Cyeelves Digital Multimeter VC830L User Manual

1. Pengenalan

The Cyeelves Digital Multimeter VC830L is a compact, portable, and versatile instrument designed for accurate electrical measurements. It is suitable for both household and industrial applications, allowing users to measure AC/DC Voltage, AC/DC Current, Resistance, and perform Continuity and Diode tests. Its large backlit LCD display ensures clear readings even in low-light conditions, and the durable construction provides reliable performance.

2. Maklumat Keselamatan

Always observe basic safety precautions when using this multimeter to prevent personal injury or damage to the meter. Read and understand all instructions before use.

• Jangan melebihi nilai input maksimum untuk sebarang julat.
• Ensure the test leads are properly connected and the function switch is set to the correct range before making any measurement.
• Berhati-hati apabila bekerja dengan voltagadalah melebihi 36V DC atau 25V AC RMS, kerana ini boleh menimbulkan bahaya kejutan.
• Sentiasa putuskan sambungan petunjuk ujian daripada litar sebelum menukar fungsi atau julat.
• Jangan gunakan meter jika ia kelihatan rosak atau jika penebat pada wayar ujian terjejas.
• Gantikan bateri apabila penunjuk bateri rendah muncul untuk memastikan bacaan yang tepat.

3. Produk Lebihview

Familiarize yourself with the components of your Cyeelves Digital Multimeter VC830L.

Figure 3.1: Complete Multimeter Kit

This image displays the Cyeelves Digital Multimeter VC830L, its red and black test leads, and the included 9V battery, providing a full view of the product and its accessories.

Gambar 3.2: Susun atur Panel Depan

This image highlights key features of the multimeter's front panel, including the LCD display, the LED button for backlight, the central rotary switch for function selection, and the 10A, COM, and VΩmA input jacks.

Figure 3.3: Physical Features and Dimensions

This image illustrates the compact dimensions of the multimeter, its non-slip grip for secure handling, and the integrated folding support stand for convenient hands-free operation.

3.1. Komponen

• Paparan LCD: Menunjukkan bacaan ukuran dan penunjuk.
• Butang LED: Mengaktifkan lampu latar paparan.
• Suis Putar: Memilih fungsi dan julat ukuran yang dikehendaki.
• Bicu Input:
• Bicu 10A: For measuring currents up to 10 Amperes.
• COM Jack: Input biasa (negatif) untuk semua ukuran.
• Bicu VΩmA: For measuring Voltage, Resistance, and milliampsebelum ini.
• Petunjuk Ujian: Red (positive) and Black (negative) leads for connecting to circuits.
• Folding Support: Integrated stand on the back for upright positioning.

4. Persediaan

4.1. Pemasangan Bateri

The Cyeelves Digital Multimeter VC830L requires a 9V battery (included). To install or replace the battery:

1. Pastikan multimeter dimatikan.
2. Cari penutup petak bateri di belakang meter.
3. Gunakan pemutar skru untuk mengeluarkan skru yang menahan penutup.
4. Carefully remove the cover and insert the 9V battery, observing the correct polarity (+/-).
5. Gantikan penutup bateri dan kencangkannya dengan skru.

4.2. Menghubungkan Petunjuk Ujian

Sambungan wayar ujian yang betul adalah penting untuk pengukuran yang tepat dan selamat.

1. Masukkan petunjuk ujian hitam ke dalam COM jek (biasa).
2. Untuk kebanyakan ukuran (Voltage, Resistance, Diode, Continuity, small Current), insert the red test lead into the VΩmA jek.
3. For measuring high currents (up to 10A), insert the red test lead into the 10A jek. Always ensure the correct jack is used to prevent damage to the meter or circuit.

5. Arahan Operasi

This section details how to use the Cyeelves Digital Multimeter VC830L for various electrical measurements.

5.1. Mengukur DC Voltage (V–)

Untuk mengukur voltan DCtage, such as from batteries or DC power supplies:

1. Tetapkan suis putar kepada Vol DC yang dikehendakitage (V–) range (e.g., 20V, 200V, 600V). Choose a range higher than the expected voltage.
2. Sambungkan plumbum ujian hitam ke COM bicu dan ujian merah membawa kepada VΩmA jek.
3. Connect the test leads in parallel across the component or circuit to be measured. The red lead connects to the positive side, and the black lead to the negative side.
4. Baca voltage value on the LCD display. If a negative sign appears, the polarity of the test leads is reversed.

Rajah 5.1.1: DC Voltage Pengukuran

This image shows the multimeter actively measuring DC voltage from a battery, with the display showing a reading of 0.98V. The test leads are correctly connected to the battery terminals.

5.2. Mengukur Vol ACtage (V∼)

Untuk mengukur vol ACtage, such as from wall outlets:

1. Tetapkan suis putar kepada Vol AC yang dikehendakitage (V∼) range (e.g., 200V, 600V). Choose a range higher than the expected voltage.
2. Sambungkan plumbum ujian hitam ke COM bicu dan ujian merah membawa kepada VΩmA jek.
3. Sambungkan petunjuk ujian secara selari merentasi sumber AC.
4. Baca voltagnilai e pada paparan LCD.

Gambar 5.2.1: AC Voltage Pengukuran

This image demonstrates the multimeter measuring AC voltage from a standard wall outlet, displaying a reading of 128.1V. The test leads are inserted into the outlet's receptacles.

5.3. Measuring DC Current (A–)

To measure DC current, the multimeter must be connected in series with the circuit. Caution: Never connect the multimeter in parallel when measuring current, as this can damage the meter and the circuit.

1. Matikan kuasa litar.
2. Set the rotary switch to the appropriate DC Current (A–) range (e.g., 200mA, 10A). If measuring current above 200mA, ensure the red test lead is in the 10A jek.
3. Break the circuit and connect the multimeter in series. The current will flow through the meter.
4. Guna kuasa pada litar dan baca nilai semasa pada paparan LCD.

5.4. Mengukur Rintangan (Ω)

To measure resistance of a component:

1. Ensure the circuit is de-energized and the component is isolated from power.
2. Set the rotary switch to the desired Resistance (Ω) range.
3. Sambungkan plumbum ujian hitam ke COM bicu dan ujian merah membawa kepada VΩmA jek.
4. Sambungkan petunjuk ujian merentasi komponen yang rintangannya ingin anda ukur.
5. Baca nilai rintangan pada paparan LCD.

5.5. Ujian Kesinambungan

The continuity test checks for an unbroken path in a circuit and typically provides an audible buzzer sound if continuity exists.

1. Pastikan litar dinyahtenagakan.
2. Set the rotary switch to the Continuity (☊) position.
3. Sambungkan plumbum ujian hitam ke COM bicu dan ujian merah membawa kepada VΩmA jek.
4. Touch the test leads across the points you want to check for continuity.
5. If there is continuity (low resistance), the meter will emit an audible beep.

5.6. Ujian Diod

Ujian diod mengukur vol ke hadapantage drop of a diode.

1. Ensure the diode is isolated from the circuit.
2. Set the rotary switch to the Diode (→|–) position.
3. Sambungkan plumbum ujian hitam ke COM bicu dan ujian merah membawa kepada VΩmA jek.
4. Sambungkan wayar ujian merah ke anod diod dan wayar ujian hitam ke katod.
5. Baca vol ke hadapantage drop on the LCD display. Reverse the leads to check for reverse bias (should show OL or infinite resistance).

5.7. hFE Measurement (Transistor Test)

The hFE function allows for testing the DC current gain of NPN and PNP transistors.

1. Tetapkan suis putar ke hFE kedudukan.
2. Identify the type (NPN or PNP) and pin configuration (Emitter, Base, Collector) of the transistor.
3. Insert the transistor leads into the corresponding sockets on the multimeter's hFE test socket.
4. Read the hFE value on the LCD display.

5.8. Fungsi Pegangan Data

Tekan ke TAHAN button (often integrated with the LED button or a separate button) to freeze the current reading on the display. Press it again to release the hold and resume live measurements.

5.9. Operasi Lampu latar

Tekan ke LED button to turn on the display backlight for improved visibility in dim environments. Press it again to turn off the backlight.

Figure 5.9.1: Backlight in Use

This image demonstrates the multimeter's LCD display with its backlight activated, making the readings clearly visible even in a poorly lit environment, enhancing usability.

6. Penyelenggaraan

Penyelenggaraan yang betul memastikan jangka hayat dan ketepatan multimeter anda.

• Pembersihan: Lap meter dengan iklanamp kain dan bahan pencuci ringan. Jangan gunakan pelelas atau pelarut.
• Penggantian Bateri: Replace the 9V battery as described in Section 4.1 when the low battery indicator appears on the display.
• Storan: If the meter is not used for a long period, remove the battery to prevent leakage. Store in a cool, dry place away from direct sunlight.
• Sekering: The multimeter has built-in fuses for overload protection. If the current measurement function stops working, the fuse may need replacement. This should only be performed by qualified personnel.

7. Penyelesaian masalah

Jika anda menghadapi masalah dengan multimeter anda, rujuk masalah dan penyelesaian biasa berikut:

8. Spesifikasi

9. Waranti dan Sokongan

Cyeelves is committed to providing quality products and customer satisfaction. If you have any questions regarding the operation, maintenance, or performance of your Digital Multimeter VC830L, please contact Cyeelves customer support. We aim to respond to inquiries within 24 hours and offer replacements within 30 days for product-related issues.

For support, please refer to the contact information provided with your product packaging or visit the official Cyeelves brand store online.