Portable Lorawan Combustible Gas Detector for Home Indoor Use

• Customization: Available
• Communication Method: Lorawan
• Display Method: Audible and Visual
• Model NO.: GDA-TW
• Warranty: 18 Months
• After-Sale Service: Online/Video/Telephone Guidence
• Installation Method: Hanging on The Wall
• Caliber: L 109mm* W 65mm* H 35mm
• Service Life: 3 Years
• Transportation Package: Carton
• Protection Level: IP65
• HS Code: 9027100090
• Production Capacity: 500 Pieces/Week
• Package Size: 55.00cm * 35.00cm * 23.00cm
• Package Gross Weight: 9.850kg

Product Description

Product Overview

The GDA-TW combustible gas detector (LoRaWAN) is a high stability combustible gas detector (hereinafter referred to as the detector), which is used to detect the leakage of combustible gas. The detector adopts advanced semiconductor gas sensor, which has stable operation, long service life and simple installation. The detector has a built-in MCU for central control processing, and each functional block is directly or indirectly connected to the I/0 port line of the MCU. The normal work of each functional module of the detector is completed through the program solidifed in the MCU, so that the detector works more stable, safe and reliable. This product is suitable for safety monitoring in places where combustible gas exists, such as family residences, real estate villas, hotels and apartments.

Our Advantages

1. High reliability sensor;
2. Automatic reset;
3. Adopt microprocessor control;
4. Automatic fault detection indication;
5. Detection of natural gas, liquefied petroleum gas, etc.;
6. Active upload/two-way transmission function:The data will be actively uploaded to the corresponding platform through the LoRaWAN network when alarm occurs. Upload normal information every 24 hours(settable). Real time response to instructions issued by the platform.
 

Product Parameters

 

Executive standards	GB15322.2-2019
Operating Voltage	AC 110~240V
Operating Current	≤ 25mA
Alarm current	≤ 35mA
Preheating time	180 sec
Alarm concentration	9%LEL
Alarm indication	Red light always on
Fault	Yellow indicator light is constantly on
Wireless Communication	LoRaWAN:CN470,RU864,IN865,EU8 68,US/AU915,KR920,AS923_ 1/2/3/4, customizable frequency band
Alarm sound pressure	>70dB/1m
Operating temperature	-10 ºC~+55 ºC (for indoor use)
Storage temperature	-15ºC~+65ºC
Ambient humidity	Maximum 95% RH  (no condensation)
Overall dimension	L109mm* W 65mm* H 35mm

 

 

Operation Introduction

 

Operating Instructions

Installation and wiring

First determine whether the gas to be detected is heavier or lighter than air. Install detectors at appropriate places according to the weight of the gas.

Gases heavier than air: liquefied petroleum gas, etc.

Gases lighter than air: natural gas, artificial gas, biogas, etc.

 • When detecting gases heavier than air: install 0.3-1.0 meters above the ground and within 1.5 meters of the radius of the gas source;
• When detecting gases lighter than air: install 0.3-1.0 meters below the ceiling and within 1.5 meters of the radius of the gas source (see the right figure for details);
• Fix the detector on the socket on the wall and hang the detector;
• When installing at home, you should also pay attention to the fact 
that the installation location should not be too close to the gas stove;
• To prevent the detector from being baked by the flame of the stove; it cannot be installed in a place with a lot of oily smoke, so as not to cause false alarms or cause the air inlet of the detector to be blocked, which will affect the sensitivity of the detector. It also cannot be installed in exhaust fans, doors and windows, and places where there is a lot of moisture in the bathroom;
• Correct wiring according to the diagram, and all wiring installations must comply with national and local effective regulations and standards. The thickness of the wire core should be appropriate, and the wires connecting the detector and other auxiliary devices should be marked with colors to avoid wrong wiring. Improper connections will result in the product not functioning properly.

 

 

Product testing

(1) Install the detector in a proper position according to "Installation and Wiring".

(2)Turn on the power supply of the detector, and the circuit enters the 3-minute warm-up self-test state.  After preheating, the green light is always on, and the detector enters the normal working state.

 

• The detector has a group of self-test buttons, which can be used to
check whether the LED lights and buzzer of the detector can work
normally. When the self-test button is pressed, the green, yellow and
red LED lights of the detector are all on, and at the same time the
buzzer emits an alarm sound of "whining".
• It is forbidden to use a lighter to directly aim at the gas convection
window of the detector for testing, otherwise it will affect or even
damage the sensor inside the detector.
• If you need to test, you can put the lighter gas into an empty plastic
spring water bottle, and then align the bottle mouth of the mineral
water bottle with the gas convection window of the detector to test.
Do not use too much gas for frequent tests, as this will reduce the
sensitivity of the gas sensor. The alarm concentration of gas is set
according to the value specified in the GB15322.2-2019 standard.
When the concentration of combustible gas in the ambient air is lower
than the alarm setting value, the detector will automatically stop the
alarm and return to the monitoring state.
• Lighting information
Preheating: PWP/FA/ALM Alternating flicker
Operating: The PWP green is always on
Alarm: The ALM red is always on
Indicator light failure: The FA yellow light is always on

Emergency Handling
When the concentration of combustible gases in the ambient air reaches or exceeds the alarm set concentration value, the detector will automatically enter a continuous alarm state. At this time, the following should be done:
• Immediately close the pipeline valve;
• Immediately open the window to circulate indoor air;
• Extinguish all sources of ignition. Avoid using anything that can generate sparks (such as turning on a lighter, striking matches, etc.);
• Avoid switching on or off various electrical appliances;
• Check the cause of gas leakage and promptly notify relevant departments and professional personnel for handling. After inspection, if the detector is false alarm, the user should check whether the installation position of the detector is appropriate.
 

Company Profile

Wuhan TimeWave IOT technology Co., Ltd is a high-tech enterprise specializing in the application of Lora Wide Area Network (LoRaWan) core technology to realize the energy supervision service platform. Providing customers with one-stop overall solutions and services for metering communication equipment, software system platforms, project construction, and daily operation and maintenance management.

Based on the "TimeWave Cloud" energy regulatory platform, covering the measurement, meter reading, charging, management and control of hydropower, gas and heat. It can realize and provide automatic meter reading and charging, carbon emission monitoring, safe electricity consumption, energy consumption analysis, energy saving analysis, distribution and transformation monitoring, power environment monitoring of machine room, intelligent operation and maintenance and other subsystems. And we also independently developed and produced "TimeWave" LPWAN smart meter, intelligent water meter and communication terminal products. We have extensive experience in the practical application of water and electricity meters using Lorawan technology.

The "TimeWave Cloud" energy supervision platform has been widely used in campus, supermarket, apartment, hospital, factory, park, building, railway, airport, computer room and data center. It has been connected to iot Terminal 15W+, Project 200+, radiating 30+ provinces and cities in China, and provides operation and maintenance support for landing projects in Indonesia, Nigeria, Mongolia, Southeast Asia and other countries and regions.

We are committed to solving the problems of difficult meter reading, difficult charging, difficult payment, energy saving and efficiency, and safe energy use for you.
 

After Sales Service

If the user complies with the transportation, storage and installation operation specifications, and the lead seal of the manufacturer is still complete.If there is a quality problem, our company is responsible for free repair or replacement within 18 months from the date of delivery the electricity meter.
 

During the whole life cycle of the products, our company implements "three guarantees" for all electricity meter products, providing necessary maintenance and services. Providing equipment wiring diagram and necessary technical documents and drawings. According to the requirements of users, provide necessary training for maintenance personnel and operators. Providing training materials, and update the software regularly and provide free upgrade.
 

After receiving the service request of the product user, our company will respond within 12 hours.