ZOYI ZT-M1 Digital Multimeter Instruction Manual

1. Introducció

The ZOYI ZT-M1 is a professional 8000-count digital multimeter designed for accurate and reliable electrical measurements. Featuring True RMS, auto/manual ranging, and a large LCD backlight display, it is suitable for a wide range of applications including AC/DC voltage, AC/DC current, resistance, capacitance, frequency, diode testing, continuity, and temperature measurements. Its Non-Contact Voltage (NCV) detection function enhances safety by allowing voltage detection without direct contact.

2. Informació de seguretat

WARNING: To avoid possible electric shock, fire, or personal injury, please read all safety information before you use the product. Improper use can lead to severe injury or death.

• Assegureu-vos sempre que el multímetre estigui en bon estat de funcionament abans d'utilitzar-lo. Inspeccioneu els cables de prova per detectar danys.
• No apliqueu més del volum nominaltage, as marked on the multimeter, between the terminals or between any terminal and earth ground.
• Tingueu precaució quan treballeu amb voltagper sobre de 30 V CA RMS, 42 V pic o 60 V CC. Aquests voltagsuposen un risc de xoc.
• Desconnecteu sempre l'alimentació del circuit i descarregueu totes les emissions d'alt volum.tagcondensadors abans de realitzar mesures de resistència, continuïtat, díodes o capacitància.
• Do not use the multimeter if it operates abnormally. Protection may be impaired.
• Do not operate the multimeter around explosive gas, vapor, or dust.
• Utilitzeu els terminals, la funció i el rang adequats per a les vostres mesures.
• Substituïu la bateria tan bon punt aparegui l'indicador de bateria baixa per evitar lectures incorrectes.
• Complir els codis de seguretat locals i nacionals.

3. Producte acabatview

The ZOYI ZT-M1 Digital Multimeter features a robust design with a clear LCD display and intuitive controls.

Figure 1: ZOYI ZT-M1 Digital Multimeter - Front Panel Layout

Key components and functions:

• Pantalla LCD: Mostra lectures de mesura, unitats i indicadors de funció.
• Prova NCV: Vol. Sense contactetage detecció.
• Relative Value Measurement: Mesura la diferència entre un valor emmagatzemat i la lectura actual.
• SELECT Switching: Toggles between different functions within a rotary switch position (e.g., AC/DC, Diode/Continuity).
• Rotary Switching: Main dial to select measurement functions (Voltage, Current, Resistance, Capacitance, Frequency, Temperature, etc.).
• MAX / MIN: Registra lectures màximes i mínimes.
• Data Hold / Backlight Pilot Lamp: Freezes the current display reading; activates backlight.
• Llanterna: Il·lumina la zona de mesura.
• Measuring 20A Input: Terminal for high current measurements.
• Measuring mA μA Battery Input: Terminal for low current measurements and battery testing.
• COM Measurement Input: Terminal comú (negatiu) per a totes les mesures.
• VΩHz Input: Terminal for voltage, resistance, frequency, capacitance, and diode measurements.

Figure 2: ZOYI ZT-M1 Digital Multimeter with Kickstand

4. Configuració

4.1 Instal·lació de la bateria

The ZT-M1 requires two 1.5V AA batteries (not included). To install or replace batteries:

1. Assegureu-vos que el multímetre estigui apagat i desconnecteu tots els cables de prova dels terminals d'entrada.
2. Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
3. Feu servir un tornavís per afluixar el(s) cargol(s) de la tapa de la bateria.
4. Remove the cover and insert the two 1.5V AA batteries, observing the correct polarity (+ and -).
5. Torneu a col·locar la tapa de la bateria i fixeu-la amb el(s) cargol(s).

4.2 Connexió dels cables de prova

Always connect the black test lead to the COM (common) terminal. Connect the red test lead to the appropriate input terminal based on the measurement you intend to perform:

• VΩHz: Per al voltage, resistance, frequency, capacitance, and diode measurements.
• mA μA: For low current (milliampere/microampere) measurements and battery testing.
• 20A: For high current (ampere) measurements.

5. Instruccions de funcionament

Before any measurement, ensure the test leads are correctly connected and the rotary switch is set to the desired function.

5.1 AC/DC Voltage Mesura

1. Connect the red test lead to the VΩHz terminal and the black test lead to the COM terminal.
2. Turn the rotary switch to the 'V' (Voltage) position. The multimeter will typically auto-range and detect AC or DC. If manual selection is needed, press the 'SELECT' button.
3. Toqueu les sondes de prova als punts del circuit on voleu mesurar el volumtage.
4. Llegeix el voltage valor a la pantalla LCD.

Figure 3: ZT-M1 in use, measuring AC voltage.

5.2 Mesura de corrent AC/DC

1. IMPORTANT: To measure current, the multimeter must be connected in series with the circuit. Disconnect power to the circuit before connecting the multimeter.
2. Connect the black test lead to the COM terminal. Connect the red test lead to the mA μA terminal for low currents or the 20A terminal for high currents.
3. Turn the rotary switch to the 'A' (Ampere) position. Press 'SELECT' to choose AC or DC if necessary.
4. Break the circuit and connect the test leads in series with the load.
5. Apliqueu alimentació al circuit i llegiu el valor del corrent.

5.3 Mesura de la Resistència

1. Assegureu-vos que el circuit estigui desenergitzat i que tots els condensadors estiguin descarregats.
2. Connect the red test lead to the VΩHz terminal and the black test lead to the COM terminal.
3. Turn the rotary switch to the 'Ω' (Resistance) position.
4. Touch the test probes across the component or circuit segment to measure resistance.
5. Llegiu el valor de la resistència a la pantalla LCD.

5.4 Mesura de la capacitat

1. Assegureu-vos que el condensador estigui completament descarregat abans de fer la prova.
2. Connect the red test lead to the VΩHz terminal and the black test lead to the COM terminal.
3. Turn the rotary switch to the 'Capacitance' position (often shared with frequency or diode).
4. Toqueu les sondes de prova a través dels terminals del condensador.
5. Llegiu el valor de la capacitat a la pantalla LCD.

5.5 Mesura de la freqüència

1. Connect the red test lead to the VΩHz terminal and the black test lead to the COM terminal.
2. Turn the rotary switch to the 'Hz' (Frequency) position.
3. Touch the test probes to the points where you want to measure frequency.
4. Llegiu el valor de freqüència a la pantalla LCD.

5.6 Prova de díodes i continuïtat

1. Assegureu-vos que el circuit estigui desenergitzat.
2. Connect the red test lead to the VΩHz terminal and the black test lead to the COM terminal.
3. Turn the rotary switch to the 'Diode/Continuity' position. Use 'SELECT' to switch between diode test and continuity.
4. Prova de díode: Place probes across the diode. A good diode will show a voltage drop in one direction and open circuit in the other.
5. Prova de continuïtat: Place probes across the circuit. A beep indicates continuity (low resistance).

5.7 NCV (Volum sense contacte)tage) Detecció

1. Turn the rotary switch to the 'NCV' position.
2. Move the top part of the multimeter near the conductor you want to test.
3. Si AC voltage is detected, the NCV indicator light will illuminate, and the buzzer will sound. The intensity of the sound and light may vary with voltage força.

5.8 Mesura de la temperatura

1. Connect the temperature probe (thermocouple) to the VΩHz and COM terminals, observing polarity.
2. Turn the rotary switch to the '°C/°F' (Temperature) position.
3. Place the tip of the temperature probe on the object or area whose temperature you wish to measure.
4. Read the temperature value on the LCD display. Press 'SELECT' to switch between Celsius and Fahrenheit.

6. Manteniment

• Neteja: Netegeu el cas amb l'anunciamp drap i detergent suau. No utilitzeu abrasius ni dissolvents.
• Substitució de la bateria: Canvieu les piles immediatament quan aparegui l'indicador de bateria baixa.
• Substitució de fusibles: If the current measurement function fails, the fuse may need replacement. Refer to the specifications for the correct fuse type and rating. Always disconnect test leads and power before opening the case.
• Emmagatzematge: If the multimeter is not used for a long period, remove the batteries to prevent leakage and damage. Store in a cool, dry place.

7. Solució De Problemes

If the multimeter is not functioning as expected, try the following common troubleshooting steps:

• Sense pantalla/Pantalla tènue: Comproveu els nivells de les piles i substituïu-les si cal. Assegureu-vos que les piles estiguin inserides amb la polaritat correcta.
• Lectures incorrectes: Verify that the correct function and range are selected. Check test leads for damage or poor connection. Ensure the circuit is properly de-energized for resistance/continuity tests.
• Sense bip de continuïtat: Check if the continuity function is selected. Ensure test leads are making good contact.
• Current Measurement Failure: Check and replace the fuse if blown. Ensure the multimeter is connected in series with the circuit.
• NCV Not Working: Ensure the NCV function is selected. The NCV sensor needs to be close to the AC voltage font.

Si els problemes persisteixen, poseu-vos en contacte amb el servei d'atenció al client.

8. Especificacions

Figure 4: ZOYI ZT-M1 Digital Multimeter Specifications

9. Consells d'usuari

• Auto-Ranging Convenience: The ZT-M1's auto-ranging feature simplifies measurements by automatically selecting the correct range. However, for faster readings on known values, manual ranging can be more efficient.
• Ús de la llum de fons: The display backlight is very useful in dimly lit environments. Remember to turn it off after use to conserve battery life.
• NCV per a comprovacions ràpides: Use the NCV function for a quick and safe preliminary check for live wires before proceeding with contact measurements.
• Conservació de dades: When taking measurements in hard-to-reach areas, use the Data Hold function to freeze the reading on the display for easier viewing.
• Durada de la bateria: Always carry spare AA batteries, especially for professional use, as the multimeter relies on them for all functions.

10. Garantia i Suport

For warranty information, technical support, or service inquiries, please contact the ZOYI Official Store directly through the platform where the product was purchased. Keep your purchase receipt as proof of purchase.