1. Pengenalan
Thank you for choosing the AUTOOL DM Mini Digital Pocket Multimeter. This compact and reliable auto-ranging multimeter is designed for precise electrical measurements in various applications. Its portable size and comprehensive features make it an essential tool for hobbyists, technicians, and professionals.
Rajah 1.1: The compact size of the AUTOOL DM Mini allows it to fit easily into a pocket, making it highly portable for use anywhere.
2. Produk Lebihview
The AUTOOL DM Mini features a clamshell design for protection and portability. It integrates test leads within its compact body, ensuring convenience and readiness for use.
Rajah 2.1: Depan view of the AUTOOL DM Mini Digital Multimeter, showing the display, rotary switch, and integrated test leads.
2.1 Komponen Utama
Rajah 2.2: Detailed diagram illustrating the main components of the multimeter, including the LCD display, data hold button, rotary knob, manual switch, test leads, and pen compartment.
- Paparan LCD: Menunjukkan bacaan ukuran dan penunjuk.
- Suis Tombol: Digunakan untuk memilih fungsi dan julat pengukuran.
- Data Hold Key (H): Membekukan bacaan semasa pada paparan.
- Manual Switch Button (RANGE): Allows manual range selection in auto-ranging modes.
- Petunjuk Ujian: Integrated red and black leads for connecting to circuits.
- Pen Compartment: Storage area for the test leads.
2.2 Ciri-ciri Utama
- Keupayaan julat automatik.
- 550V protection in resistance and capacitance ranges.
- Paparan LCD besar dengan kiraan maksimum 4000.
- Sampling rate: 3 times per second.
- Fungsi penyimpanan data.
- Polarity identification and low voltage petunjuk.
- Low current measurement.
- Automatic power-off to conserve battery life.
Rajah 2.3: Visual representation of the multimeter's core functions, including DC/AC Voltage, Resistance, Continuity, Capacitance, Diode, Frequency, and Data Hold.
3. Persediaan
3.1 Pemasangan Bateri
The multimeter requires 2 AAA batteries (not supplied) for operation. Follow these steps to install them:
- Cari petak bateri di belakang multimeter.
- Loosen the screw securing the battery cover using a Phillips head screwdriver.
- Luncurkan penutup bateri.
- Insert 2 AAA alkaline batteries, ensuring correct polarity (+ and -).
- Pasang semula penutup bateri dan ketatkan skru.
Rajah 3.1: Illustration of the battery compartment on the back of the multimeter, showing where to insert the two AAA batteries.
Warning: Always ensure the multimeter is turned OFF and disconnected from any circuits before opening the battery compartment.
4. Arahan Operasi
4.1 Hidupkan/Mati Kuasa
To turn on the multimeter, rotate the knob switch from the 'OFF' position to any desired measurement function. To turn off the multimeter, rotate the knob switch back to the 'OFF' position. The device features an automatic power-off function to save battery life if left idle for a period.
4.2 Pengukuran Asas
The DM Mini is an auto-ranging multimeter, simplifying operation by automatically selecting the appropriate measurement range.
4.2.1 Jldtage Pengukuran (AC/DC)
Untuk mengukur voltage:
- Rotate the knob switch to the 'V=' (DC Voltage) or 'V~' (AC Voltage) kedudukan.
- Connect the red test lead to the positive (+) side of the circuit and the black test lead to the negative (-) side (for DC) or across the points for AC.
- Baca voltagnilai e pada paparan LCD.
Rajah 4.1: Examples of measuring DC voltage from a 9V battery and AC voltage from a power outlet using the multimeter.
4.2.2 Pengukuran Rintangan (Ω)
Untuk mengukur rintangan:
- Rotate the knob switch to the 'Ω' (Resistance) position.
- Pastikan litar dinyahdayakan sebelum menyambungkan wayar ujian merentasi komponen yang hendak diukur.
- Baca nilai rintangan pada paparan LCD.
4.2.3 Ujian Kesinambungan (♫)
Untuk melakukan ujian kesinambungan:
- Rotate the knob switch to the '♫' (Continuity) position.
- Sambungkan petunjuk ujian merentasi litar atau komponen.
- Jika terdapat kesinambungan (rintangan rendah), multimeter akan mengeluarkan bunyi bip yang boleh didengar.
4.2.4 Diode Test (†)
Untuk menguji diod:
- Rotate the knob switch to the '†' (Diode) position.
- Sambungkan plumbum ujian merah ke anod dan plumbum ujian hitam ke katod diod.
- Perhatikan vol ke hadapantage drop on the display. Reverse the leads to check for open circuit (OL) in reverse bias.
4.2.5 Pengukuran Kapasitans (F)
Untuk mengukur kapasiti:
- Rotate the knob switch to the 'F' (Capacitance) position.
- Pastikan kapasitor dinyahcas sepenuhnya sebelum menyambungkan petunjuk ujian.
- Sambungkan petunjuk ujian merentasi kapasitor.
- Baca nilai kemuatan pada paparan LCD.
4.2.6 Frequency and Duty Cycle Measurement (Hz/DUTY)
To measure frequency or duty cycle:
- Rotate the knob switch to the 'Hz/DUTY' position.
- Sambungkan wayar ujian ke sumber isyarat.
- The display will show the frequency (Hz). Press the 'RANGE' button to toggle to duty cycle measurement.
4.3 Fungsi Pegangan Data
Press the 'H' (Data Hold) button to freeze the current reading on the display. Press it again to release the hold and resume live readings.
Rajah 4.2: The multimeter in use, demonstrating its ease of operation for various electrical tests, such as checking a car battery.
5. Penyelenggaraan
5.1 Pembersihan
Untuk membersihkan multimeter, lap bekas dengan iklanamp cloth and a mild detergent. Do not use abrasives or solvents. Ensure the device is dry before use.
5.2 Penggantian Bateri
When the low battery indicator appears on the display, replace the batteries as described in Section 3.1. Always use fresh AAA alkaline batteries.
5.3 Penyimpanan
If the multimeter is not used for an extended period, remove the batteries to prevent leakage and damage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
6. Penyelesaian masalah
This section addresses common issues you might encounter with your AUTOOL DM Mini Multimeter.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Paparan kosong atau malap. | Bateri lemah atau mati. | Replace batteries (refer to Section 3.1). |
| Tiada bacaan atau "OL" dipaparkan. | Open circuit; measurement range exceeded; incorrect function selected. | Check test lead connections; ensure value is within range; select correct function. |
| Bacaan yang tidak tepat. | Poor test lead contact; external interference; damaged leads. | Ensure firm contact; move away from strong electromagnetic fields; inspect and replace damaged leads. |
| Multimeter turns off automatically. | Automatic power-off feature activated. | This is normal behavior to save battery. Turn the knob to 'OFF' and then back to the desired function to restart. |
7. Spesifikasi
Detailed technical specifications for the AUTOOL DM Mini Digital Pocket Multimeter.
Rajah 7.1: Dimensions of the portable digital multimeter, including its length (12.5 cm) and height (19.5 cm), along with images of the instruction manual and outer box.
| Parameter | Julat / Nilai | Ketepatan |
|---|---|---|
| DC Voltage | 400 mV / 4 V / 40 V / 400 V / 600 V | ± (0.5% + 4) for 400mV-40V, ± (0.8% + 4) for 400V-600V |
| Vol. ACtage | 400 mV / 4 V / 40 V / 400 V / 600 V | ± (1.5% + 4) for 400mV, ± (1.2% + 4) for 4V-400V, ± (1.5% + 4) for 600V |
| Rintangan | 400 Ω / 4 KΩ / 40 KΩ / 400 KΩ / 4 MΩ / 40 MΩ | ± (0.8% + 4) for 400Ω-4MΩ, ± (2.0% + 4) for 40MΩ |
| Kapasitansi | 4 nF / 40 nF / 400 nF / 4 µF / 40 µF / 400 µF / 1000 µF / 4000 µF | ± (5.0% + 4) for 4nF, ± (2.5% + 4) for 40nF, ± (3.5% + 4) for others |
| Kekerapan | 99.5 Hz hingga 9.999 MHz | ± (0.08% + 2) |
| Kitaran Tugas | 0.1% hingga 99.9% | ± (0.08% + 2) |
| Paparan | 4000 Kiraan LCD | |
| SampKadar ling | 3 kali / saat | |
| Persekitaran Operasi | 0~40℃, Relative Humidity <80% | |
| Bekalan Kuasa | 3V (2 x AAA Batteries) | |
| Dimensi (L x W x H) | 12.5 x 8 x 1.95 cm | |
| Berat badan | Approx. 131.54 grams (without batteries) |
8. Waranti dan Sokongan
AUTOOL products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or visit the official AUTOOL webtapak. Simpan resit pembelian anda sebagai bukti pembelian untuk sebarang tuntutan waranti.
For further assistance, please contact AUTOOL customer service through the contact information provided on their official webtapak atau melalui peruncit anda.
