Introduzione
The allsun GMEM287 Automotive Electrical Circuit Tester is a versatile diagnostic tool designed for automotive electrical systems. It allows technicians and DIY enthusiasts to quickly and accurately test various electrical parameters, ensuring efficient troubleshooting and maintenance.
Prodotto finitoview
Componenti

Descrizione dell'immagine: A detailed diagram of the allsun GMEM287 circuit tester, highlighting its various components including the probe tip, illuminator, test indicator, voltage indicator LEDs, rock switch, selection switch, touch metal area, red and black battery clips, and the auxiliary ground lead.
Funzioni chiave

Descrizione dell'immagine: A visual representation listing the multi-functional capabilities of the GMEM287 circuit tester, such as testing continuity, voltage polarity, DC voltage measurement, checking lamps and electric motors, and locating short circuits.
- Test di continuità
- Verifica la polarità di un voltage
- Misura il volume DCtage da 2V a 24V
- Controlla lamps and electric motors
- Segue e individua i cortocircuiti
- Test per contatti di terra difettosi
- Features an illumination function for dark environments
Specifiche

Descrizione dell'immagine: A graphic displaying the key specifications of the allsun GMEM287, including operation voltage, cable length, DC voltage measurement range, overload protection, size, and weight.
| Specificazione | Valore |
|---|---|
| Operazione Voltage | 8-24V DC |
| Volume DCtage Intervallo di misurazione | 2-24V DC |
| Protezione da sovraccarico | 8A (Unit disconnects automatically if current exceeds 8A) |
| Lunghezza del cavo | Circa 5 m (16 piedi) |
| Size (Main Body) | Dimensioni: 27.4 x 5.3 x 4.2 cm |
| Peso | Circa 385 g |
| Fonte di alimentazione | Veicolo alimentato a batteria |
| Valutazione della temperatura superiore | 125 gradi Celsius |
| Tipo di misurazione | Voltmetro |
Impostare
Collegamento alla batteria del veicolo
The allsun GMEM287 is powered directly by the vehicle's battery. Follow these steps to connect the tool:
- Collegare il ROSSO batteriaamp al POSITIVO terminale della batteria del veicolo.
- Collegare il NERO clamp al NEGATIVO terminale della batteria del veicolo.
- Once connected, the tool will power on, and the display will activate.

Descrizione dell'immagine: A hand connecting the red and black clamps of the GMEM287 circuit tester to the positive and negative terminals of a car battery, illustrating the power setup.

Descrizione dell'immagine: A series of diagrams illustrating different ways to connect the circuit tester for various diagnostic tasks, including direct battery connection, testing components, and checking for shorts.
Istruzioni per l'uso
Voltage e test di polarità
Per testare il voltage and polarity, contact the probe tip to the circuit point. The tool's display will show the voltage reading, and the LEDs will indicate polarity:
- A ROSSO LED indicates positive voltage.
- A VERDE LED indicates negative voltage (terra).

Descrizione dell'immagine: The allsun GMEM287 circuit tester held in a hand, with its display showing operation voltage, DC voltage range, and overload protection specifications. The probe tip is visible.
Test di continuità
Connect the auxiliary ground lead to a known good ground. Touch the probe tip to the component or wire you wish to test. If the circuit is continuous, the green LED will light and a beep tone will sound.
Short Circuit Tracing
The tool's long cable allows you to follow and locate short circuits along the entire length of the vehicle without constantly searching for suitable vehicle grounds. The audible tone and LED indicators will guide you to the fault location.
Attivazione dei componenti
By depressing the power switch (rocker switch) forward or backward, you can conduct a positive or negative battery current to the probe tip for testing the function of an electrical component without the use of jumper wires. This is useful for activating components like fuel pumps, starter solenoids, magnetic clutches, blower motors, cooling fans, and lights.
Prove a terra
Verifica istantaneamente la presenza di scarsi contatti con il suolo senza eseguire il voltage drop tests. The green LED will indicate a good ground connection.
Funzione di illuminazione
The tool features a built-in flashlight to illuminate the test area, enabling automotive technicians to work in dark environments.

Descrizione dell'immagine: A split image showing the long cable length of the GMEM287 circuit tester on the left, and a hand demonstrating the built-in flashlight illumination feature on the right, useful for working in low-light conditions.
Manutenzione
Pulizia
Keep the tool dry, clean, and free from oil, water, or grease. Use a mild detergent on a clean cloth to clean the outside of the tool when necessary.
Protezione da sovraccarico
The tool is short-circuit protected. Its internal circuit breaker will trip if it becomes overloaded (current exceeds 8A). This protects the tool from damage. If the circuit breaker trips, allow it to cool before resuming use.
Risoluzione dei problemi
- Nessun potere: Garantire la batteria clamps are securely connected to the correct terminals of the vehicle battery. Check for corrosion on battery terminals.
- Letture errate: Verify that the probe tip is making good contact with the circuit. Ensure the tool is in the correct operating mode for the test being performed.
- Circuit Breaker Trips: If the internal circuit breaker trips, it indicates an overload. Disconnect the probe from the circuit, allow the tool to cool, and check the circuit for shorts or excessive current draw before retesting.
- No Audible Tone/LED Indication: Check battery connections. Ensure the tool is functioning correctly by performing a quick self-test on a known good circuit.
Garanzia e supporto
Informazioni sulla garanzia
This allsun GMEM287 Automotive Electrical Circuit Tester comes with a Garanzia di 1 anno dalla data di acquisto, coprendo difetti di fabbricazione e malfunzionamenti in condizioni di normale utilizzo. Si prega di conservare la prova d'acquisto per eventuali reclami in garanzia.
Assistenza clienti
For technical assistance, troubleshooting, or warranty inquiries, please contact allsun customer support. Refer to the contact information provided with your product packaging or visit the official allsun websito per le risorse di supporto.