GVDA GD116 Series Non-Contact AC Voltage Detector

1. Safety Instructions

WARNING:

• Read this instruction manual carefully before use and strictly observe all safety rules and warnings.
• Improper use may compromise the protection functions of the device.
• Do not use the voltage detector if the display is not working.
• Before each use, test the detector on a known live circuit to ensure it is functioning correctly.
• Even without a visual or audible alarm, voltage may still be present. The detector indicates effective voltage when the electrostatic field is strong enough. Weak fields may not be detected.
• Do not use if the device is damaged, especially check the probe tip for cracks or breaks.
• Do not apply voltage exceeding the rated limits marked on the device.
• Exercise extreme caution when testing voltages above 30V AC, as this poses a risk of electric shock.
• Always comply with local and national safety regulations and use appropriate personal protective equipment.

2. Product Overview

The GVDA GD116 series is a handheld non-contact AC voltage detector designed for electrical professionals and DIY enthusiasts. It offers a range of features for safe and efficient electrical testing.

Figure 2.1: GVDA AC Voltage Detector with packaging and manual. Features include LCD display, breakpoint detection, auto zero/fire live detection, adjustable sensitivity, sound and light alarm, and flashlight.

Key Features:

• Non-contact voltage detection for enhanced safety.
• LCD display for clear readings.
• Breakpoint detection.
• Auto Zero / Fire Live Detection.
• Adjustable sensitivity (12-1000V AC and 48-1000V AC).
• Audible and visual (sound and light) alarms.
• Integrated LED flashlight for working in dark environments.
• Phase sequence detection (GD116B model only).

Figure 2.2: The three models of the GVDA GD116 series voltage detector (GD116A, GD116B, GD116C).

3. Setup

3.1 Parts Identification

1. Induction Probe Tip
2. LED Flashlight
3. Signal Indicator Light
4. LCD Display Screen
5. Power On/Off Button
6. Sensitivity / Phase Detection / Flashlight Button
7. Battery Cover

3.2 Battery Installation

The GVDA GD116 series requires two 1.5V AAA batteries (not included).

1. Rotate the battery cover (7) counter-clockwise to open it.
2. Insert two 1.5V AAA batteries, observing the correct polarity (+/-) as indicated inside the compartment.
3. Replace the battery cover and rotate it clockwise to securely lock it.

WARNING: To avoid electric shock, ensure the battery cover is fully closed and locked before using the voltage detector.

4. Operating Instructions

4.1 Power On/Off

• To Power On: Press and hold the Power On/Off Button (5) for more than 1 second. The device will beep once, the screen will light up, and it will enter the testing state.
• To Power Off: Press the Power On/Off Button (5) briefly while the device is on.

4.2 NCV High/Low Sensitivity Switching

The detector defaults to low sensitivity mode (