netvox R718WB2 User manual

Wireless 2-Gang Water Leak Detector with Rope Sensor
R718WB2
Wireless 2-Gang Water Leak Detector with Rope Sensor
R718WB2 User Manual

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Table of Content
1. Introduction.............................................................................................................................................................2
2. Appearance..............................................................................................................................................................2
3. Main Features..........................................................................................................................................................3
4. Set up Instruction ....................................................................................................................................................3
5. Data Report .............................................................................................................................................................5
6. Installation...............................................................................................................................................................8
7. Information about Battery Passivation .................................................................................................................10
7.1 To determine whether a battery requires activation ......................................................................................10
7.2 How to activate the battery............................................................................................................................10
8. Important Maintenance Instruction.......................................................................................................................11

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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 dedicated to long distance and low power consumption. Compared with other
communication methods, LoRa spread spectrum modulation method greatly increases to expand the communication distance.
Widely used in long-distance, low-data wireless communications. For example, automatic meter reading, building automation
equipment, wireless security systems, industrial monitoring. Main features include small size, low power consumption,
transmission distance, 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.
2. Appearance

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3. Main Features
⚫Adopt SX1276 wireless communication module
⚫2 ER14505 battery AA SIZE (3.6V / section) parallel power supply
⚫Can detect two voltage values and two water leakage status
⚫The base is attached with a magnet that can be attached to a ferrous object
⚫Protection class IP65/IP67 (optional)
⚫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.
4.Set up Instruction
On/Off
Power on
Insert batteries.
(users may need a flat blade 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

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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)
First two mins: wake up every 15 seconds to send request.
After two mins: enter sleeping mode and wake up every 15 minutes to send request.
Note: Suggest to remove batteries if the device is not used to save power.
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.
The device is on but not in
the network
First two mins: wake up every 15 seconds to send request.
After two mins: enter sleeping mode and wake up every 15 minutes to send request.
Note: Suggest to remove batteries if the device is not used.
Suggest to check device verification on gateway.
Low Voltage Warning
Low Voltage
3.2V

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5. Data Report
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.
Maximum time: Max Interval
Minimum time: Min Interval (by default, the current voltage value and the leak detection status value are detected every Min
Interval)
Default reportchange: batteryvoltagechange ---- 0x01(0.1V)
Note:
The actual data sending cycle will be programmed before shipment.
The interval between two reports must be the minimum time
R718WB default Max Interval = 60min, Min Interval = 60min
(if there is special custom shipment, the setting is changed according to customer requirements)
While the water leak detection is triggered:
The leak detected a change in state and immediately issued a report. No leaks status: 0, leak status: 1.
The data report can be decoded by the Netvox LoraWAN Application Command document
and http://www.netvox.com.cn:8888/page/index
Data report configuration and sending period are as following:
Report Configuration
ConfigReportReq
R718W
B
0x01
0x47
MinTime(2b
ytes Unit:s)
MaxTime(2by
tes Unit:s)
BatteryChange(1by
te Unit:0.1v)
Reserved (4Bytes,Fixed
0x00)
ConfigReportRsp
0x81
Status(0x00_
success)
Reserved (8Bytes,Fixed 0x00)
ReadConfigReportReq
0x02
Reserved (9Bytes,Fixed 0x00)
ReadConfigReportRsp
0x82
MinTime(2b
ytes Unit:s)
MaxTime(2by
tes Unit:s)
BatteryChange(1by
te Unit:0.1v)
Reserved (4Bytes,Fixed
0x00)
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

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(1) Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v
Downlink: 0147003C003C0100000000
The device returns:
8147000000000000000000 (configuration is successful)
8147010000000000000000 (configuration is failed)
(2) Read device configuration parameters
Downlink: 0247000000000000000000
The device returns:
8247003C003C0100000000 (device current configuration parameter)
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

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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:
Installation Suggestions and Examples
Water line: up to 300m*
Water contact alarm: recommended at least
3cm line length
Alert: Instant report (within 10 seconds)
**The length of the accessory water measuring line has been set at the factory. If the water measuring line setting is manual, users
need to set the water line length in the host before using it.**

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R718WB
Time : real-time(Within 10 seconds)
Fixing Hook
>3cm
>3cm
Soaking water >3CM,Send a Report
detection line
Water
Soaking depth >2mm

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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.