1.Production Introduction

The combustible gas detector(Hereinafter referred to as detector) is equipped with advanced microprocessing technology and a high-quality semiconductor gas sensor that offers excellent stability. The detector is used to detect combustible gas, and the fire caused by the diffusion of combustible gas can be safely detected and warned.It is highly sensitive, reliable, smoke-resistant, alcohol-resistant, and comes with an automatic temperature compensation function. It is suitable for use in homes, apartments, and other locations that require flammable gas safety monitoring.

 

2.Features

• The gas sensor has excellent linearity, high stability, and a long lifespan.
• It features a compact size, simple installation, and easy operation.
• There is a built-in buzzer with an alarm function for added safety.
• An LED status indicator clearly shows normal operation, as well as any faults.
• The device also includes intuitive buttons and a self-test function for ease of use.

 

3.Specification

Working Voltage: AC220V±15%/50Hz

 Consumption:Normal monitoring≤2W, Alarm state≤3W

Alarm Sound:≥70dB/1m

Detecting Gas: CH4

Range:0-25%LEL

Alarm Setting Value:8%LEL

Alarm Mode:Audible and visual alarm,wireless transmission

Frequencymaterial:433MHz/868MHz/LoRa433MHz/LoRa868MHz

Sensor Life: 3years

Working Environment:-10℃~＋50℃

Working Humidity:≤95%RH

Dimension:88.8mm×88.8mm×33.6mm

Shell Material:ABS Plastic

Color: White

 

4.Structural feature

(1).The appearance of the detector is shown in the figure

(2).Control output interface:

The detector has a control output interface for starting the solenoid valve after the detector alarm

 

5.Installation

Installation location selection:

It is important to choose a spot that is as close as possible to the valve, pipe interface, and air outlet, while still maintaining a radius of 1 meter to avoid potential leaks.  However, make sure that the location does not interfere with the operation of other equipment, and try to avoid areas with high temperature and humidity."

Forbidden installation position:

Please note that the detector should not be installed in the following positions to avoid detector failure:

(1). In a location where there is limited air circulation, such as a corner or inside a cabinet.

(2). In a position where it is directly exposed to oil fumes.

(3). In areas that are directly affected by exhaust gas, steam, and fumes produced by cookware, etc.

(4). Close to air supply ports, exhaust fans, doors, and other places with large airflow.

(5). In areas with high moisture.

(6). In hot water rooms or where the power goes out at night

(7). In areas where there is an object separating the probe from the gas equipment.

 

Please avoid installing the detector in the following circumstances:

(1).The interior is not painted and decorated

(2).The decoration of the house but the comprehensive ventilation is less than 5 days

(3).Create wood furniture in the room, or purchase new wood furniture, but comprehensive ventilation is less than three days

(4).Use spray: insecticide (cockroaches, mosquitoes, etc.), air cleaner, glue, hair spray, etc., but comprehensive ventilation is less than four hours

If the detector has been installed during the above-mentioned time frame, please disconnect the detection power supply and cover the detector with a plastic bag.  Wait for enough time to pass before opening the detector to avoid any false alarm phenomenon.

 

6.Use and operation

(1).Power preheating: After the detector is powered on, the yellow light is on for one second, and the green light is blinking, indicating that the detector is powered on normally, entering the preheating stage, the preheating duration of the detector is three minutes, after the end of the preheating, the green light of the detector turns on, indicating that the detector enters the normal detection working state.

 

Note: The gas sensor of the detector is not stable when it is first heated. To ensure the accuracy of the detector, it is important to preheat the gas sensor. During the preheating period, it is forbidden to test the gas of the detector, and the detector does not respond to key processing and alarm events.

 

(2).Indicator light and buzzer

Normal status: The green indicator is steady on, and the buzzer is silent.

Fault status: If the indicator is steady yellow and the buzzer beeps three times every 50 seconds, the sensor is faulty.

Fault status: If the indicator is blinking yellow, the sensor service life is up. In this case, replace the detector.

Alarm state: The red light flashes rapidly, and the buzzer buzzes rapidly.

 

(3).Self-test button

In the normal monitoring state, long press the "Self-test/Mute" button for 3 seconds, the detector enters the self-check state, the red, green, and yellow lights blink repeatedly, accompanied by the buzzer sound, and sends a wireless signal to the gateway.

 

(4). Gas detection

The detector keeps collecting, analyzing and estimating the air in the use environment. When the concentration of combustible gas in the air reaches the alarm threshold, the MCU in the detector analyzes the concentration of gas and the diffusion trend of gas. When it is confirmed that it is a real gas leakage event, the detector immediately lights up the red alarm light and starts the buzzer to send wireless signals to the gateway.

 

(5).Alarm Handling:

When the detector alarms, immediately open the window to make indoor air circulation, extinguish all fire sources, do not create fire sources, avoid switching on and off various electrical appliances, check the cause of gas leakage, and promptly ask professionals to repair.

 

(6).Silence:

In the alarm state of the detector, press the "self-test/mute reduction" button, the detector can be silencing; In the silent state, the red LED flashes without the buzzer warning, and the silent state can be maintained until the detector automatically returns to the normal monitoring state. Long press the mute button for more than three seconds to exit the mute state.

In the fault state of the detector, click the "self-test/mute" button to carry out fault noise reduction; In the silence state, the orange LED is long bright without the buzzer prompt, long press the mute button for more than three seconds to exit the silence state.

 

(7). Resetting:

In the alarm state, press the "self-test/mute" button, the detector can be manually reset.

 

(8).Record Reading:

Using the special reading device specified in the national standard, the connection cable is inserted on the motherboard (need to open the cover) on the 4P pin terminal with G\U\T\R silk screen to read all the history records currently stored by the detector