1. Pengenalan
The Mastech MS8301D is a compact, auto-ranging digital multimeter designed for accurate measurement of various electrical parameters. This manual provides essential information for safe and effective use, including setup, operation, maintenance, and troubleshooting.
2. Maklumat Keselamatan
Always observe safety precautions when using any electrical testing equipment. Failure to do so may result in electric shock, injury, or damage to the meter or equipment under test.
- Read and understand all instructions in this manual before use.
- Jangan melebihi nilai input maksimum yang ditetapkan untuk setiap fungsi.
- Pastikan petunjuk ujian berada dalam keadaan baik, tanpa retakan atau penebat yang rosak.
- Jangan gunakan meter jika ia kelihatan rosak atau jika bekasnya terbuka.
- Berhati-hati apabila bekerja dengan voltagadalah melebihi 30V AC RMS, puncak 42V atau 60V DC. Ini voltagia menimbulkan bahaya kejutan.
- Gantikan bateri dengan segera apabila penunjuk bateri lemah muncul untuk memastikan bacaan yang tepat.
- Always disconnect test leads from the circuit before changing functions.
- Jangan kendalikan meter dalam gas meletup, wap atau persekitaran berdebu.
- The meter complies with CE, UL, and RoHS standards.
3. Ciri-ciri Utama
The Mastech MS8301D Digital Multimeter offers a range of features for versatile electrical testing:
- Paparan 6000 Kiraan: Menyediakan pengukuran resolusi tinggi.
- Julat Auto: Secara automatik memilih julat ukuran yang sesuai.
- Auto Matikan: Conserves battery life when not in use.
- Paparan Dwi: Allows for simultaneous display of certain parameters.
- Buzzer Kesinambungan: Petunjuk boleh dengar untuk kesinambungan litar.
- Pegangan Data: Membekukan bacaan yang dipaparkan untuk memudahkan rakaman.
- Fungsi MAKSIMUM/MINIT: Records maximum and minimum measured values.
- Paparan Lampu Belakang: Meningkatkan keterlihatan dalam keadaan cahaya malap.
- Paparan Bateri Rendah: Menunjukkan bila penggantian bateri diperlukan.
- Vol. Bukan KenalantagPengesan e (NCV): Mengesan AC voltage tanpa sentuhan langsung.

4. Produk Lebihview dan Komponen
The Mastech MS8301D Digital Multimeter is designed for ease of use and durability. It features a clear LCD display, a rotary function switch, and input jacks for test leads.

4.1 Main Applications
The MS8301D is suitable for a variety of applications:
- Domestik: For household electrical checks and repairs.
- Perindustrian: For maintenance and troubleshooting in industrial settings.
- Elektronik: For testing and development of electronic circuits.
4.2 Kandungan Pakej
Setelah membuka bungkusan, pastikan semua barang ada:
- Mastech MS8301D Digital Multimeter (approx. 150x74x48mm, 220g/0.48lb)
- Pemimpin Ujian
- 2 x Bateri AAA 1.5V
- Sijil Penentukuran
- Panduan Mula Pantas

5. Persediaan
5.1 Pemasangan Bateri
- Pastikan multimeter dimatikan dan petunjuk ujian diputuskan.
- Cari penutup petak bateri di belakang meter.
- Tanggalkan skru penahan dan tanggalkan penutup.
- Insert two 1.5V AAA batteries, observing correct polarity (+ and -).
- Gantikan penutup petak bateri dan kencangkannya dengan skru.
5.2 Menghubungkan Petunjuk Ujian
- Masukkan petunjuk ujian hitam ke dalam bicu input "COM" (Umum).
- Untuk kebanyakan ukuran (Voltage, Resistance, Continuity, Diode, Frequency, Duty Cycle), insert the red test lead into the "VΩHz" input jack.
- Ensure test leads are fully inserted before taking measurements.
6. Arahan Operasi
The MS8301D uses a rotary switch to select the primary measurement function and function buttons for secondary selections or features.
6.1 Operasi Am
- Hidupkan/Mati Kuasa: Rotate the function switch from "OFF" to any desired measurement function to turn on the meter. Rotate back to "OFF" to power off. The meter also features Auto Power Off.
- Lampu latar: Press the backlight button (often labeled with a light bulb icon) to illuminate the display.
- Pegangan Data: Tekan butang "HOLD" untuk membekukan bacaan semasa pada paparan. Tekan sekali lagi untuk melepaskan.
- MAX / MIN: Press the "MAX/MIN" button to enter MAX/MIN recording mode. The meter will display the maximum or minimum value detected. Press again to cycle through MAX, MIN, and current readings.
6.2 Fungsi Pengukuran
Always ensure the correct function is selected and test leads are connected to the appropriate input jacks before making measurements.
- DC Voltage Measurement (V DC):
- Rotate the switch to the "V" position. The meter will automatically select DC or AC. If needed, press the "FUNC" button to select DC.
- Sambungkan petunjuk ujian merah ke sisi positif (+) litar dan petunjuk ujian hitam ke sisi negatif (-).
- Baca voltagnilai e pada paparan.
- Vol. ACtage Measurement (V AC):
- Rotate the switch to the "V" position. The meter will automatically select DC or AC. If needed, press the "FUNC" button to select AC.
- Sambungkan petunjuk ujian merentasi vol ACtage sumber.
- Baca voltagnilai e pada paparan.
- Pengukuran Rintangan (Ω):
- Rotate the switch to the "Ω" position.
- Pastikan litar dinyahtenagakan sebelum mengukur rintangan.
- Sambungkan petunjuk ujian merentasi komponen yang akan diukur.
- Baca nilai rintangan pada paparan.
- Continuity Test (with audible buzzer):
- Rotate the switch to the "Ω" position and press "FUNC" until the continuity symbol appears.
- Pastikan litar dinyahtenagakan.
- Connect the test leads across the circuit or component. An audible beep indicates continuity (low resistance).
- Diode Test (diode function):
- Rotate the switch to the "Ω" position and press "FUNC" until the diode symbol appears.
- Sambungkan plumbum ujian merah ke anod dan plumbum ujian hitam ke katod diod.
- Paparan akan menunjukkan vol ke hadapantage jatuh. Songsangkan wayar; bacaan litar terbuka (OL) menunjukkan diod yang baik.
- Frequency (Hz) and Duty Cycle (%) Measurement:
- Rotate the switch to the "Hz%" position.
- Sambungkan wayar ujian merentasi sumber isyarat.
- The display will show the frequency. Press "FUNC" to switch to duty cycle measurement.
- Vol. Bukan Kenalantage (NCV) Pengesanan:
- Rotate the switch to the "NCV" position.
- Move the top front part of the meter near the conductor.
- The meter will indicate the presence of AC voltage with an audible beep and/or visual indicator.
7. Spesifikasi
Detailed electrical and general specifications for the Mastech MS8301D Digital Multimeter:
7.1 Spesifikasi Elektrik
| Fungsi | Julat | Resolusi | Ketepatan |
|---|---|---|---|
| DC Voltage | 6V/60V/600V | 0.01V/0.1V/1V | ±(0.5%+3) |
| Vol. ACtage | 6V/60V/600V | 0.01V/0.1V/1V | ±(0.8%+5) |
| Rintangan | 2kΩ/20kΩ/200kΩ/2MΩ/10MΩ | 0.001kΩ/0.01kΩ/0.001MΩ/0.01MΩ | ±(0.8%+3) for 2kΩ-2MΩ, ±(1.0%+5) for 10MΩ |
| Kekerapan | 60Hz/600Hz/3kHz | 0.1Hz / 1Hz / 10Hz | ±(1.0%+5) |
| Kitaran Tugas | 10% ~ 90% | 1% | ±(2.0%) |
7.2 Spesifikasi Umum
- Pengeluar: mastech
- Nombor Model: YQ-MS8301D
- Dimensi Produk: 20 x 15 x 25 cm
- Berat Barang: 1 Kilogram
- Sumber Kuasa: Battery Powered (2 x 1.5V AAA batteries)
- warna: Blue (Note: Product appearance may vary, typically green/black as shown in images)
- Complied Specifications: CE, UL, RoHS (Restriction of Hazardous Substances)
- Penilaian Suhu Atas: 50°C
- Ketersediaan Alat Ganti EU: 1 tahun
8. Penyelenggaraan
8.1 Penggantian Bateri
When the low battery indicator appears on the display, replace the batteries promptly to ensure accurate measurements.
- Matikan multimeter dan putuskan sambungan semua kabel ujian.
- Buka penutup petak bateri di belakang meter.
- Remove the old 1.5V AAA batteries.
- Insert new 1.5V AAA batteries, observing correct polarity.
- Gantikan penutup petak bateri dan selamatkannya.
8.2 Pembersihan dan Penyimpanan
- Clean the meter's case with a damp kain dan bahan pencuci ringan. Jangan gunakan pelelas atau pelarut.
- If the meter is not used for an extended period, remove the batteries to prevent leakage.
- Simpan meter di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
9. Penyelesaian masalah
If you encounter issues with your MS8301D multimeter, refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada paparan atau paparan samar | Dead or low batteries; incorrect battery polarity. | Replace batteries; check battery orientation. |
| "OL" (Lebihan) dipaparkan | Input value exceeds selected range; open circuit. | Select a higher range (if not auto-ranging); check circuit connection. |
| Bacaan tidak tepat | Low battery; damaged test leads; incorrect function selected. | Replace batteries; inspect and replace test leads; verify function switch position. |
| Continuity buzzer not working | Open circuit; function not selected. | Check circuit for breaks; ensure continuity function is active. |
10. Waranti dan Sokongan
Mastech products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Mastech webtapak. Simpan resit pembelian anda sebagai bukti pembelian.
Ketersediaan Alat Ganti EU: 1 tahun dari tarikh pembelian.