Netvox R718WA Manuale utente

Model：R718WA

Wireless Water Leak Detector

R718WA

User Manual

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.

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

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

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.

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.

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.

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

Device

Type

NetvoxPayLoadData

ConfigRepo

rtReq

R718

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)

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

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

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.

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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