Milesight GS101 Residential Gas Detector User Guide

User Guide for Milesight models including: GS101, Residential Gas Detector, GS101 Residential Gas Detector, Gas Detector, Detector

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User Guide

GS101 LoRaWAN Gas Detector

Residential Gas Detector

File Info : application/pdf, 21 Pages, 1.00MB

gs101-user-guide-en

Residential Gas Detector
Featuring LoRaWAN®
GS101
User Guide

DANGER
If you hear the gas leak alarm or smell the gas even without an alarm, please keep calm and carry out the following actions, not necessarily in the order given: Extinguish all naked flames, including all smoking material; Check and ensure gas appliances are off; Open doors and windows to improve ventilation; Do NOT use a phone, light a match, or turn on or off any electrical equipment indoors; EVACUATE IMMEDIATELY and NOTIFY the gas supplier and/or 24h-service gas emergency
to test and make safe, any necessary repair carried out; Do NOT re-enter the place until told to do so by authorities.
WARNING
Please read this guide carefully before operation and retain it for future reference. This detector is not guaranteed to prevent personal injuries or property damage associated
with a gas leak. Please ensure that your gas appliances and piping systems are properly installed, used and maintained to reduce the possibility of a gas leak. This installation should strictly comply with the electrical safety regulations of the local region. The output installation with other appliances and gas valves should be conducted by a qualified service person. Do not overload the output maximum capacity so as to avoid damage to the detector. Do not modify, disassemble, strike or crush the device, this will cause the fault alarms. Do not expose the detector to corrosive gas, silicon vapor or high levels of volatile organic compounds. Keep the device away from the water to prevent damage to the detector and electric shock. Do not paint or cover the device, which may block the air inlets and interfere with the detector work. Keep the device out of children's reach. Do not place your ear directly against or in close proximity to the device when it is alarming.
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Declaration of Conformity
GS101 is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.

Copyright © 2011-2022 Milesight. All rights reserved. All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.
For assistance, please contact Milesight technical support: Email: iot.support@milesight.com Tel: 86-592-5085280 Fax: 86-592-5023065 Address: Building C09, Software Park III,
Xiamen 361024, China

Revision History

Date

Doc Version

Aug.2, 2022

V 1.0

Description Initial version

Contents
1. Product Introduction ......................................................................................................................... 5 1.1 Overview ...................................................................................................................................5 1.2 Features ................................................................................................................................... 5
2. Hardware Introduction ...................................................................................................................... 5 2.1 Packing List ..............................................................................................................................5 2.2 Hardware Overview ................................................................................................................. 6 2.3 Wiring ........................................................................................................................................6 2.4 LED and Button Patterns .........................................................................................................7 2.5 Dimensions .............................................................................................................................. 8
3. Operation Guide .................................................................................................................................8 3.1 Basic Configuration .................................................................................................................8 3.2 LoRaWAN Settings .................................................................................................................. 9 3.3 Basic Settings ........................................................................................................................ 12 3.4 Historial Record Storage .......................................................................................................13 3.5 Maintenance .......................................................................................................................... 14 3.5.1 Upgrade ....................................................................................................................... 14 3.5.2 Backup .........................................................................................................................14 3.5.3 Reboot and Reset ....................................................................................................... 15
4. Installation ....................................................................................................................................... 16 5. Maintenance .................................................................................................................................... 18 6. Device Payload ................................................................................................................................ 18
6.1 Basic Information .................................................................................................................. 18 6.2 Sensor Data ........................................................................................................................... 19 6.3 Downlink Commands ............................................................................................................ 20
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1. Product Introduction
1.1 Overview
GS101 is a LoRaWAN® residential gas detector to detect the natural gas leak and send alarms. When the concentration caused by gas leak reaches the preset threshold, the detector will trigger LED light alarm and buzzer sound alarm, it also supports controlling outputs to close the gas valve and open the vent fans to prevent potential accidents. Apart from local alarms, GS101 can also report the normal status of the device and alarm messages remotely by the use of LoRaWAN® technology. Integrating with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can monitor all the sensor data and control the device remotely and visually.
1.2 Features
Built-in semiconductor gas detection sensor with 5-year-long working life High sensitivity gas leak detection and support 8% LEL alarm threshold Equipped with buzzer and light indicators to indicate the device powered, faulty, alarmed
and invalid status Equipped with a test button to test the device's normal or abnormal status Equipped with relay outputs for external appliances such gas valves and vent fans, reducing
potential accidents Store 800 historical records locally in 7 types Easy configuration via NFC Milesight IoT Cloud compliant
2. Hardware Introduction 2.1 Packing List

1 × Residential Gas Detector

1× Power Adapter

2× Wall Mounting Kits

1× Warranty Card

1× Quick Guide

If any of the above items is missing or damaged, please contact your sales Representative.
2.2 Hardware Overview
Note: The historical record interface is only for professional use. Users can use Milesight ToolBox App to read the historical records.
2.3 Wiring
Wiring Diagram
The relay output can connect the device up to 250VAC/10A, and the solenoid valve output is a 12V/100ms pulse output. When the alarm is triggered, the relay output will open the fan and solenoid valve output will send a pulse to close the valve; when the alarm is dismissed, the relay output will close the fan, and the valve status will not change. You can open the solenoid valve manually or via send downlink commands.
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Wiring Step
Insert a flathead screwdriver into the square holes and insert the wire into the circle holes, then release the screwdriver and ensure the cable is locked.

Note: power off all devices when wiring, do not touch the bare wires after the device is powered on.

2.4 LED and Button Patterns

Status/Function

LED

Warm-up Time (about 180s)

All Blinks

Work Properly Abnormal Working/ Collection/Output Threshold Alarm: 8% LEL
End of Working Life Test: Press the button (3s) when device is working properly

Steady Power Light On, While Other Lights Off
Steady Fault Light On, While Other Lights Off
Steady Alarm Light On, While Other Lights Off
Invalid Light Blinks, While Others Off
All Lights Blink until the Test Complete

Buzzer Beeping twice when the
warm-up complete /
Beep Once Every 0.5s
Keep Beeping
Beep Once Every 0.5s
Beep 1s

Mute: Press the button (3s) when device is in alarm status Reboot: Hold on the button for
3s to 10s Reset to Factory Default: Hold on the button for more than 10s

Steady Alarm Light On, While Other Lights Off
All Lights Blink Slowly
All Lights Blink Quickly

Stop Beeping for 1 Minute /
/

2.5 Dimensions(mm)

3. Operation Guide 3.1 Basic Configuration
1. Connect the outputs to the solenoid valve, fan or other devices. 2. Power on the detector via default power adapter and wait for about 180s for the warm-up process. When the warm-up finishes, the buzzer will beep twice and all indicators will stop blinking except for the Power indicator. 3. Press the Test button to check if the LED indicators and buzzer work properly, if the relay output can open the fan and valve output can close the gas valve. After testing, everything will recover back to normal status except the gas valve, please turn on the valve manually. 4. Download and install "Milesight ToolBox" App from Google Play or Apple App Store. 5. Enable NFC on the smartphone and launch Milesight ToolBox. 6. Attach the smartphone with the NFC area to the device to read device information. Basic information and settings of the device will be shown on ToolBox App if it's recognized successfully. You can read and configure the device by tapping the Read/Write device on the App. To order to protect the security of the device, please change the password when first configuration. The default password is 123456.
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Note: 1) After the warm-up, if the device is powered off for a short time, it will not warm up again. 2) If the device detects the threshold reaches during the warm-up, it will stop warming up and send alarms. 3) Ensure the location of smartphone NFC area and it's recommended to take off phone case. 4) If the smartphone fails to read/write configurations via NFC, keep the phone away and back to try again. 5) GS101 can also be configured by a dedicated NFC reader, which can be purchased from Milesight IoT.
3.2 LoRaWAN Settings
LoRaWAN settings are used for configuring the transmission parameters in LoRaWAN® network.
Basic LoRaWAN Settings:
Go to "LoRaWAN Settings" to configure join type, App EUI, App Key and other information. You can also keep all settings by default.
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Parameters

Description

Device EUI

Unique ID of the device which can also be found on the label.

App EUI

Default App EUI is 24E124C0002A0001.

Application Port The port is used for sending and receiving data, the default port is 85.

Join Type

OTAA and ABP mode are available.

LoRaWAN Version V1.0.2, V1.0.3, V1.1 are available.

Work Mode

It's fixed as Class C.

Application Key Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.

Device Address DevAddr for ABP mode, default is the 5th to 12th digits of SN.

Network Session Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Key

Application Session Key

Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.

RX2 Data Rate RX2 data rate to receive downlinks.

RX2 Frequency/MHz

RX2 frequency to receive downlinks.

Spread Factor If ADR is disabled, the device will send data via this spread factor.

If the device does not receive ACK packet from the network server, it will

resend data once. Confirmed Mode
Note: alarm packets and alarm dismissed packets are fixed as confirmed

packets.

Rejoin Mode Reporting interval 30 mins: the device will send a specific number of

LinkCheckReq MAC packets to the network server every 30 mins to validate

connectivity; If there is no response, the device will re-join the network.

Reporting interval > 30 mins: the device will send a specific number of

LinkCheckReq MAC packets to the network server every reporting interval to

validate connectivity; If there is no response, the device will re-join the

network.

Set the number of When rejoin mode is enabled, set the number of LinkCheckReq packets sent.
packets sent

ADR Mode

Allow the network server to adjust datarate of the device.

Tx Power

Transmit power of the device.

Note:

1) Please contact sales for device EUI list if there are many units.

2) Please contact sales if you need random App keys before purchase.

3) Select OTAA mode if you use Milesight IoT cloud to manage devices.

4) Only OTAA mode supports rejoin mode.

LoRaWAN Frequency Settings:
Go to "Settings -> LoRaWAN Settings" of ToolBox App to select supported frequency and select channels to send uplinks. Make sure the channels match the LoRaWAN® gateway.

If frequency is one of CN470/AU915/US915, you can enter the index of the channel that you want to enable in the input box, making them separated by commas. Examples: 1, 40: Enabling Channel 1 and Channel 40 1-40: Enabling Channel 1 to Channel 40
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1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60 All: Enabling all channels Null: Indicates that all channels are disabled

Note: For -868M model, the default frequency is EU868; For -915M model, the default frequency is AU915.
3.3 Basic Settings
Go to "Device -> Settings -> General Settings" of ToolBox App to change the reporting interval, etc.

Parameters Reporting Interval Change Password

Description Reporting interval of transmitting current sensor values to the network server. Default: 20 mins, Range: 1-1080 mins Change the password for ToolBox App or software to read/write this device.

3.4 Historial Record Storage

GS101 supports storing more than 800 historical records locally in 7 types and these records will

not be cleared even reset to factory default. When storing records reach the max capacity, the

device will cover the oldest records according to record types. Record type, description and

maximum amount are listed in the chart below:

Record Type

Record Description

Items

The device detects the 8% LEL and triggers the

Device Alarm

200

alarm.

Device Alarm

Recover from alarm status.

200

Dismissed

Abnormal working/collection/outputs or sensor

Device Fault

100

detached.

Device Fault Recovered Recover from device fault status.

100

Device Power On The device is powered on.

Device Power Off The device is powered off.

Device Invalid

The working life of the device is reached.

You can go to "Device -> Maintenance" of the ToolBox App and click "Export" to check records

and save the records as a csv file. After saving, you can click "Export Record" to check the

historical export records.

3.5 Maintenance
3.5.1 Upgrade
1. Download firmware from www.milesight-iot.com to your smartphone. 2. Open ToolBox App and click "Browse" to import firmware and upgrade the device. Note: 1) Operation on ToolBox is not supported during the upgrade. 2) Only Android version ToolBox supports the upgrade feature.
3.5.2 Backup
GS101 supports configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band. 1. Go to "Template" page on the App and save current settings as a template. You can also edit the template file. 2. Select one template file that is saved in the smartphone and click "Write", then attach it to another device to write the configuration.
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Note: Slide the template item to the left to edit or delete it. Click the template to edit the configurations.
3.5.3 Reboot and Reset
Please select one of the following methods to reset or reboot the device: Via Hardware: Hold on the button on the front panel for 3 to 10s to reboot, and more than 10s to reset. Via ToolBox App: Go to "Device -> Maintenance" to click "Reset" or "Reboot", then attach smartphone with the NFC area to the device.
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4. Installation Recommended Installation Locations
The residential gas detector is designed to be installed in every room where gas leak may occur, such as the kitchen. The installation location should meet these requirements: within the range of the LoRaWAN® gateway; close to the ceiling and be high than any door or window; keep away from the gas supply between 1.5m to 4m; keep away from the ceiling between 10cm to 30cm.
Locations to Avoid
Behind metal objects and obstacles; The place with lots of electromagnetic interferences;
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The place where strong vibration may happen or easy to be subject to physical shock; On the top of cook appliances or sink or way of smoke; Enclose space or the place where curtains, furniture or other objects block the flow of air to
the detector; Dusty or dirty environments may block the air inlets; Damp or very humid location which except operating humidity (0 to 95%), such as
bathroom; Next to a door or window or any air ventilation openings like ventilation fan, vents, etc. In any outside place; In an area except for the operating temperature (-10°C to 55°C) or large temperature
difference; The places spraying alcohol, perfume, fresheners, hair spray, gasoline, paint and other
aerosols.
Installation Steps
1. Take off the mounting bracket on the back of the device, drill 2 holes on the wall according to the wall mounting bracket, and then fix the wall plugs into the wall. 2. Fix the mounting bracket to the wall plugs with screws, and note the bracket should not be installed upside down. 3. Hang the device to the bracket.
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5. Maintenance

The working life of the detector is 5 years from power on, replace the device if you observe

Invalid indicator blinks. The newly decorated or re-decorated room should be ventilated for some time before
installing the detector. It's suggested to press the Test button to check the LED indicators, buzzer and outputs
every month; besides, check if the device is online and send periodic status on the IoT

platform. To ensure the air inlets are not blocked, wipe the device with a clean dry cloth, do not use a

very wet cloth, alcohol, harsh chemicals or detergents which may damage the detector. Do not use a lighter or other gas to test the detector, which may damage the detector. There is possible accuracy drift if you store without power for a long time in different
devices. If you prefer a more consistent reading with better precision, you can keep the device powered on in clear air for some time according to the below list.

Storage Time (Power Off)

Operating Time

Less than 1 month

At least 2 days

1~6 months

At least 3 days

More than 6 months

At least 7 days

6. Device Payload

All data are based on following format (HEX), the Data field should follow little-endian:

Channel1 Type1 Data1 Channel2 Type2 Data2 Channel 3 ...

1 Byte 1 Byte N Bytes 1 Byte 1 Byte M Bytes 1 Byte

...

For decoder examples please find files on https://github.com/Milesight-IoT/SensorDecoders.

6.1 Basic Information
GS101 reports basic information of the device whenever joining the network.

Channel

Type

01(Protocol Version)

09 (Hardware Version)

0a (Software Version)

0b (Power On)

16 (Device SN)

Description 01=>V1 01 40 => V1.4 01 14 => V1.14 Device is on 16 digits

Example:

ff0bff ff0101 ff166747c21194300001 ff090100 ff0a0101

Channel ff ff ff ff ff

Type 0b (Power On) 01 (Protocol version) 16 (Device SN) 09 (Hardware Version) 0a (Software Version)

Value ff: device is powered on
01 (V1) 6747c21194300001
0100: V1.0 0101: V1.1

6.2 Sensor Data
GS101 device will report the below packages: 1. Periodic package: reports Methane status, valve status and relay output status according to reporting interval (20 mins by default); 2. Alarm or alarm dismissed package: reports Methane status, valve status and relayoutput status when Methane status changes; 3. Device power off or fault package: reports when the corresponding event happens; 4. Device will be invalid soon: report alarm and remaining lifetime once per day, the device will send this alarm one month in advance; 5. Device invalid: report alarm once every hour. Note: when warming up, the device will not upload data except if it detects the threshold reaches.

Item Methane Status

Channel 05

Valve Status

Relay Output Status

Remaining Lifetime

Alarm Report

Type 8e 01 01 90
3f

Description
00-normal
01-alarm
00-off 01-on 00-off 01-on
4 Bytes, unit: s
00-device power off 01-device power on 02-device fault 03-device fault recovered 04-device will be invalid soon 05-device invalid

Example: 1. Periodic Package

Channel

058e00 060101 070100 Type

Value

8e (Methane Alarm)

00: normal

01: valve on

00: relay output off

2. Device is powered off
Channel ff

ff3f00 Type
3f (Alarm Report)

Value 00: device is powered off

6.3 Downlink Commands
GS101 supports downlink commands to configure the device. The application port is 85 by default.

Item Control Valve

Channel 06

Control Relay Output

Enquire Working 08
Lifetime

Set Reporting Interval

Reboot Device

Set time zone

Enquire Device Status

Mute the Buzzer

Type / /

Description 0000ff-close 0001ff-open 0000ff-close 0001ff-open

0000ff

2 Bytes, unit: s

2 Bytes, desired UTC time zone * 10

2 Bytes, unit: s

Example: 1. Turn the valve on.

Channel 06

Type -

060001ff Command
0001ff=>Turn the valve on

2. Set reporting interval as 20 minutes.

Channel

Type

ff03b004

Value

03 (Set Reporting Interval)

b0 04 => 04 b0 = 1200s = 20 minutes

3. Set time zone to GMT-4 for time display on ToolBox App.

ff17d8ff

Channel ff

Type 17 (Set Time Zone)

Value d8 ff => ffd8 = -40 = -4 * 10

4. Mute the Buzzer for 1 minute

Channel ff

ff613c00 Type 61 (Mute the Buzzer)

Value 3c 00 => 00 3c = 60 seconds

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References

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