netvox RA07W User manual

Model：RA07W
Wireless Water Leak Detection and Location Sensor
Wireless Water Leak Detection
and Location Sensor
RA07W
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 Feature............................................................................................... 3
4.Application................................................................................................. 3
5.Set Up Instruction....................................................................................... 4
6.Data Report................................................................................................. 5
7.Installation.................................................................................................. 8
8.Important Maintenance Instruction.......................................................... 10

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1.Introduction
RA07W is a ClassA type device based on the LoRaWAN open protocol of Netvox and is compatible with the LoRaWAN protocol.
It is the long-distance wireless device for locating the leakage position.
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.

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2.Appearance
3.Main Feature
Compatible with LoRaWAN
Adopt SX1276 wireless communication module
DC 12V adapter power supply
Protection level: IP65
Detect the water contact position of the leakage detection line
Locate the leakage position
Simple operation and setting
4.Application
Data center and computer room
Leakage monitoring in basement
Water pipe leakage detection
Ship bilge monitoring
Archives
Warehouse
Other occasions need to be detected whether there is the water leakage or are more sensitive to water leakage.
Indicator
Function Key

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5.Set Up Instruction
O
n/Off
Power ON RA07W are connected to DC 12V adapter for power on.
Turn On Connect with power on to turn on.
Restore to Factory Setting Press and hold the function key for 5 seconds and the green indicator flashes 20 times.
Power Off Disconnect from the power supply.
Note
1. Press and hold any button to power on, and the device will be in engineering test mode.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
Network Joining
Never Join the Network
Turn on the device to search the network.
The green indicator keeps on for 5 seconds: success.
The green indicator remains off: fail
Had Joined the Network
(Not in the factory setting)
Turn on the device to search the previous network.
The green indicator keeps on for 5 seconds: success.
The green indicator remains off: fail.
Fail to Join the Network Suggest checking the device registration information on the gateway or consulting your platform
server provider if the device fails to join the network.
Function Key
Press and Hold for 5 Seconds
Restore to the factory setting / Turn off
The green indicator flashes 20 times: success
The green indicator remains off: fail
Press once The device is in the network: the green indicator flashes once and the device sends a data report.
The device is not in the network: the green indicator remains off.

5
Restore to Factory Setting
Description
RA07W has the function of the power-down saving the memory of network-joining
information. This function acquiesces in turn off, that is, it will rejoin every time when it is
power on. If the device is turned on by the ResumeNetOnOff command, the last
network-joining information will be recorded when every time it is power on. (including
saving the network address information that it is assigned, etc.) If users want to join a new
network, the device needs to perform the factory setting, and it will not rejoin the last network.
Operation Method
1. Press and hold the binding button for 5 seconds and then release
(release the binding button when the LED flashes), and the LED will flash 20 times.
2. The device automatically restarts to rejoin the network.
6.Data Report
After power on, the device will immediately send a version packet report and a data report.
The device sends data according to the default configuration before any other configuring.
Default Setting:
MaxTime = 3600s
MinTime = 3600s
If there is no leakage, it will report once every 3600s.
If the leakage change is greater than 2dm, the leakage information will be reported immediately.
The reported data of the device is the situation of the liquid leakage.
Water Leak Detection:
(1) Before usage, the sensor length must be set through the instruction. (Unit: dm.)
(2) The accuracy of the device is expressed as ± (Length of detection line*0.5%+0.5m).
(3) When the vertical surface of the leaking sensor is submerged by water, and the horizontal surface exceeds 5cm,
the device will detect the leaking state, locate the specific position of the leakage, and immediately report the data to
the gateway.
*The current sampling cycle is 1s.
The positioning data may be deviated when just soaked in water, and then the value will stabilize after 5s.
The device reported data parsing please refer to Netvox LoraWAN Application Command document and Netvox Lora Command
Resolver http://www.netvox.com.cn:8888/page/index

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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 RA07W device parameter MinTime = 3600s, MaxTime = 3600s
Downlink：010C0E100E100000000000
Device returns：
810C000000000000000000 (Configuration success)
810C010000000000000000 (Configuration failure)
(2)Read RA07W device parameter
Downlink：020C000000000000000000
Device return：
820C0E100E100000000000 (device current parameter)
Description Device Cmd
ID
Device
Type NetvoxPayLoadData
ConfigReport
Req
RA07W
0x01
0x0C
MinTime
(2bytes Unit: s)
MaxTime
(2bytes Unit: s)
Reserved
(5Bytes, Fixed 0x00)
ConfigReport
Rsp 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)
Reserved
(5Bytes, Fixed 0x00)

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Example of Configuring Sensor Parameter:
SetSensorPara
Req
RA07W
0x03
0x0C
LineLength
(2Bytes, Unit:10cm)
Sensitivity
(1Byte,Hihg_0x00,Mid_0x
01,Low_0x02)
Reserved
(6Bytes,Fixed 0x00)
SetSensorPara
Rsp 0x83 Status (0x00_success) Reserved (8Bytes, Fixed 0x00)
GetSensorPara
Req 0x04 Reserved (9Bytes, Fixed 0x00)
GetSensorPara
Rsp 0x84 LineLength (2Bytes, Unit:10cm)
Sensitivity
(1Byte,Hihg_0x00,Mid_0x
01,Low_0x02)
Reserved
(6Bytes, Fixed 0x00)
(1)Configure RA07W Length od Line = 70dm (2 bytes, decimeter), Sensitivity 00 (1 byte, 00 is the most sensitive)
Downlink：030C004600000000000000
Device returns：
830C000000000000000000 (Configuration success)
830C010000000000000000 (Configuration failure)
(2)Read RA07W device parameter
Downlink：040C000000000000000000
Device return：
840C004600000000000000

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7.Installation
1. RA07W is fixed with screws (purchased by self), and the device is fixed to the wall or other surface (as the figure below).
Note: Do not install the device in a metal shielded box or in an environment with other electrical equipment around it to avoid
affecting the wireless transmission of the device.
2. Water Line Structure
Length of Water Line: up to 100 meters
Water Detection Alarm: It is recommended that the length of the line is soaked in water greater than 5cm,
and the depth of the line is greater than 2mm. (refer to the installation diagram)
Alarm time: immediately report (within 10 seconds)
*The length of the water line has been set via the main unit before shipping. If the rope need to be manually wired, the length of
the line must be set via the main unit when it is used at the first time.
Fix with
screws
RA07W
Socket
Adapter 12V
Signal line
Detection wire
Double helix
Signal line
Water Line
Fix with screws

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3. Installation Suggestions and Example
fixed by cable clips fixed by vertical hoisting along pipe
(recommend) (recommend) (recommend)
binding with mental fixed by glue in front of air-conditioning outlet
(susceptible to interference)(susceptible to damage cable) (damp to false alarm )
Note:
The installation position of the water line should be far away from high-temperature fire, strong magnetic fields, and
humid and dusty environments. Take care to avoid all kinds of sharp objects from scratching the cable sheath.
RA07W Report time: real time (within 10 seconds)
Fixed hook
检测线
>5cm
Detection wire
Soak
ing depth > 2mm
Soaking water > 5cm, Send a Report
Water

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8.Important Maintenance Instruction
The device is a product with 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 water 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 way can damage its detachable parts and electronic components.
• Do not store in excessive heat place. High temperatures can shorten the life of electronic devices, destroy batteries, and deform
or melt some plastic parts.
• Do not store in excessive 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. Treating equipment roughly can destroy internal circuit boards and delicate structures.
• Do not wash with strong chemicals, detergents, or strong detergents.
• Do not paint the device. Smudges can make debris block detachable parts up and affect normal operation.
• Do not throw the battery into the fire to prevent the battery from exploding. Damaged batteries may also explode.
• The average time that PM2.5 Dust Sensor is without any failures is 3 years. If the concentration is more than 300ug/m3 for
more than 50% of a year, or the concentration exceeds 500ug/m3 for more than 20% of a year, the consistency of the sensor
will decrease. The data may be high because of the internal dust accumulation.
All the above suggestions apply equally to your device, batteries, and accessories.
If any device is not operating properly.
Please take it to the nearest authorized service facility for repairing.