netvox R718WA User manual

Model：R718WA
Wireless Water Leak Detector
Wireless Water Leak Detector
R718WA
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..................................................................................................................2
3. Main Features .............................................................................................................3
4. Set up Instruction........................................................................................................4
5. Data Report.................................................................................................................5
6. Installation ..................................................................................................................9
7. Information about Battery Passivation.....................................................................11
8. Important Maintenance Instruction ..........................................................................12

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1. Introduction
The R718WA is a Wireless Water Leak Detector for Netvox ClassA type devices based on the
LoRaWAN open protocol and is compatible with the LoRaWAN protocol.
When the R718WA detects a leak, it will send an alarm message to the gateway. When the water
sensor detects that there is no water leak again, it will send a back to normal status message to the
gateway, which uses the SX1276 wireless communication module.
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
Indicator
Function Key
Water Leak Sensor

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3. Main Features
Apply SX1276 wireless communication module
2 section of ER14505 battery in parallel (AA SIZE 3.6V / section)
Water leak detection
IP rating: Main body IP65/IP67 (optional)
The base is attached with a magnet that can be attached to a ferromagnetic material object
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 alerts can be set via SMS text and email (optional)
Applicable to third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
Improved power management for longer battery life
Battery Life:
⁻Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
⁻At this website, users can find battery life time for variety models at different configurations.
1. Actual range may vary depending on environment.
2. Battery life is determined by sensor reporting frequency and other variables.

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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 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.
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 green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
(not at factory setting)
Turn on the device to search the previous network to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
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: green indicator flashes once and sends a report
The device is not in the network: 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.

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Low Voltage Warning
Low Voltage 3.2V
5. Data Report
Data report configuration and sending period are as following:
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 packet report along with an uplink packet including water leak
status and battery voltage.
The device sends data in the default configuration before any configuration is done.
Default setting:
MaxTime : Max Interval = 60 min = 3600s
MinTime : Min Interval = 60 min = 3600s
BatteryChange: 0x01 (0.1V)
Water leak detection:
When R718WA detects water leakage, it will immediately report a leak status as "1"
When R718WA does not detect water leakage, it will immediately report a leak status as "0"
Note:
The device report interval will be programmed based on the default firmware which may vary.
The interval between two reports must be the minimum time.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/page/index to resolve uplink data.

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Example of Report configuration
FPort：0x07
Bytes 1 1 Var(Fix =9 Bytes)
CmdID DeviceType NetvoxPayLoadData
CmdID– 1 bytes
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)
Description Device
Cmd
ID
Device
Type
NetvoxPayLoadData
ConfigRepo
rtReq
R718
WA
0x01
0x32
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s)
BatteryChange
(1byte
Unit:0.1v)
Reserved
(4Bytes,Fixed
0x00)
ConfigRepo
rtRsp
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 R718WA report parameters:
MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v
Downlink：0132003C003C0100000000 3C(Hex) =60(Dec)
Response：
8132000000000000000000 (Configuration success)
8132010000000000000000 (Configuration failure)
(2) Read Configuration:
Downlink：0232000000000000000000
Response：
8232003C003C0100000000 (Current configuration)

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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
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
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 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
3.6V
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.
1.The Wireless Water Leak Detector (R718WA)
has a built-in magnet (as Figure 1 below).
It can be attached to the surface with iron material
during installation.
To make the installation more secure, please use
screws (purchased separately) to fix the device on
the wall or other objects (as Figure 2 below).
Comment
Do not install the device in a metal shielded box
or in an environment surrounded by other
electrical equipment to avoid affecting the
wireless transmission of the device.
3. When the sensor probe detects the leak, the
device will send an "alarm" message.
After remove the probe from the accumulated
leakage and drain the remaining water from
the sensor, the device will restore
to the
"normal" state and send the "normal" status
message.
2. Remove the 3M release paper (as the red
part of the above figure) on the back of the
sensor probe and attach it to the smooth
ground that may accumulate leakage (as the
right figure).

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Note:
Please do not disassemble the device unless it is required to replace the batteries.
Do not touch the waterproof gasket, LED indicator light, function keys when replacing the batteries.
Please use suitable screwdriver to tighten the screws (if using an electric screwdriver, it is
recommended to set the torque as 4kgf) to ensure the device is impermeable.
The Wireless Water Leak Detector (R718WA) can be used in the following scenarios:
Data centers and rooms.
File storage center.
Basement leakage detection
Water pipe leakage detection
The bottom of the cabin detection
This equipment is designed to detect water leakage and is not suitable for detecting hazardous
chemical, solvent, oil, fuel, strong acid or other corrosive liquid.

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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 the batteries should be
produced within the last three months.
If encountering the situation of battery passivation, users can activate the battery to eliminate the
battery hysteresis.
*To determine whether a battery requires activation
Connect a new ER14505 battery to a 68ohm resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.
*How to activate the battery
1) Connect a battery to a 68ohm resistor in parallel
2) Keep the connection for 6~8 minutes
3) The voltage of the circuit should be ≧3.3V

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8. Important Maintenance Instruction
Kindly pay attention to the following in order to achieve the best maintenance of the product:
•Keep the device dry. Rain, moisture, or any liquid might contain minerals and thus corrode
electronic circuits. If the device gets wet, please dry it completely.
•Do not use or store the device in dusty or dirty environment. It might damage its detachable parts
and electronic components.
•Do not store the device under excessive heat condition. High temperature can shorten the life of
electronic devices, destroy batteries, and deform or melt some plastic parts.
•Do not store the device in places that are too cold. 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 clean the device with strong chemicals, detergents or strong detergents.
•Do not apply the device with paint. Smudges might block in the device and affect the operation.
•Do not throw the battery into the fire, or the battery will explode. Damaged batteries may also
explode.
All of the above applies to your device, battery and accessories. If any device is not working
properly, please take it to the nearest authorized service facility for repair.