Jesverty HK33D Digital Multimeter User Manual

1. Introducció

The Jesverty HK33D is a versatile 2000-count digital multimeter designed for accurate measurement of various electrical parameters. This instrument is suitable for both industrial and household electrical troubleshooting, including testing household outlets, fuses, batteries, and automotive circuits. It measures AC/DC Voltage, DC Current, Resistance, and performs Diode and Continuity tests. Additionally, it features Live Wire detection, Non-Contact Voltage (NCV) detection, and Temperature measurement capabilities.

Image: The Jesverty HK33D Digital Multimeter being used for various electrical measurements, including circuit board testing, fuse checking, and automotive diagnostics.

2. Informació de seguretat

To ensure safe operation and avoid damage to the meter, please read and follow all safety instructions carefully. This device is rated for CAT III 600V.

• Always ensure the test leads are properly connected and the function dial is set to the correct range before making any measurements.
• Never exceed the maximum input values specified for each range.
• Do not use the meter if it or the test leads appear damaged. Inspect them before each use.
• Turn off power to the circuit under test before connecting or disconnecting test leads, especially when measuring current.
• Aneu amb compte quan treballeu amb volumtagper sobre de 30 V CA RMS, 42 V pic o 60 V CC, ja que representen un perill de descàrrega elèctrica.
• Canvieu les piles immediatament quan aparegui l'indicador de bateria baixa per garantir lectures precises.
• No feu funcionar el mesurador en entorns amb gasos, vapors o pols explosius.

3. Producte acabatview i Característiques

The Jesverty HK33D Digital Multimeter is designed for ease of use and reliability. It features a clear LCD screen, a rotary function dial, and dedicated buttons for various operations.

Image: The Jesverty HK33D Digital Multimeter, showing its orange casing, LCD display, function dial, input jacks, test leads, and included batteries.

Característiques principals:

• 2000 Counts Digital Display: Provides clear and precise readings.
• Mesurament RMS real: Ensures accurate readings for non-sinusoidal waveforms.
• Versatile Measurement Functions: Mesures AC/DC Voltage, DC Current, Resistance, Diode, Continuity, Frequency, Duty Cycle, and hFE.
• Detecció de cables en fase: Identifica cables elèctrics en fase.
• Vol. Sense contactetage (NCV) Function: Detecta AC voltage sense contacte directe, millorant la seguretat.
• Mesura de la temperatura: Includes a K-Type thermocouple for temperature readings.
• Audible Assurance: Built-in buzzer for continuity tests (sounds if resistance is less than 50Ω).
• Backlight LCD Screen: Millora la visibilitat en condicions de poca llum.
• Llanterna LED: Assists in illuminating dark work areas.
• Suport: Flexible and stable stand for convenient hands-free operation, adjustable up to 90 degrees.
• Protecció de sobrecàrrega: Equipped with 2 stable fuses to provide safety and overload protection on all ranges.

Image: Close-up of the Jesverty HK33D multimeter display, highlighting its 2000 counts and various measurement modes like DC Voltage, Live, NCV, Frequency, AC Voltage, Duty Cycle, Diode, Resistance, hFE, Continuity, Temperature, and Microampere.

Imatge: Una imatge interna view of the Jesverty HK33D Digital Multimeter, illustrating its high-performance chipset for accurate measurements and two stable fuses for overload protection across all ranges.

Image: Four panels demonstrating key features: Audible Assurance (buzzer for continuity), NCV Function (non-contact live wire detection), Temperature Measurement (using K-Type thermocouple), and the flexible Support Stand.

Image: The Jesverty HK33D Digital Multimeter's LED flashlight illuminating a dark electrical panel, demonstrating how the backlight and flashlight work together for safer measurements in low-light conditions.

4. Configuració

4.1 Desembalatge

Carefully unpack the contents of the box. The package should include:

• Jesverty HK33D Digital Multimeter
• Set of Test Leads (Red and Black)
• K-Type Thermocouple (for temperature measurement)
• Manual d'usuari

Image: The complete package contents of the Jesverty HK33D Digital Multimeter, including the multimeter, test leads, K-type thermocouple, and user manual.

4.2 Instal·lació de la bateria

The Jesverty HK33D Multimeter requires batteries for operation (batteries are not included in the package). To install or replace batteries:

1. Assegureu-vos que el multímetre estigui APAGAT.
2. Localitzeu la tapa del compartiment de la bateria a la part posterior de la unitat.
3. Utilitzeu un tornavís per obrir el compartiment de la bateria.
4. Introduïu les piles necessàries, respectant la polaritat correcta (+ i -).
5. Substituïu la tapa del compartiment de la bateria i fixeu-la amb el cargol.

4.3 Connexió del cable de prova

Connect the test leads to the appropriate input jacks on the multimeter:

• Connecteu el cable de prova negre al COM Jack (comú).
• Per a la majoria de mesures (Voltage, Resistance, Diode, Continuity, Frequency, Temperature, small Current), connect the cable de prova vermell al VΩmA jack.
• For large current measurements (up to 10A), connect the cable de prova vermell al 10A MÀX jack.

5. Instruccions de funcionament

Before operating, ensure the multimeter is set up correctly as described in Section 4.

5.1 Selecció de la funció

Rotate the central dial to select the desired measurement function. The display will show the corresponding symbol for the selected mode.

5.2 Mesurar AC/DC Voltage

1. Connect the black test lead to COM and the red test lead to VΩmA.
2. Gireu el dial giratori cap a V~ (Volum AC)tage) o V- (DC Voltage) posició.
3. Connecteu les sondes de prova en paral·lel al circuit o component que voleu mesurar.
4. Llegeix el voltage valor a la pantalla.

Image: The Jesverty HK33D Multimeter performing DC Voltage measurement on a battery and AC Voltage measurement on a power supply, illustrating proper test lead connection and display readings.

5.3 Mesura de corrent continu

1. Important: Turn off power to the circuit before connecting the multimeter.
2. Connect the black test lead to COM. Connect the red test lead to VΩmA for mA range or 10A MAX for A range.
3. Gireu el dial giratori cap a A- (DC Current) or mA- (DC Milliamperes) position.
4. Break the circuit and connect the multimeter in series with the load.
5. Turn on the circuit power and read the current value on the display.
6. Turn off power before disconnecting the multimeter and restoring the circuit.

5.4 Mesura de la resistència

1. Ensure the circuit is de-energized and any capacitors are discharged.
2. Connect the black test lead to COM and the red test lead to VΩmA.
3. Gireu el dial giratori cap a Ω Posició (de resistència).
4. Connect the test probes across the component to measure its resistance.
5. Llegiu el valor de resistència a la pantalla.

5.5 Prova de continuïtat

1. Assegureu-vos que el circuit estigui desenergitzat.
2. Connect the black test lead to COM and the red test lead to VΩmA.
3. Gireu el dial giratori cap a Continuïtat (speaker icon) position.
4. Toqueu les sondes de prova als dos punts on voleu comprovar la continuïtat.
5. If there is continuity (resistance less than approximately 50Ω), the buzzer will sound.

5.6 Prova de díodes

1. Assegureu-vos que el circuit estigui desenergitzat.
2. Connect the black test lead to COM and the red test lead to VΩmA.
3. Gireu el dial giratori cap a Díode (diode symbol) position.
4. Connecteu la sonda vermella a l'ànode i la sonda negra al càtode del díode.
5. La pantalla mostrarà el volum d'avançtage drop. Reverse the probes; the display should show 'OL' (Open Line) for a good diode.

5.7 Vol. sense contactetage (NCV) Detecció

1. Gireu el dial giratori cap a NCV posició.
2. Move the top end of the multimeter near the conductor or outlet you want to test.
3. The meter will beep and the LED will flash with increasing frequency as it detects AC voltage.

5.8 Prova de cable en fase

1. Gireu el dial giratori cap a Viu posició.
2. Insert the red test probe into the live terminal of an outlet or touch it to a live wire.
3. The display will indicate 'LIVE' and the meter will beep if a live wire is detected.

5.9 Mesura de la temperatura

1. Connect the K-Type thermocouple to the VΩmA and COM jacks, observing polarity.
2. Gireu el dial giratori cap a ° C / ° F posició.
3. Place the thermocouple tip on or in the object whose temperature you wish to measure.
4. Read the temperature value on the display. Use the 'SEL' button to switch between Celsius and Fahrenheit.

5.10 Frequency (Hz) and Duty Cycle (%)

1. Connect the black test lead to COM and the red test lead to VΩmA.
2. Gireu el dial giratori cap a Hz/% posició.
3. Connecteu les sondes de prova a la font de senyal.
4. Read the frequency or duty cycle on the display. Use the 'SEL' button to toggle between Hz and %.

5.11 hFE (Transistor Test)

This function allows for testing the DC current gain (hFE) of NPN and PNP transistors. Refer to the specific markings on the multimeter for transistor lead insertion points (E, B, C for Emitter, Base, Collector).

1. Gireu el dial giratori cap a hFE posició.
2. Insert the transistor leads into the corresponding sockets on the multimeter.
3. Read the hFE value on the display.

5.12 Additional Functions (Buttons)

• Botó SEL: Used to switch between different functions within a single dial position (e.g., AC/DC, Hz/%, °C/°F).
• H / ★ Button: Short press for Data Hold (H), which freezes the current reading on the display. Long press for Backlight (★), which illuminates the LCD.
• MIN MAX REL Button: Used to record minimum/maximum values or for relative measurement.

6. Manteniment

6.1 Neteja

Netegeu el comptador amb anuncisamp drap i detergent suau. No utilitzeu abrasius ni dissolvents. Assegureu-vos que el mesurador estigui sec abans d'utilitzar-lo.

6.2 Substitució de la bateria

When the low battery indicator appears on the display, replace the batteries as described in Section 4.2 to maintain measurement accuracy.

6.3 Canvi de fusibles

Si la funció de mesura de corrent deixa de funcionar, és possible que calgui substituir el fusible. Consulteu les especificacions per conèixer el tipus i la classificació correctes del fusible. La substitució del fusible només l'ha de realitzar personal qualificat.

6.4 Emmagatzematge

If the meter is not used for an extended period, remove the batteries to prevent leakage and store it in a cool, dry place away from direct sunlight.

7. Solució De Problemes

If you encounter issues with your Jesverty HK33D Multimeter, refer to the following common troubleshooting steps:

• Sense pantalla o pantalla tènue: Comproveu la instal·lació de la bateria i substituïu-les si cal.
• Lectures incorrectes: Ensure the function dial is set to the correct measurement type and range. Check test lead connections. Verify the circuit is de-energized for resistance/continuity tests.
• La mesura actual no funciona: Check if the fuse is blown. Replace if needed (refer to Section 6.3).
• Continuity Buzzer Not Sounding: Ensure the resistance between the probes is below 50Ω. Check test leads for damage.
• NCV/Live Wire Detection Not Working: Ensure the function is selected correctly. The presence of strong electromagnetic fields can interfere with these functions.

If the problem persists after attempting these steps, contact customer support.

8. Especificacions

9. Garantia i Suport

For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Jesverty weblloc web. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.