1. Introduction
The UNI-T UT07B-EU is a compact and reliable socket tester designed for European (EU) electrical outlets. It provides a quick and easy way to verify the correct wiring of a socket and to test the functionality of Residual Current Devices (RCDs) at 230V, 50/60Hz. This manual outlines the proper use, safety precautions, and interpretation of results for the UT07B-EU socket tester.
2. Consignes de sécurité
Veuillez lire et comprendre toutes les consignes de sécurité avant d'utiliser l'appareil. Le non-respect de ces consignes peut entraîner un choc électrique, un incendie ou des blessures.
- Risque électrique : This device tests live electrical circuits. Always exercise extreme caution when working with electricity.
- Do Not Use If Damaged: Inspect the tester for any signs of damage before each use. Do not use if the casing, plug, or indicators are damaged.
- Utilisation en intérieur uniquement : This device is intended for indoor use in dry conditions. Do not expose to moisture or rain.
- Vol d'exploitationtage: Assurez-vous que le vol de la prisetage matches the tester's specified operating voltage (230 V).
- Test RCD : The RCD test will trip the RCD/circuit breaker. Ensure all connected equipment can safely handle a power interruption.
- Professional Interpretation: While the tester indicates wiring status, interpretation of complex electrical issues should be performed by a qualified electrician.
- Ne pas démonter : N’essayez pas d’ouvrir ou de réparer l’appareil. Il ne contient aucune pièce réparable par l’utilisateur.
3. Produit terminéview
The UNI-T UT07B-EU socket tester features a robust design with clear LED indicators and an RCD test button.

Figure 1: UNI-T UT07B-EU Socket Tester. The device features an EU plug, a main body with three indicator lights, and a prominent RCD test button.
Composants clés :
- Prise UE : For insertion into standard European wall sockets.
- LED Indicators (3): These lights illuminate in specific patterns to indicate the wiring status of the socket.
- Bouton de test du disjoncteur différentiel : Used to initiate the RCD (Residual Current Device) trip test.
4. Installation
The UNI-T UT07B-EU socket tester requires no complex setup. Simply ensure the device is clean and undamaged before use.
- Visually inspect the tester for any physical damage.
- Ensure the socket you intend to test is an EU type and operates at 230V.
5. Mode d'emploi
5.1. Wiring Test
To test the wiring of a socket:
- Plug the UT07B-EU tester firmly into the socket you wish to test.
- Observe the pattern of the three LED indicators on the tester.
- Refer to the table below to interpret the wiring status indicated by the LED pattern.
| LED 1 | LED 2 | LED 3 | État du câblage |
|---|---|---|---|
| ON | ON | ON | Câblage correct |
| DÉSACTIVÉ | ON | ON | Terre manquante |
| ON | DÉSACTIVÉ | ON | Neutre manquant |
| ON | ON | DÉSACTIVÉ | Missing Live |
| DÉSACTIVÉ | DÉSACTIVÉ | ON | Live/Earth Reverse |
| ON | DÉSACTIVÉ | DÉSACTIVÉ | Inversion Live/Neutre |
| DÉSACTIVÉ | ON | DÉSACTIVÉ | Neutral/Earth Reverse |
Note: The specific order of LEDs (1, 2, 3) may vary by device. Always refer to the markings on your specific UT07B-EU unit for precise identification of each LED.
5.2. Test du DDR (Dispositif Disjoncteur Relatif)
The RCD test function checks if the RCD protecting the circuit is operating correctly. This test will intentionally trip the RCD, cutting power to the circuit.
Avertissement de sécurité important : Before performing an RCD test, ensure that all sensitive electronic equipment connected to the circuit is safely shut down or disconnected to prevent data loss or damage. Be aware that power will be temporarily cut to the tested circuit.
- Plug the UT07B-EU tester into the socket.
- Verify that the wiring test indicates Câblage correct (all three LEDs ON). Do not proceed with the RCD test if there are wiring faults.
- Press and hold the RCD test button.
- The RCD protecting the circuit should trip, cutting power to the socket and causing the tester's LEDs to turn OFF.
- Release the RCD test button.
- Reset the RCD at your consumer unit/fuse box to restore power.
If the RCD does not trip when the button is pressed, it indicates a potential fault with the RCD or the electrical installation. In such a case, discontinue use and consult a qualified electrician immediately.
6. Entretien
The UNI-T UT07B-EU socket tester requires minimal maintenance.
- Nettoyage: Essuyez l'appareil avec un chiffon doux et sec. N'utilisez pas de nettoyants abrasifs ni de solvants.
- Stockage: Conservez le testeur dans un endroit frais et sec, à l'abri de la lumière directe du soleil et des températures extrêmes.
- Inspection: Periodically inspect the plug and casing pour tout signe d'usure ou de dommage.
7. Dépannage
- Tester does not light up when plugged in:
- Check if the socket is live using another known working appliance.
- Ensure the tester is fully inserted into the socket.
- The socket may have an 'Open Live' fault (refer to wiring test table).
- RCD does not trip during test:
- Ensure the wiring test indicates 'Correct Wiring' before attempting the RCD test.
- The RCD itself may be faulty and requires inspection by a qualified electrician.
- The tester may be faulty. Do not rely on a non-tripping RCD test; have the RCD checked professionally.
If you encounter issues not listed here or if troubleshooting steps do not resolve the problem, contact a qualified electrician for assistance.
8. Spécifications
- Modèle: UT07B-EU
- Vol d'exploitationtage: 230 V
- Courant de fonctionnement : < 18 mA
- Fréquence de fonctionnement : 50 Hz - 60 XNUMX Hz
- Dimensions: Environ 14.1 x 9.8 x 7.9 cm
- Poids: Approximately 0.1 Kilograms (100 g)
- Norme de sécurité : Conforme CE
- Source d'alimentation : Corded Electric (from socket under test)





