netvox R718WB2 User manual

Wireless 2-Gang Water Leak Detector with Rope Sensor
Model: R718WB2
Wireless 2-Gang Water Leak
Detector with Rope Sensor
R718WB2
User Manual
Copyright©Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained
in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX
Technology. The specifications are subject to change without prior notice.

1
Table of Content
1. Introduction .............................................................................................................................................................2
2. Appearance ..............................................................................................................................................................3
3. Main Features..........................................................................................................................................................3
4.Set up Instruction .....................................................................................................................................................4
5. Data Report .............................................................................................................................................................5
5.1 Example of ReportDataCmd............................................................................................................................5
5.2 Example of ConfigureCmd..............................................................................................................................6
5.3 Example for MinTime/MaxTime logic............................................................................................................7
6. Installation...............................................................................................................................................................9
7. Information about Battery Passivation .................................................................................................................11
7.1 To determine whether a battery requires activation ......................................................................................11
7.2 How to activate the battery ............................................................................................................................11
8. Important Maintenance Instruction.......................................................................................................................12

2
1. Introduction
R718WB2 is a LoRaWAN device compatible with LoRaWAN protocol (ClassA). When the R718WB2 water rope sensor detects
a leak, it will send an alarm message to the gateway. When the water rope sensor detects no leaks, it will send a message that
shows no leak to the gateway.
LoRa Wireless Technology:
LoRa is a wireless communication technology famous for its long-distance transmission and low power consumption. Compared
with other communication methods, LoRa spread spectrum modulation technique greatly extend the communication distance. It
can be widely used in any use case that requires long-distance and low-data wireless communications. For example, automatic
meter reading, building automation equipment, wireless security systems, industrial monitoring. It has features like small size,
low power consumption, long transmission distance, strong anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and
gateways from different manufacturers.

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2. Appearance
3. Main Features
⚫Adopt SX1276 wireless communication module
⚫2 ER14505 battery AA size (3.6V / section) parallel power supply
⚫Water leakage status detection
⚫The base is attached with a magnet that can be attached to a ferrous object
⚫Protection class: Main body-IP65/IP67 (optional), Sensor-IP67
⚫Compatible with LoRaWANTM Class A
⚫Frequency hopping spread spectrum
⚫Configuration parameters can be configured via a third-party software platform, data can be read and alarms can be set via SMS
text and email (optional)
⚫Applicable to third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
⚫Low power consumption and long battery life
Note:
Battery life is determined by the sensor reporting frequency and other variables, please refer to
http://www.netvox.com.tw/electric/electric_calc.html
On this website, users can find battery life of various models in different configurations.
Indicator
Function Key
Water Leak Sensor 2
Water Leak Sensor 1

4
4.Set up Instruction
On/Off
Power on
Insert batteries. (Users may need a screwdriver to open)
Turn on
Press and hold the function key for 3 seconds till the green indicator flashes once.
Turn off (Restore to factory setting)
Press and hold the function key for 5 seconds till the green indicator flashes for 20 times.
Power off
Remove Batteries.
Note:
1. Remove and insert the battery; the device is at off state by default. Press and hold the
function key for 3 seconds till the green indicator flashes once to turn on the device.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
3. At 1st -5th second after power on, the device will be in engineering test mode.
Network Joining
Never joined the network
Turn on the device to search the network to join the network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
(not at factory setting mode)
Turn on the device to search the previous network to join the network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Fail to join the network
(when the device is on)
Suggest to check the device verification information on the gateway or consult your platform
server provider.
Function Key
Press and hold for 5 seconds
Restore to factory setting / Turn off
The green indicator flashes for 20 times: success
The green indicator remains off: fail
Press once
The device is in the network: the green indicator flashes once and sends a report
The device is not in the network: the green indicator remains off
Sleeping Mode
The device is on and in the
network
Sleeping period: Min Interval.
When the reportchange exceeds setting value or the state changes: send a data report
according to Min Interval.
Low Voltage Warning
Low Voltage
3.2V

5
5. Data Report
Data report configuration and sending period are as following:
5.1 Example of ReportDataCmd
FPort：0x06
Bytes
1
1
1
Var(Fix=8 Bytes)
Version
DeviceType
ReportType
NetvoxPayLoadData
Version–1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType–1 byte –Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
Min Interval
(Unit:second)
Max Interval
(Unit:second)
Reportable Change
Current Change≥
Reportable Change
Current Change＜
Reportable Change
Any number between
1~65535
Any number between
1~65535
Can not be 0.
Report
per Min Interval
Report
per Max Interval
The device will immediately send a version package report and a report data with leak detection status and voltage value.
The device sends data in the default configuration before any configuration is done.
Default report time:
MaxTime: 0x0E10 (3600s)
MinTime: 0x0E10 (3600s)
Battery Change = 0x01 (0.1v)
R718WB2 sensor is triggered:
When the R718WB2 status changes, it will send warning report.
No water leak:0
Water leak:1
The reported data is decoded by the Netvox LoRaWAN Application Command document and
http://cmddoc.netvoxcloud.com/cmddoc

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Device
Device
Type
Report
Type
NetvoxPayLoadData
R718WB2
0x47
0x01
Battery
(1Byte)
unit:0.1V
WaterLeak 1
(1Byte)
0:noLeak 1:Leak
WaterLeak 2
(1Byte)
0:noLeak 1:Leak
Reserved
(5Bytes)
fixed 0x00
Example of Uplink: 0147012401000000000000
1st byte (01): Version
2nd byte (47): DeviceType 0x47 － R718WB2
3rd byte (01): ReportType
4th byte (24): Battery－3.6v , 24Hex=36 Dec 36*0.1v=3.6v
5th byte (01): Water Leak1－Leak
6th byte (00): Water Leak1－No leak
7th ~11th byte (0000000000): Reserved
5.2 Example of ConfigureCmd
FPort：0x07
Bytes
1
1
Var (Fix =9 Bytes)
CmdID
DeviceType
NetvoxPayLoadData
CmdID–1 byte
DeviceType–1 byte –Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)
Description
Device
Cmd
ID
Device
Type
NetvoxPayLoadData
Config
ReportReq
R718WB2
0x01
0x47
MinTime
(2bytes Unit:s)
MaxTime
(2bytes Unit:s)
BatteryChange
(1byte Unit:0.1v)
Reserved
(4Bytes,Fixed 0x00)
Config
ReportRsp
0x81
Status
(0x00_success)
Reserved
(8Bytes,Fixed 0x00)
ReadConfig
ReportReq
0x02
Reserved
(9Bytes,Fixed 0x00)
ReadConfig
ReportRsp
0x82
MinTime
(2bytes Unit:s)
MaxTime
(2bytes Unit:s)
BatteryChange
(1byte Unit:0.1v)
Reserved
(4Bytes,Fixed 0x00)
(1) Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v
Downlink: 0147003C003C0100000000
The device returns:

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8147000000000000000000 (configuration is successful)
8147010000000000000000 (configuration is failed)
(2) Read device configuration parameters
Downlink: 0247000000000000000000
The device returns:
8247003C003C0100000000 (device current configuration parameter)
5.3 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
Sleeping(MinTime) Sleeping(MinTime)
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange
value.
Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
Sleeping(MinTime) sleeping sleeping sleeping
0H 15th M 30th M 45th M 1H 2H
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
REPORTS 3.6V
Wakes up and
collects data
REPORT 3.6V

8
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
Notes:
1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not
collect data.
2) The data collected is compared with the last data reported. If the data variation is greater than the ReportableChange
value, the device reports according to MinTime interval. If the data variation is not greater than the last data reported, the
device reports according to MaxTime interval.
3) We do not recommend to set the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes up
frequently and the battery will be drained soon.
4) Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another
cycle of MinTime/MaxTime calculation is started.
Wakes up and
collects data
REPORTS 3.6V
Wakes up and collects data
3.5V |3.5-3.6|=0.1
REPORTS 3.5V
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data 3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
REPORTS 3.5V
Wakes up and
collects data
3.6V
Does not report
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.

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6. Installation
This product comes with waterproof function. When using it, the back of it can be adsorbed on the iron surface, or the two ends
can be fixed to the wall with screws.
Note: When installing the battery, use a screwdriver or similar tool to assist in opening the battery cover.
Waterline Structure:
Leakage Rope Length: Up to 300m*
Water contacting alarm: At least 3 cm line length
Alert: Instant report (within 10 seconds)
Installation Suggestions and Examples
fixed by cable clips fixed by vertical hoisting along pipe
(recommend) (recommend)(recommend)

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binding with mental fixed by glue in front of air-conditioning outlet
(susceptible to interference) (susceptible to damage cable) (damp to false alarm )
R718WB2
Time: Instant (Within 10 seconds)
cable clip
>3cm
>3cm
Soaking water >3cm, Send a Report
Detection Wire
Water
Soaking depth >2mm
Double Helix

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7. Information about Battery Passivation
Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many
advantages including low self-discharge rate and high energy density.
However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium
anode and thionyl chloride if they are in storage for a long time or if the storage temperature is too high. This lithium chloride
layer prevents rapid self-discharge caused by continuous reaction between lithium and thionyl chloride, but battery passivation
may also lead to voltage delay when the batteries are put into operation, and our devices may not work correctly in this situation.
As a result, please make sure to source batteries from reliable vendors, and it is suggested that if the storage period is more
than one month from the date of battery production, all the batteries should be activated.
If encountering the situation of battery passivation, users can activate the battery to eliminate the battery hysteresis.
ER14505 Battery Passivation:
7.1 To determine whether a battery requires activation
Connect a new ER14505 battery to a resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.
7.2 How to activate the battery
a. Connect a battery to a resistor in parallel
b. Keep the connection for 5~8 minutes
c. The voltage of the circuit should be ≧3.3, indicating successful activation.
Brand
Load Resistance
Activation Time
Activation Current
NHTONE
165 Ω
5 minutes
20mA
RAMWAY
67 Ω
8 minutes
50mA
EVE
67 Ω
8 minutes
50mA
SAFT
67 Ω
8 minutes
50mA
Note:
If you buy batteries from other than the above four manufacturers, then the battery activation time, activation current, and
required load resistance shall be mainly subject to the announcement of each manufacturer.

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8. Important Maintenance Instruction
Your device is a product of superior design and craftsmanship and should be used with care. The following suggestions will help
you use the warranty service effectively.
• Keep the equipment dry. Rain, moisture, and various liquids or moisture may contain minerals that can corrode electronic circuits.
In case the device is wet, please dry it completely.
• Do not use or store in dusty or dirty areas. This can damage its detachable parts and electronic components.
• Do not store in excessive heat. High temperatures can shorten the life of electronic devices, destroy batteries, and deform or melt
some plastic parts.
• Do not store in a cold place. Otherwise, when the temperature rises to normal temperature, moisture will form inside, which will
destroy the board.
• Do not throw, knock or shake the device. Rough handling of equipment can destroy internal circuit boards and delicate structures.
• Do not wash with strong chemicals, detergents or strong detergents.
• Do not apply with paint. Smudges can block debris in detachable parts and affect normal operation.
• Do not throw the battery into a fire to prevent the battery from exploding. Damaged batteries may also explode.
All of the above suggestions apply equally to your device, battery and accessories.
If any device is not working properly, please take it to the nearest authorized service facility for repair.