Netvox R311W Manuale utente

Model：R311W

Wireless 2-Gang Water Leak Detector

R311W

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..............................................................................................................................................................3

3. Main Features..........................................................................................................................................................3

4. Set up Instruction ....................................................................................................................................................4

5. Data Report .............................................................................................................................................................5

6. Installation...............................................................................................................................................................9

7. Important Maintenance Instruction.......................................................................................................................10

1. Introduction

Wireless 2-Gang Water Leak Detector (R311W) is a LoRaWAN device compatible with LoRaWAN protocol (ClassA). When the

R311W sensor detects a leak, it will send an alarm message to the gateway. When the 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.

2. Appearance

3. Main Features

Compatible with LoRaWAN

2 sections of 3V CR2450 button battery power supply

Detectable voltage and water leak status

Simple operation and setting

Compatible with LoRaWANTM Class A

Frequency hopping spread spectrum technology

Configuration parameters can be configured through third-party software platforms, data can be read and alarms can be set via

SMS text and email (optional)

Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne

Low power consumption and long battery life

Indicator

Water Leak Sensor

Function Key

4.Set up Instruction

On/Off

Power on Insert batteries. (users may need a screwdriver to open);

Insert two sections of 3V CR2450 button batteries and close the battery cover.)

Turn on Press any function key till green and red indicator flashes once.

Turn off (Restore to factory setting) Press and hold both function keys for 5 seconds till green indicator flashes for 20 times.

Power off Remove Batteries.

Note:

1. Remove and insert the battery; the device memorizes previous on/off state by default.

On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor

inductance and other energy storage components.

3. Press any function key and insert batteries at the same time; it will enter engineer testing

mode.

Network Joining

Never joined the network

Turn on the device to search the network.

The green indicator stays on for 5 seconds: success

The green indicator remains off: fail

Had joined the network

Turn on the device to search the previous 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 with 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: 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

2.4V

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 battery voltage, leak status

The device sends data in the default configuration before any configuration is done.

Default setting:

Maximum time: 3600s

Minimum time: 3600s

Battery: 0x01 (0.1V)

R311W sensor is triggered:

When the R311W status changes, it will send warning report.

No water leak:0

Water leak:1

Note:

The reported data is decoded by the Netvox LoRaWAN Application Command document and

http://loraresolver.netvoxcloud.com:8888/page/index

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)

（1）Configure R311W device parameters:

MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v

Downlink：0106003C003C0100000000 003C(Hex) = 60(Dec)

Device returns：

8106000000000000000000（Configuration success）

8106010000000000000000（Configuration failed）

（2）Read R311W device parameters:

Downlink：0206000000000000000000

Device returns：

8206003C003C0100000000（Current configuration）

Description Device Cmd

Device

Type NetvoxPayLoadData

Config

ReportReq

R311W

0x01

0x06

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)

Example for MinTime/MaxTime logic

Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V

Max Time Max Time

Sleeping (Min Time) Sleeping (Min Time)

1H 2H 3H

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

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:

Wakes up and

collects data

2.8V

Does not report

Wakes up and

collects data

REPORTS 2.8V

Wakes up and

collects data

REPORT 2.8V

Wakes up and

collects data

REPORTS

2.8V

Wakes up and

collects data

2.7V |2.7-2.8|=0.1

REPORTS 2.7V

Wakes up and

collects data

2.7V

Does not report

Wakes up and

collects data

2.7V

Does not report

Wakes up and

collects data

2.7V

Does not report

Wakes up and

collects data 2.7V

Does not report

Wakes up and

collects data

2.7V

Does not report

Wakes up and

collects data

REPORTS

2.7V

Wake up and

collects data

REPORTS 2.8V

Wakes up and

collects data

REPORTS 2.8V

Wakes up and

collects data

REPORTS 2.8V

Wakes up and

collects data

2.8V

Does not report

Users push the button,

REPORTS 2.7V.

Recalculate MaxTime.

Wakes up and

collects data

2.8V

Does not report

Wakes up and

collects data

2.8V

Does not report

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 change value 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.

6. Installation

This product does not have a waterproof function.After the screening is completed, please place it indoors.

1. Remove the 3M glue on the back of the magnet body

and attach the body to the door frame (please do not stick

it on the rough door to avoid falling off after using the

device for a long time).

Note:

Wipe the door clean before installation to avoid dust

on the door and affect the adhesion of the device.

Do not install the device in a metal shielded box or

other electrical equipment around it to avoid affecting

the wireless transmission of the device.

2. Remove the 3M glue from the bottom of the sensor

probe and attach it to a flat ground position where it may

accumulate water leaks. As shown in the enlarged view

on the right.

The figure shows that the water immersion sensor (R311W) is

used in bathing rooms where there is a possibility of water

leakage in the pipeline.

It can also be applied to the following scenarios:

Data center and computer room

Document storage center

Basement leak monitoring

Water pipe leak detection

Bilge monitoring

The device is designed to detect water leaks and is not suitable

for detecting hazardous chemicals, solvents, oils, fuels, strong

acids or other corrosive liquids.

3.When the sensor probe detects a leak, the flood sensor

device will send an "alarm" message.

Remove the probe from the accumulated leak location;

dry the remaining water inside the sensor. The device is

back to a "normal" state, and send a "normal" status

message.

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