HENRAC TECH WiFi-818 Smart Gas Leakage Detector User Manual
- June 5, 2024
- HENRAC TECH
Table of Contents
HENRAC TECH WiFi-818 Smart Gas Leakage Detector
Smart Gas Leakage Detector
- Wi-Fi Version
- Model: WiFi-818
- Version Number: V1.0
Product Description
The Wi-Fi gas leakage detector is using for the detection of fire that may happen or have happened. It adopts semi-conductor gas sensor, with high stability and sensitivity and many other functions. It is a micro-innovation on the basis of traditional gas sensor technology. Beside, it provides a new cloud system service by working with the third-party cloud platform that can not only be used for traditional fire protection system, but also a precaution of gas leakage. The detector provides live sound and light alarms, also inform alarm situation via Wi-Fi network. It is applicable for kitchens and the indoor area with potentiality of gas leakage.
Electrical Specifications
- Working Voltage: AC100-240V
- Average Consumption: <2W
- Alarm Sound: 75dB/m
- Alarm Density: 6%LEL±3%LEL(natural gas)
- Networking: WiFi2.4G — 802.11 a/b/g/n
- Control Output: Solenoid valve output(12V/100Kpa)
- Alarm Output: Relay output NC/NO optional (Default NC)
- Working Environment: -10°C ~+50°C
- Working Humidity: 10%~95% RH
Appearance Instruction
Warm Prompt
- The shell surface has a slight fever while working in normal condition.
- Please remove the detector while house decoration.
- Avoid spraying aerosol around the sensor.
- Oil adhension on the inlet and outlet may affect the sensitivity of gas detector. Clean the detector every 3 months with detergent(based on specific oil). Do not let detergent enter the internal of it. Remember to retest it after the clean.
- The semi-conductor of the detector have 5-year lifetime, please replace detector timely.
- Please do not use lighter to do the test, avoid to damage the gas sensor.
- For your safety, please use detector properly, be vigilant to prevent occurrence of danger
Functional Diagram
Before the installation, please confirm the density of the detecting gas is heavier or lighter than air. If the detecting gas is heavier than air: like LPG., etc, install 0.3-1m higher than the floor, in a 1.5m radius around the gas source. If the detecting gas is lighter than air: like natural gas, manufactured gas, marsh gas., etc, install 0.3-1m lower than the ceiling, in a 1.5m radius around the gas source.
APP Instruction
- Download “smart life”APP Search “smart life” in the application market to download and install the APP.
- Registration Click the APP and register an account according to the wizard.
- 3. Add Or Delete Devices Click the APP and log in, click Add Device –> Security Sensor –> Sensor (Wi-Fi)
Power on the detector, the buzzer “beep’ one time, circuit enter into
preheating state. The yellow LED flashes 1 time per second for 3 minutes and
enter into normal working status. Please do not test gas when the detector
is preheating. The green LED will keeps on flashing if the detector doesn’t
connect to the cloud server. Press “Test/Reset” button in the detector, and
hold on 5 seconds to enter into Wi-Fi configuration state. The green LED
flashes fast indicates that it is in the smart link configuration mode. If the
green LED flashes slowly, it indicates it is in the AP configuration mode.
There are two modes displays in the APP interface which can be switched to
each other before configuration start. As below: 
Input the Wi-Fi SSID and password according to the APP prompt to start the connection, wait about 60 seconds to complete the device’s network configuration and its connection to the Tuya cloud server, synchronization with the APP. It will jump to the APP operation and monitoring interface directly when the device add completely. You can modify the device name or share the device to other people through the APP directly. The device operation interface can see its status, alarm, offline and alarm release, etc., check history records and other setting options.
Remarks
Ensure the device and APP work under the same Wi-Fi network to make sure the validity of the device which is set through SMART LINK or AP mode, then the device information recognized by the APP is valid. When the SMART LINK mode does not work due to the Wi-Fi network condition, choose AP mode to complete the configuration.
Smart Link Mode
When configuring in SMART LINK mode, make sure that the Wi-Fi network connect
to the Internet normally, then ensure the APP and the device work in the same
Wi-Fi network. Input the SSID and password to connect the device with cloud
server to accomplish the configuration. If need to use different Wi-Fi
network, choose “Change network”through the APP.
AP mode
When configuring in AP mode, make sure that the Wi-Fi network connect to the
internet normally, then ensure the APP and the device work in the same Wi-Fi
network. Input the SSID and password, the device use to run the APP (mobile or
tablet) connect to the Wi-Fi network “SmartLife-xxxx”in the AP mode “(select
by the Wi-Fi Network list), it will return to the APP when connect
successfully and complete the configuration automatically。
When the device is added to the Tuya smart user account, the LED goes out, the APP jumps to the operation interface, indicates that the device is added successfully. If not succeed, repeat the steps until add it successfully.
Delete Device
Select the “Edit” icon to enter into the operation interface. Click “Remove
device” to delete it.
Gas Leakage Detection Alarm
When the detector detects the concentration reaches the preset gas degree, red
led flashes, solenoid output, relay output and displays different status
according to the states. The alarm data is pushed to the cloud server, the
cloud server pushes the alarm information to the APP simultaneously. The APP
interface displays as below:
Other Operations
Other operations of the device and APP, please pay attention to the design and updates of the APP and the device.
Light State &Product Test 
Test button of this
detector is used for test if the LED indicator, buzzer, relay, and solenoid
valve can work properly. Press button shortly, all the LED flashes
alternately, buzzer alarms, solenoid
and relay output. Repress the button to exit the test mode. The test lasts 30
seconds, then exit the test mode automatically. There is self test function in
the APP to accomplish the test for your choice.
Notice : The green LED will flash if not connect to the network cloud
succeed.
Wiring Instructions
- SIG- : Solenoid valve negative electrode
- SIG+: Solenoid valve positive electrode
- Out 1/Out2: Relay NC(NO)/COM
- AC power: AC100V-240V input