1. ບົດແນະນຳ
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. ຄຸນລັກສະນະຂອງຜະລິດຕະພັນ
- ຄວາມແມ່ນຍໍາສູງ voltage ການວັດແທກ.
- Clear 0.36 inch 4-digit LED display.
- Compact size for easy integration into various projects.
- ປະລິມານການດໍາເນີນງານກ້ວາງtage ຊ່ວງ (4-30V DC).
- Fast refresh rate of 3 times per second.
3. ເນື້ອໃນຊຸດ
ແຕ່ລະຊຸດປະກອບມີລາຍການຕໍ່ໄປນີ້:
- 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. ຂໍ້ມູນຈໍາເພາະ
| ໄລຍະການວັດແທກ | ກະແສໄຟຟ້າ DC 0.000V - 100.0V |
| ໂໝດສະແດງຜົນ | 0.36 inch 4-digit LED digital tube |
| ການດໍາເນີນງານ Voltage | DC 4V - 30V (Recommended: 5V - 12V) |
| ການບໍລິໂພກພະລັງງານ | ≤20mA |
| ອັດຕາການໂຫຼດຂໍ້ມູນຄືນໃໝ່ | 3 ຄັ້ງ / ວິນາທີ |
| ທົດສອບຄວາມຖືກຕ້ອງ | 0.3% (Maximum error = Range x 0.003) |
| ຂະໜາດສິນຄ້າ | 40.53mm × 14.43mm × 10.68mm |
| ການຕິດຕັ້ງ Aperture | 2.9ມມ |
| ຄວາມຍາວນໍາ | 20ຊມ |
Image 4.1: Detailed dimensions of the voltmeter module and its wiring diagram.
5. ການຕິດຕັ້ງ ແລະສາຍໄຟ
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
- ສາຍສີແດງ: Working Power Positive (Connect to the positive terminal of the power supply for the voltmeter itself, typically 4-30V DC).
- ສາຍດຳ: Common Negative (Connect to the negative terminal of both the working power supply and the circuit being measured).
- ລວດສີຟ້າ: Test Power Positive (Connect to the positive terminal of the voltage source you wish to measure, 0-100V DC).
5.2 ແຜນວາດສາຍ
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.
ສຳຄັນ: ໃຫ້ແນ່ໃຈວ່າການດໍາເນີນການ voltage 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.
ຮູບພາບ 5.2: View of the voltmeter's circuit board, highlighting the calibration fine-tuning component.
6. ການດໍາເນີນງານ
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 voltage ການຕິດຕາມກວດກາ.
- ຈໍສະແດງຜົນຈະສະແດງ 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.
ຮູບພາບ 6.1: ຕົວຢ່າງamples of the voltmeter in operation, displaying readings with red, green, and blue LED colors.
7. ການແກ້ໄຂບັນຫາ
- ບໍ່ມີການສະແດງຜົນ:
- 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 ແຫຼ່ງ.
- 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.
- ຈໍສະແດງຜົນ Flickering:
- Check for unstable power supply to the voltmeter (Red and Black wires).
- Ensure connections are secure and free from intermittent contact.
8. ບໍາລຸງຮັກສາ
The GODIYMODULES Mini Digital Voltmeter is designed for low maintenance. Follow these guidelines to ensure longevity:
- ຮັກສາອຸປະກອນໃຫ້ສະອາດ ແລະບໍ່ມີຝຸ່ນ ແລະ ຄວາມຊຸ່ມຊື່ນ.
- Avoid exposing the voltmeter to extreme temperatures or direct sunlight.
- Do not apply excessive force to the wires or the PCB.
- ເກັບຮັກສາໄວ້ໃນສະພາບແວດລ້ອມທີ່ແຫ້ງ, ເຢັນເມື່ອບໍ່ໄດ້ໃຊ້.
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
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
