1. Introduktion
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.
Figur 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. Produktet er slutview
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.
Figur 2.1: Front view of the AUTOOL DM Mini Digital Multimeter, showing the display, rotary switch, and integrated test leads.
2.1 nøglekomponenter
Figur 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.
- LCD-skærm: Viser måleaflæsninger og indikatorer.
- Knob Switch: Bruges til at vælge målefunktioner og -områder.
- Data Hold Key (H): Fryser den aktuelle aflæsning på displayet.
- Manual Switch Button (RANGE): Allows manual range selection in auto-ranging modes.
- Prøveemner: Integrated red and black leads for connecting to circuits.
- Penneholder: Storage area for the test leads.
2.2 Hovedfunktioner
- Automatisk rækkeviddefunktion.
- 550V protection in resistance and capacitance ranges.
- Large LCD display with a maximum count of 4000.
- Sampling rate: 3 times per second.
- Datahold funktion.
- Polarity identification and low voltage indikation.
- Low current measurement.
- Automatic power-off to conserve battery life.
Figur 2.3: Visual representation of the multimeter's core functions, including DC/AC Voltage, Resistance, Continuity, Capacitance, Diode, Frequency, and Data Hold.
3. Opsætning
3.1 Batteriinstallation
The multimeter requires 2 AAA batteries (not supplied) for operation. Follow these steps to install them:
- Find batterirummet på bagsiden af multimeteret.
- Loosen the screw securing the battery cover using a Phillips head screwdriver.
- Skub batteridækslet af.
- Insert 2 AAA alkaline batteries, ensuring correct polarity (+ and -).
- Sæt batteridækslet på igen, og stram skruen.
Figur 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. Betjeningsvejledning
4.1 Tænd/sluk
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 Grundlæggende målinger
The DM Mini is an auto-ranging multimeter, simplifying operation by automatically selecting the appropriate measurement range.
4.2.1 bindtage-måling (AC/DC)
At måle voltage:
- Rotate the knob switch to the 'V=' (DC Voltage) or 'V~' (AC Voltage) stilling.
- 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.
- Læs bindtage -værdi på LCD -displayet.
Figur 4.1: Examples of measuring DC voltage from a 9V battery and AC voltage from a power outlet using the multimeter.
4.2.2 Modstandsmåling (Ω)
Sådan måles modstand:
- Rotate the knob switch to the 'Ω' (Resistance) position.
- Ensure the circuit is de-energized before connecting the test leads across the component to be measured.
- Aflæs modstandsværdien på LCD-displayet.
4.2.3 Kontinuitetstest (♫)
Sådan udføres en kontinuitetstest:
- Rotate the knob switch to the '♫' (Continuity) position.
- Tilslut testledningerne på tværs af kredsløbet eller komponenten.
- Hvis der er kontinuitet (lav modstand), vil multimeteret udsende et hørbart bip.
4.2.4 Diode Test (†)
For at teste en diode:
- Rotate the knob switch to the '†' (Diode) position.
- Tilslut den røde testledning til anoden og den sorte testledning til katoden på dioden.
- Bemærk den fremadgående voltage drop on the display. Reverse the leads to check for open circuit (OL) in reverse bias.
4.2.5 Kapacitansmåling (F)
Sådan måles kapacitans:
- Rotate the knob switch to the 'F' (Capacitance) position.
- Sørg for, at kondensatoren er helt afladet, før du tilslutter testledningerne.
- Tilslut testledningerne over kondensatoren.
- Aflæs kapacitansværdien på LCD-displayet.
4.2.6 Frequency and Duty Cycle Measurement (Hz/DUTY)
Sådan måler du frekvens eller duty cycle:
- Rotate the knob switch to the 'Hz/DUTY' position.
- Tilslut testledningerne til signalkilden.
- The display will show the frequency (Hz). Press the 'RANGE' button to toggle to duty cycle measurement.
4.3 Dataholdefunktion
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.
Figur 4.2: The multimeter in use, demonstrating its ease of operation for various electrical tests, such as checking a car battery.
5. Vedligeholdelse
5.1 Rengøring
For at rengøre multimeteret skal du tørre huset af med enamp cloth and a mild detergent. Do not use abrasives or solvents. Ensure the device is dry before use.
5.2 Udskiftning af batteri
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 Opbevaring
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. Fejlfinding
This section addresses common issues you might encounter with your AUTOOL DM Mini Multimeter.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Skærmen er tom eller svag. | Lave eller døde batterier. | Udskift batterierne (se afsnit 3.1). |
| Ingen aflæsning eller "OL" vises. | Open circuit; measurement range exceeded; incorrect function selected. | Check test lead connections; ensure value is within range; select correct function. |
| Upræcise aflæsninger. | 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. Specifikationer
Detailed technical specifications for the AUTOOL DM Mini Digital Pocket Multimeter.
Figur 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 | Rækkevidde/værdi | Nøjagtighed |
|---|---|---|
| DC bindtage | 400 mV / 4 V / 40 V / 400 V / 600 V | ± (0.5% + 4) for 400mV-40V, ± (0.8% + 4) for 400V-600V |
| AC Voltage | 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 |
| Modstand | 400 Ω / 4 KΩ / 40 KΩ / 400 KΩ / 4 MΩ / 40 MΩ | ± (0.8% + 4) for 400Ω-4MΩ, ± (2.0% + 4) for 40MΩ |
| Kapacitans | 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 |
| Frekvens | 99.5 Hz til 9.999 MHz | ± (0.08% + 2) |
| Duty Cycle | 0.1 % til 99.9 % | ± (0.08% + 2) |
| Vise | 4000 tællinger LCD | |
| Sampling Rate | 3 gange / sekund | |
| Driftsmiljø | 0~40℃, Relative Humidity <80% | |
| Strømforsyning | 3V (2 x AAA Batteries) | |
| Dimensioner (L x B x H) | 12.5 x 8 x 1.95 cm | |
| Vægt | Approx. 131.54 grams (without batteries) |
8. Garanti og support
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 webwebsted. Gem din købskvittering som købsbevis i tilfælde af garantikrav.
For further assistance, please contact AUTOOL customer service through the contact information provided on their official webhjemmeside eller gennem din forhandler.
