AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm, NC/NO Relay Output

General Description: This self-contained natural gas leak detector operates on 220V AC and is equipped with NC and NO relay outputs. It is designed to detect the presence of coal and natural gas, which have a lower density than air, and must be installed close to the gas source, within 2.5 meters. Technical Specifications: Supply Voltage: AC 220V; Output Type: NC and NO Relays; Detection Density: 6% LEL. Installation: Install close to the gas source, within 2.5 meters. Ensure that the power and signal cables are properly connected. Do not install outdoors or in damp locations. Avoid areas of high air circulation (ventilation, doorways). Do not isolate the detector from the gas source. Operation: After installation, switch on the device to begin the preheating process. The red LED will flash once, and the speaker will emit a sound to indicate that the device has started. In monitoring mode, press the S1 button to test operation. If the gas density reaches 6% LEL, the LED indicator will turn red and emit an alarm beep. To reset after an alarm, resolve the emergency situation and return the detector to normal operation. Other information: Regularly test the detector by filling a hole with gas for at least 5 seconds. Clean the detector regularly to maintain its sensitivity. The warranty will be void if the product is opened by the user.