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Autonomous Natural Gas Leak Detector AC 220V NC/NO Relay Mains Output Fire Sensor

First, determine the gas density in the air, then mount this detector near the gas source within 2.5 m. (Note: Coal gas and natural gas are less dense than air, so they are at a higher level. LPG is less dense than air, so it is at a lower level.)

Ensure the power and signal cables are properly connected to the detector, then turn the device on. The device will then start as follows:

1. Warm-up state. The red LED flashes once and the speaker emits a sound.

2. Normal state. The green LED flashes once per minute for approximately 3 minutes.

3. Monitoring state.

The green LED is constantly lit.

To check if the detector is working correctly, press button S1 on the PCB. If the red LED is lit and the speaker sounds, the detector is working correctly.

When the gas density reaches 6% LEL, the LED turns red and flashes, and the speaker beeps (the alarm beep frequency depends on the gas density; the higher the density, the higher the frequency).

When the emergency situation is resolved, the detector can be reset to normal operation.

The red LED flashes and the speaker sounds in the event of a detector malfunction; the internal timer emits alarm signals.

The detector can be returned to normal operation once the malfunction is resolved.

Testing and Maintenance

Testing Methods: Continue filling the gas hole for at least 5 seconds while the detector is in monitoring mode. If the flashing and audible alarm sounds, this indicates that the detector is functioning correctly (for example, you can use a gas lamp to perform this test).

This product has high environmental requirements; please clean the detector regularly (e.g., remove dust, oil, moisture, etc.). Sensitivity depends greatly on the cleanliness of the detection area. Precautions: Do not install this device outdoors or in damp locations. Do not install this device near areas with high air circulation, such as ventilation areas, fans, or doorways. Do not install this device in locations isolated from the gas source. Ensure that no excessive chemical liquids are used near this detector, such as light fixtures, pesticides, ethanol, etc. In case of malfunction, please check that the input and output lines are properly connected. The warranty will be void if this product is opened by the user.