1. Introducció
The Walfront Bside AST01 is a professional automatic electrical socket tester designed for quick and accurate verification of socket wiring conditions and RCD (Residual Current Device) functionality. This device helps ensure electrical safety in various environments by identifying common wiring faults.
It is suitable for electrical maintenance testing, office electricity safety testing, home improvement electrical safety testing, and general wall socket checks.

Image 1: The Walfront Bside AST01 Socket Tester, its packaging, and the included user manual.
2. Informació de seguretat
- Always ensure the device is used in accordance with local electrical safety regulations.
- Do not use the tester if it appears damaged or faulty.
- This device is designed for 220-250V AC, 50-60Hz EU plug sockets. Do not use with incompatible voltage or plug types.
- The RCD test button should only be pressed when testing RCD functionality. Be aware that pressing this button will trip the RCD, cutting power to the circuit.
- If any wiring fault is detected, consult a qualified electrician immediately. Do not attempt to fix electrical wiring unless you are qualified to do so.
- Mantenir fora de l'abast dels nens.
3. Producte acabatview
The Bside AST01 socket tester features a compact design with indicator lights and an RCD test button. The device is equipped with double-layer insulation protection for enhanced safety.
- Llums indicadores: Three LED lights (left, middle, right) display the wiring status.
- Botó de prova RCD: Used to test the functionality of Residual Current Devices.
- Número de model: AST01ER (printed on the device).

Imatge 2: Detallada view of the AST01ER tester, highlighting its indicator lights and RCD test button.
4. Configuració
The Walfront Bside AST01 socket tester requires no batteries or complex setup. It is ready for use directly out of the box.
- Ensure the socket you intend to test is a standard 220-250V AC, 50-60Hz EU type.
- Visually inspect the tester for any signs of damage before plugging it in.
- Insert the tester firmly into the wall socket.
Upon insertion, the indicator lights on the tester will illuminate according to the current wiring status of the socket. Refer to the 'Operating Instructions' and 'Troubleshooting' sections for interpretation.
5. Instruccions de funcionament
5.1. Socket Wiring Test
After plugging the tester into the socket, observe the pattern of the three indicator lights. The meaning of each pattern is detailed in the table below:
| Patró d'indicador | Wiring Status | Descripció |
|---|---|---|
| ● ● ● | CORRECTE | The wiring is correct. Live, Neutral, and Ground connections are properly established. |
| ● ● ● | GROUND OPEN | The ground wire is disconnected or not present. This is a serious safety hazard. |
| ● ● ● | NEUTRAL OPEN | The neutral wire is disconnected or not present. This can cause appliances to malfunction or pose a shock risk. |
| ● ● ● | LIVE/NEU REVERSE | The live and neutral wires are reversed. This is a safety hazard and can damage appliances. |
| ● ● ● | LIVE/GRD REVERSE | The live and ground wires are reversed. This is a very dangerous condition, as the appliance casing could become live. |
| ● ● ● | LIVE OPEN | The live wire is disconnected or not present. The socket will not provide power. |
| ● ● ● | LIVE GROUND REVERSE MISSING GROUND | A combination of live/ground reverse and missing ground. Extremely hazardous. |
Nota: ● indicates a green light, ● indicates a red light, ● indicates an unlit light.

Image 3: The tester indicating correct wiring with two green lights illuminated.
5.2. RCD Leakage Switch Test
The RCD test function verifies if your Residual Current Device (RCD) is working correctly. An RCD is a vital safety component designed to prevent electric shock by quickly disconnecting power if an earth fault is detected.
- Plug the AST01 tester into a socket that is protected by an RCD.
- Ensure the socket wiring is correct (two green lights illuminated) before proceeding with the RCD test.
- Press the black RCD test button located on the tester.
- If the RCD is functioning correctly, it should trip (switch off) within milliseconds, cutting power to the circuit.
- If the RCD does not trip, it indicates a fault with the RCD or the wiring. Do not use the socket and consult a qualified electrician immediately.
- To restore power, reset the RCD at your consumer unit/fuse box.

Image 4: A hand demonstrating the pressing of the RCD test button on the socket tester.
6. Solució De Problemes
The Bside AST01 tester provides immediate visual feedback for common wiring issues. Refer to the table in Section 5.1 for specific light patterns and their meanings.
- Sense llums: If no lights illuminate when plugged in, check if the socket is live (e.g., with another appliance). If the socket is live, the tester may be faulty, or there might be a complete circuit break (Live Open).
- Indicació de cablejat incorrecte: If the tester indicates any fault other than 'CORRECT', it means there is a wiring issue. These issues can be dangerous.
- RCD Does Not Trip: If the RCD test button is pressed and the RCD does not trip, the RCD itself may be faulty, or there could be a wiring problem preventing it from functioning correctly.
In all cases of detected wiring faults or RCD malfunction, it is crucial to stop using the affected socket and consult a qualified electrician for diagnosis and repair.
7. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | AST01ER |
| Marca | Walfront |
| Voltage Rang | 220-250V AC |
| Freqüència | 50-60 Hz |
| Rated Residual Operating Current | 5 mA |
| Tipus d'endoll | Endoll de la UE |
| Dimensions del producte | 5.8 x 5.3 x 5.3 cm (2.28 x 2.09 x 2.09 polzades) |
| Pes de l'article | 61 grams |
| Color | Negre |
| Certificació | IEC 61010-1 |
| Piles necessàries | No |

Image 5: Dimensional drawing of the AST01ER socket tester.
8. Manteniment
- Mantingueu el dispositiu net i sec. Netegeu-lo amb un drap suau i sec.amp drap si cal. No utilitzeu productes de neteja abrasius ni dissolvents.
- Guardeu el provador en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Regularly inspect the tester for any physical damage, such as cracks in the casing o agulles doblegades. No utilitzeu si està danyat.
9. Garantia i Suport
Per obtenir informació sobre la garantia o assistència tècnica, consulteu la documentació proporcionada amb la compra o poseu-vos en contacte directament amb el venedor. Conserveu el comprovant de compra per a reclamacions de garantia.
