1. Introduction
The BSIDE ZT-E8ER is a professional socket tester designed to quickly and accurately detect the wiring status of power outlets and test RCD (Residual Current Device) functionality. Featuring an advanced EBTN LCD screen, it provides clear, multi-result displays, including voltage, analog bar, and wiring status, enhancing the user's reading experience even in challenging lighting conditions. Its integrated non-contact voltage (NCV) detection adds versatility, making it an essential tool for electricians, homeowners, and DIY enthusiasts to ensure electrical safety.
2. Safety Information
Please read and understand all safety warnings and operating instructions before using this product. Failure to do so may result in electric shock, fire, or serious injury.
- Always ensure the device is in good working condition before use. Do not use if damaged.
- Do not open the product while measuring. There is a warning on the back of the device: "WARNING: DON'T OPEN PRODUCT WHILE MEASURING."
- This device is designed for testing standard AC outlets. Do not use it on circuits exceeding its specified voltage range (Max 250V).
- The RCD test function should only be performed by qualified personnel or with extreme caution, as it will trip the RCD, cutting power to the circuit.
- Do not immerse the device in water or expose it to excessive moisture.
- Keep out of reach of children.
- Always disconnect the device from the power outlet before cleaning or storing.
Figure 2.1: Rear view of the BSIDE ZT-E8ER showing the battery compartment and a safety warning against opening the product during measurement.
3. Product Overview
The BSIDE ZT-E8ER features a compact design with an intuitive EBTN LCD screen for clear readings.
Figure 3.1: Front view of the BSIDE ZT-E8ER Socket Tester, showing the display with correct wiring indication, voltage readings for L-N and N-E, and the NCV bar graph.
3.1. EBTN LCD Screen
The high-resolution EBTN (Enhanced Black Twisted Nematic) LCD screen significantly improves the reading experience, providing clear visibility even in bright sunlight or dark environments.
Figure 3.2: Close-up of the EBTN LCD screen, emphasizing its enhanced readability.
3.2. Display Elements
- L-N Voltage: Voltage between Live and Neutral wires.
- N-E Voltage: Voltage between Neutral and Earth wires.
- Wiring Status Indicators: Visual icons indicating correct or incorrect wiring configurations (e.g., missing Earth, Live-Neutral reverse).
- NCV Bar Graph: Indicates the strength of the non-contact voltage detection signal.
- Battery Indicator: Shows remaining battery life.
4. Setup
4.1. Battery Installation
The BSIDE ZT-E8ER requires 2 x AAA 1.5V batteries for operation.
- Locate the battery compartment on the back of the device.
- Open the battery cover by sliding or unscrewing it (refer to Figure 2.1).
- Insert two AAA 1.5V batteries, ensuring correct polarity (+/-).
- Close the battery cover securely.
The device will power on automatically when plugged into a live socket or when the power button is pressed for NCV function.
5. Operating Instructions
5.1. Socket Wiring Test
This function checks the wiring status of a standard AC power outlet.
- Plug the BSIDE ZT-E8ER directly into the power outlet you wish to test.
- The device will automatically power on and display the L-N and N-E voltage readings.
- Observe the wiring status indicators on the EBTN screen. The device provides 8 visual indications for various wiring conditions, such as:
- CORRECT: Indicates proper wiring.
- INCORRECT: Indicates a fault.
- MISSING EARTH: The earth wire is not connected.
- LIVE-EARTH REVERSE: Live and Earth wires are swapped.
- LIVE-NEUTRAL REVERSE: Live and Neutral wires are swapped.
- MISSING NEUTRAL: The neutral wire is not connected.
- MISSING LIVE: The live wire is not connected.
- LIVE-EARTH REVERSE & MISSING EARTH: A combination of faults.
- Refer to the on-screen icons for specific fault identification.
Figure 5.1: The socket tester displaying a "CORRECT" wiring status.
5.2. RCD (Residual Current Device) Test
The RCD test function verifies if the RCD (also known as GFCI in some regions) is functioning correctly by simulating a leakage current to trip the device. WARNING: This test will trip the RCD and cut power to the circuit. Ensure all connected devices are safely shut down before performing this test.
- Plug the BSIDE ZT-E8ER into an outlet protected by an RCD.
- Press the "RCD TEST" button on the device. The button is labeled "RCD TEST" and has a symbol of a triangle with an exclamation mark.
- If the RCD is functioning correctly, it should trip (switch off) within milliseconds, cutting power to the outlet.
- If the RCD does not trip, it indicates a potential fault with the RCD itself or the wiring, and further investigation by a qualified electrician is recommended.
- After the test, reset the RCD at your circuit breaker panel to restore power.
Figure 5.2: Demonstrating the RCD test function. Pressing the RCD test button will trip the RCD if it is working correctly.
5.3. Non-Contact Voltage (NCV) Detection
The integrated NCV function allows for quick detection of live voltage without direct contact, useful for identifying live wires or checking for voltage presence before plugging in the tester.
- Hold the device near the wire, cable, or outlet you want to test for voltage. The NCV sensor is typically located at the top of the device.
- Press and hold the ">>2S POWER" button to activate the NCV function.
- The NCV bar graph on the screen will illuminate and increase in segments, and an audible beep will sound, indicating the presence and strength of the AC voltage. More segments and faster beeps indicate stronger voltage.
- Release the button to deactivate NCV mode.
Figure 5.3: The device performing non-contact voltage detection near a wall outlet, illustrating its 2-in-1 functionality.
6. Maintenance
- Cleaning: Wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
- Battery Replacement: Replace batteries when the low battery indicator appears on the screen to ensure accurate readings.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Dead or incorrectly installed batteries. | Check battery polarity or replace with new AAA 1.5V batteries. |
| Inaccurate voltage readings. | Low battery. Device malfunction. | Replace batteries. If problem persists, contact customer support. |
| RCD test does not trip the RCD. | RCD is faulty. Wiring issue. | Consult a qualified electrician immediately. Do not use the outlet. |
| NCV function not detecting voltage. | No voltage present. Device malfunction. | Ensure voltage is present with another known good device. If problem persists, contact customer support. |
8. Specifications
| Parameter | Value |
|---|---|
| Brand | BSIDE |
| Model | ZT-E8ER |
| Power Source | Battery Powered (2 x AAA 1.5V) |
| Maximum Operating Voltage | 250 Volts |
| Measurement Type | Voltmeter, Socket Wiring Tester, RCD Tester, NCV Detector |
| Item Weight | 96 Grams |
| Dimensions (L x W x H) | 6.5 x 6.5 x 6.1 centimeters |
| Display Type | EBTN LCD |
| RCD Test Current | >30mA (as indicated on device) |
9. Warranty and Support
BSIDE products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your purchase or visit the official BSIDE website. Please retain your proof of purchase for warranty claims.
For further assistance, please contact BSIDE customer support through their official channels.
