniques

10.1. General Multimeter Specifications

10.2. Especificacions mecàniques

10.3. Especificacions ambientals

10.4. Multimeter Measurement Specifications

10.5. Transistor Tester Technical Specifications

11. Garantia i responsabilitat

From the date of purchase, this product is covered by a one-year warranty.

This warranty does not cover damage to general accessories, blown fuses, or damage caused by accident, negligence, misuse, modification, contamination, or abnormal operating environments.

Nota: If the device freezes or becomes unresponsive during use, please restart it.

12. Consells d'usuari

• Maximitzar la durada de la bateria: Adjust the 'Auto Power Off' setting in the system menu to conserve battery during prolonged use.
• Esborra la pantalla: Utilize the 'Backlight Brightness' setting to ensure optimal visibility in various lighting conditions.
• Identificació de components: For quick identification, ensure components are correctly inserted into the appropriate test sockets (SMD or through-hole) before initiating a test.
• Lectures precises: Always ensure test leads are securely connected and the correct measurement range is selected to prevent inaccurate readings or potential damage.

13. Solució De Problemes

If you encounter issues with your ZOYI ZT-XT1, consider the following:

• Dispositiu que no respon/està bloquejat: If the device freezes or becomes unresponsive, restart it by long-pressing the Power key.
• Inaccurate Multimeter Readings: Check the battery level; low battery can affect accuracy. Ensure input terminals are clean and free from dust or moisture. Verify that the correct measurement range is selected.
• Transistor Test Errors: Ensure the component is correctly inserted into the appropriate socket and that the pins are making good contact.
• Problemes d'actualització del firmware: If a firmware update fails, ensure the TYPE-C cable connection is stable and that the device is not operated during the update process. Try re-copying the firmware file.