1. Introduction
The ANENG GN805 is a highly sensitive combustible gas leak detection device designed for quick and reliable detection of various combustible gases. It features a gas-sensitive semiconductor sensor, an LCD backlight screen, and adjustable sensitivity settings to ensure safety and accuracy in diverse environments.
2. Package Contents
Upon unpacking, please verify that all items listed below are present and in good condition:
- 1 x Color box packaging
- 1 x ANENG GN805 Combustible Gas Leak Detector
- 1 x User Manual
Figure 2.1: Package Contents
3. Specifications
| Feature | Description |
|---|---|
| Product Model | GN805 |
| Sensor | Gas sensitive semiconductor |
| Response Range | 50~1000ppm (Methane) |
| Sensitivity | Approx. < 50ppm |
| Detectable Gases | Acetone, Acetylene, Alcohol, Ammonia, Benzene, Ethanol, Acetylene oxide, Gasoline, Ethane, Hydrogen, Methane/natural gas, Oil brain, Paint thinner, Propane, Solvents, etc. |
| Battery Type | 2 x 1.5V AAA batteries (size 7) |
| Warm-up Time | 30 seconds |
| Response Time | <=500ppm: about 5 seconds; >500ppm: about 2 seconds |
| Alarm Method | Sound and indicator lights |
| Adjustable Sensitivity | S key toggle (High/Low) |
| Display | LCD Screen with Backlight |
| Operating Environment | Temperature: 0℃-50℃, Humidity: 20%-80% RH |
| Storage Conditions | Temperature: -10℃-60℃, Humidity: 20%-80% RH |
| Automatic Shutdown | After 4 minutes of no operation |
| Dimensions (L x W x H) | 180.8mm x 26.1mm x 29.2mm (Approx. 7.12 x 1.03 x 1.15 inches) |
| Weight | 75.7g (including battery) |
Figure 3.1: Product Overview and Dimensions
4. Setup
4.1 Battery Installation
The ANENG GN805 requires two AAA batteries (not included). Follow these steps to install them:
- Use a screwdriver to open the battery cover located at the back of the device.
- Insert two AAA batteries into the battery compartment, ensuring correct polarity (+/-). The springs on both sides are designed to securely hold the batteries.
- Close the battery cover and fasten it with the screwdriver.
Figure 4.1: Battery Installation Steps
Figure 4.2: Battery Compartment and Automatic Shutdown Feature
5. Operating Instructions
5.1 Power On and Warm-up
- Press and hold the power button (red button) for 2 seconds to turn the device on.
- The sensor requires a warm-up period of approximately 30 seconds. During this time, the simulation strip cycles on the display.
- A beep will sound to indicate that the preheating is complete and the device is ready for use.
5.2 Display and Controls
- LCD Backlight: Long press the 'S' key to turn the backlight on or off.
- Temperature Display: Short press the 'S' key to switch between Celsius (°C) and Fahrenheit (°F) temperature values.
- Sensitivity Adjustment: Use the 'S' key to toggle between high and low sensitivity modes. High sensitivity is suitable for detecting small leaks, while low sensitivity is for larger concentrations or general checks.
Figure 5.1: High and Low Sensitivity Switching
5.3 Gas Detection Procedure
To detect gas leaks, hold the detector with the gas sensor (sensing place) near the suspected leak source. The device will provide visual and auditory alarms if gas is detected.
- Visual Alarm: The indicator light will flash, and the screen's analog bar will rise, indicating the gas concentration.
- Auditory Alarm: A beeping sound will increase in frequency as the gas concentration rises.
Figure 5.2: Multiple Detectable Gases
Video 5.1: Product Demonstration (Unboxing, Battery Installation, Warm-up, and Various Detection Scenarios)
Detection Examples:
- Gasoline Leak Detection (Car): Place the sensor near the fuel tank opening. If the gas concentration exceeds 20% LFL (Lower Flammable Limit) safe value, the indicator light flashes and the signal becomes urgent.
- Natural Gas Fuel Gauge: When checking a natural gas fuel gauge, if the screen analog bar does not rise and there is no signal alarm sound, it indicates safety.
- Water Heater Pipe: The detector can be used to identify gas leaks from water heater pipes. A rising analog bar and alarm indicate a leak.
- Gas Stove Leak Detection: Test around the gas stove burners. A strong alarm indicates a leak.
- Gas Stove Hose: Check the gas stove hose for leaks. No alarm indicates safety.
- Generator Gasoline Test: Insert the sensor into the generator's gasoline tank. An alarm indicates the presence of gas, which can be dangerous.
- Gas Cylinder Detection: Real-time detection of released gas from a gas cylinder.
- Alcohol/Ethanol Test: Accurately detects sprayed alcohol.
- Lighter Gas Detection: Detects gas released from a lighter.
Figure 5.3: Gasoline Leak Detection
Figure 5.4: Gas Leak Detection at a Gas Stove
5.4 Automatic Shutdown
The device features an automatic shutdown function. If there is no operation within 4 minutes, the detector will automatically turn off to conserve battery life.
6. Maintenance
- Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Avoid exposing the detector to extreme temperatures or humidity.
- Store the device in a cool, dry place when not in use.
- If the device will not be used for an extended period, remove the batteries to prevent leakage.
- Do not attempt to disassemble or repair the device yourself, as this will void the warranty and may cause damage or injury.
7. Troubleshooting
- Device does not power on: Ensure that the batteries are correctly installed with the proper polarity and are not depleted. Replace batteries if necessary.
- Inaccurate readings or no detection: Ensure the sensor is clean and unobstructed. Allow sufficient warm-up time (30 seconds). Check the sensitivity setting (High/Low) and adjust as needed for the detection scenario.
8. User Tips
- Always perform a quick check of the device's functionality before critical use.
- For best results, ensure the detection area is well-ventilated before testing, then bring the sensor close to the suspected leak point.
- Remember that the device has an automatic shutdown feature after 4 minutes of inactivity, which helps save battery life.
9. Warranty and Support
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
