Introduzione
This manual provides detailed instructions for the installation, operation, and maintenance of the diymore 0.28" Volt Amp Meter. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
The diymore Volt Amp Meter is a compact digital display unit designed for measuring DC voltage and current. It features a dual LED display, showing both voltage and current simultaneously. It is suitable for various applications, including automotive battery monitoring and general electrical measurements.

Caratteristiche del prodotto
- Doppio display: Simultaneous display of voltage and current on a 0.28" digital tube.
- Ampia gamma di misurazioni: Misura il volume DCtage from 0-100V and DC current from 0-10A.
- Alta precisione: 1% (± 1 digit) measurement accuracy.
- Design compatto: Small dimensions (48mm x 29mm x 26mm) for easy integration.
- Shunt incorporato: For current measurements up to 10A, no external shunt is required.
Precauzioni di sicurezza
- Voltage Limite: Do not exceed 30V DC for the meter's working voltage. Exceeding this limit will damage the device.
- Limite corrente: The meter is designed for currents up to 10A. Ensure the circuit current does not exceed this value.
- Polarità: Always observe correct polarity when connecting the meter to a circuit. Incorrect connections can cause damage.
- Installazione professionale: If you are unsure about wiring, consult a qualified electrician or technician.
- Ambiente operativo: Use the meter within the specified operating temperature range (-10℃ to +65℃).
Configurazione e installazione
The diymore Volt Amp Meter requires a DC power source for its operation and separate connections for voltage e misurazione della corrente.
Schema elettrico

- Thin Black and Red Wires: These are for the meter's power supply (DC 4.5-30V). The red wire connects to the positive (+) terminal, and the black wire connects to the negative (-) terminal of the power source.
- Thin Black and Yellow Wires: These are for voltage measurement (DC 0-100V). The yellow wire connects to the positive (+) point of the circuit being measured, and the black wire connects to the negative (-) point.
- Thick Red and Black Wires: These are for current measurement (DC 0-10A). The thick red wire connects in series with the positive (+) side of the load, and the thick black wire connects to the negative (-) side of the load, completing the circuit through the meter.
Fasi di connessione
- Collegamento dell'alimentazione: Connect the thin red wire to the positive (+) terminal of a DC 4.5-30V power supply and the thin black wire to the negative (-) terminal. This powers the meter itself.
- Voltage Measurement Connection: Connect the thin yellow wire to the positive (+) point of the circuit or device whose voltage you wish to measure. Connect the thin black wire (common ground) to the negative (-) point of the same circuit.
- Current Measurement Connection: The thick red and black wires are for current measurement. These must be connected in series with the load.
- Disconnect the positive (+) supply line to your load.
- Connect the thick red wire from the meter to the positive (+) supply.
- Connect the thick black wire from the meter to the positive (+) terminal of your load.
- Ensure the load's negative (-) terminal is connected to the negative (-) supply.
Note: For current measurements up to 10A, the meter has a built-in shunt. Do not add an external shunt.
Installazione fisica
The meter is designed for panel mounting. Ensure the cutout dimensions are appropriate for the meter's size (48mm x 29mm x 26mm). Secure the meter in place using the integrated clips or a suitable mounting bracket.

Istruzioni per l'uso
Once properly wired and powered, the diymore Volt Amp Meter will automatically display the measured voltage and current on its dual LED screen.

- The upper (blue) display indicates the voltage in Volt (V).
- The lower (green) display indicates the current in Ampere (A).
- The display refreshes approximately every 300 milliseconds.
No calibration or adjustment is typically required for standard operation. The meter is designed for direct measurement within its specified ranges.
Manutenzione
The diymore Volt Amp Meter is a low-maintenance device. Follow these guidelines to ensure its longevity:
- Pulizia: Utilizzare un panno morbido e asciutto per pulire il display e casing. Non utilizzare detergenti abrasivi o solventi.
- Protezione ambientale: Avoid exposing the meter to excessive moisture, dust, or extreme temperatures outside its operating range.
- Integrità della connessione: Controllare periodicamente tutti i collegamenti dei cavi per accertarsi che siano saldi e privi di corrosione.
- Nessuna parte riparabile dall'utente: The device contains no user-serviceable parts. Do not attempt to open or repair the meter yourself, as this may void the warranty and cause further damage.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| No Display / Meter Off |
|
|
| Voltage Reading is Zero or Incorrect |
|
|
| Current Reading is Zero or Incorrect |
|
|
Specifiche
| Parametro | Valore |
|---|---|
| Volume di lavorotage | DC 4.5-30V |
| Corrente di lavoro | ≤20mA |
| Voltage Campo di misura | DC 0-100V |
| Campo di misurazione della corrente | CC 0-10 A |
| Voltage Resolution (V) | 0.1V |
| Current Resolution (A) | 0.01A |
| Misurare la precisione | 1% (± 1 cifre) |
| Frequenza di aggiornamento | About 300mS / times |
| Dimensioni | Dimensioni: 48 mm x 29 mm x 26 mm |
| Temperatura di funzionamento | da -10℃ a +65℃ |
Garanzia e supporto
diymore products are manufactured to high quality standards. For warranty information or technical support, please contact diymore customer service through the platform where you purchased the product or visit the official diymore websito.
Conservare la prova d'acquisto per eventuali richieste di garanzia.





