1. Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of the GODIYMODULES 4 Bit 0.36 inch Mini Digital Voltmeter. This device is designed for accurate DC voltage measurement within a range of 0.000V to 100.0V. Please read this manual thoroughly before use to ensure proper functionality and safety.
2. Característiques del producte
- Alta precisió voltage mesura.
- Clear 0.36 inch 4-digit LED display.
- Compact size for easy integration into various projects.
- Vol operatiu amplitagrang e (4-30 V DC).
- Fast refresh rate of 3 times per second.
3. Contingut del paquet
Cada paquet conté els articles següents:
- 3 x Mini Digital Voltmeters (1 Red, 1 Green, 1 Blue LED display)
Image 3.1: Three mini digital voltmeters included in the package, featuring red, green, and blue LED displays.
4. Especificacions
| Interval de mesura | CC 0.000V - 100.0V |
| Mode de visualització | 0.36 inch 4-digit LED digital tube |
| Vol. Operatiutage | DC 4V - 30V (Recommended: 5V - 12V) |
| Consum d'energia | ≤20mA |
| Freqüència d'actualització | 3 vegades / segon |
| Precisió de la prova | 0.3% (Maximum error = Range x 0.003) |
| Dimensions del producte | 40.53 mm × 14.43 mm × 10.68 mm |
| Abertura de muntatge | 2.9 mm |
| Longitud del plom | 20 cm |
Image 4.1: Detailed dimensions of the voltmeter module and its wiring diagram.
5. Configuració i cablejat
The voltmeter features a 3-wire connection system. Proper wiring is crucial for correct operation and to prevent damage to the device.
5.1 Wire Definitions
- Fil vermell: Working Power Positive (Connect to the positive terminal of the power supply for the voltmeter itself, typically 4-30V DC).
- Fil negre: Common Negative (Connect to the negative terminal of both the working power supply and the circuit being measured).
- Filferro blau: Test Power Positive (Connect to the positive terminal of the voltage source you wish to measure, 0-100V DC).
5.2 Esquema de cablejat
Refer to the diagram below for correct wiring connections:
Image 5.1: Wiring diagram illustrating the connection of the red, black, and blue wires to the meter power and test power sources.
Important: Assegureu-vos que el vol operatiutage for the voltmeter (Red and Black wires) is within the 4-30V DC range. The voltage being measured (Blue and Black wires) can be up to 100V DC. Connect the black wire to the common ground of both power sources if they are separate.
5.3 Calibration Fine-Tuning
The voltmeter includes a calibration fine-tuning potentiometer on the PCB. If minor adjustments to the reading accuracy are required, use a small screwdriver to carefully turn the potentiometer. This should only be done if you have a known accurate voltage reference for comparison.
Imatge 5.2: View of the voltmeter's circuit board, highlighting the calibration fine-tuning component.
6. Funcionament
Once properly wired and powered, the voltmeter will automatically display the measured DC voltage on its 4-digit LED screen. No further user interaction is typically required for basic voltagSeguiment.
- La pantalla mostrarà el voltage in Volts (V) with three decimal places for precision (e.g., 12.345V).
- Ensure the measured voltage does not exceed 100.0V DC to prevent damage.
Imatge 6.1: Ex.amples of the voltmeter in operation, displaying readings with red, green, and blue LED colors.
7. Solució De Problemes
- Sense pantalla:
- Check if the working power supply (Red and Black wires) is connected correctly and providing 4-30V DC.
- Ensure the black wire is properly connected to the negative terminal.
- Verify that the power supply is active.
- Incorrect Reading:
- Confirm that the blue wire is connected to the correct positive terminal of the voltage source being measured.
- Ensure the black wire is common to both the meter's power and the measured voltage font.
- If a slight offset is observed, use the calibration fine-tuning potentiometer (refer to Section 5.3) with a known accurate reference.
- Verify the measured voltage is within the 0-100V DC range.
- Pantalla parpellejant:
- Check for unstable power supply to the voltmeter (Red and Black wires).
- Ensure connections are secure and free from intermittent contact.
8. Manteniment
The GODIYMODULES Mini Digital Voltmeter is designed for low maintenance. Follow these guidelines to ensure longevity:
- Mantingueu el dispositiu net i lliure de pols i humitat.
- Avoid exposing the voltmeter to extreme temperatures or direct sunlight.
- Do not apply excessive force to the wires or the PCB.
- Store in a dry, cool environment when not in use.
9. Garantia i Suport
For warranty information or technical support, please contact your retailer or the manufacturer, GODIYMODULES. Keep your purchase receipt as proof of purchase.
Manufacturer: GODIYMODULES
Part Number: 4Bit-036-001
