netvox R718EA User manual

Model：R718EA
Wireless Tilt Angle
and
Surface Temperature Sensor
R718EA
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.
Wireless Tilt Angle and Surface Temperature Sensor

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Table of Content
1. Introduction.......................................................................................................................................................................................3
2.Appearance........................................................................................................................................................................................3
3. Main Features ...................................................................................................................................................................................4
4. Set up Instruction..............................................................................................................................................................................5
5. Data Report.......................................................................................................................................................................................7
5.1 ActiveThreshold and InActiveThreshold .................................................................................................................................8
5.2 Offset calibration......................................................................................................................................................................8
5.3 Example of data configuration .................................................................................................................................................8
6. Installation ......................................................................................................................................................................................11
7. Information about Battery Passivation...........................................................................................................................................12
7.1 To determine whether a battery requires activation................................................................................................................12
7.2 How to activate the battery.....................................................................................................................................................12
8. Important Maintenance Instruction ................................................................................................................................................13

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1. Introduction
The R718EA is a LoRaWAN ClassA device, it detects the angle of three-axis tilt and surface temperature of the detected object,
and it is compatible with LoRaWAN protocol.
When the device moves or vibrates over threshold value, it immediately reports the data of temperature and the tilt angle.
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
NTC Thermistor Sensor

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3. Main Features
Apply SX1276 wireless communication module
2 sections ER14505 3.6V Lithium AA battery
Detect tilt angle of the X, Y, and Z axes
The base is attached with a magnet that can be attached to a ferromagnetic material object
Protection level IP65/IP67 (optional)
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
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. Five seconds 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.
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)
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: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off

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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
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 two uplink packets including temperature, battery voltage,
tilt angle of the X, Y, and Z axes.
The device sends data in the default configuration before any configuration is done.
Default Setting:
MaxTime: Max Interval = 60 min = 3600s
MinTime: Max Interval = 60 min = 3600s
BatteryChange = 0x01 (0.1v)
AngleChange = 0x05 (5°)
ActiveThreshold = 0x0003 (Range:0x0003-0x00FF)
Deactivetime = 0x05 (5 seconds) (Range:0x0003-0x00FF)
TemperatureChange = 0x0A (1°)
R718EA Reporting Requirements:
When R718EA detects one of the three-axis tilt, and the change amount of angle is equal/greater than the set AngleChange, it
would report at MinTime. R718EA would also report at MinTime while detects the surface temperature changes.
The data of three-axis accelerometer of the device needs to be lower than InActiveThreshold (cannot be modified) and the
duration has to be more than 5 seconds before the next detection. If tilt or vibration continues to occur during this process, it
would restart the timer.
Note:
(1) R718EA is using three-axis accelerometer to detect tilt.
(2) The device report interval will be programmed based on the default firmware which may vary.
(3) 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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5.1 ActiveThreshold and InActiveThreshold
Formula
Active Threshold=Critical value ÷ 9.8÷ 0.0625
* The gravitational acceleration at standard atmospheric pressure is 9.8 m/s2
* The scale factor of the threshold is 62.5 mg
Active Threshold Active Threshold can be changed by ConfigureCmd
Active Threshold range is 0x0003-0x00FF (default is 0x0003);
Deactive time Deactivetime can be changed by ConfigureCmd
Deactivetime range is 0x03-0xFF (default is 0x05)
Example
Assuming that the critical value is set to be 10m/s2, the Active Threshold would be set
10/9.8/0.0625=16.32
Active Threshold would be set integer as 16.
5.2 Offset calibration
The accelerometer is a mechanical structure that contains components that can move freely.
These moving parts are very sensitive to mechanical stress, far beyond solid-state electronics.
The 0g offset or offset is an important accelerometer indicator because it defines the baseline used to measure acceleration.
After installing R718EA, turn on the device and wait for the device join the network 1 minute
, the device will automatically
offset the calibration.
If the device installation position moves, you need to power off the device 1 minute and restart turn on.
5.3 Example of data 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)

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Description Device Cmd
ID Device Type NetvoxPayLoadData
ConfigReportReq
R718EA
0x01
0x9A
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s)
BatteryChange
(1byte
Unit:0.1v)
AngleChange
(1byte Unit:1°)
Temperature
Change
(1byte
Unit:0.1°C)
Reserved
(2Bytes,Fixed
0x00)
ConfigReportRsp 0x81 Status(0x00_success) Reserved (8Bytes,Fixed 0x00)
ReadConfigReportReq 0x02 Reserved (9Bytes,Fixed 0x00)
ReadConfigReportRsp 0x82 MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s)
BatteryChange
(1byte
Unit:0.1v)
AngleChange
(1byte Unit:1°)
Temperature
Change
(1byte
Unit:0.1°C)
Reserved
(2Bytes,Fixed
0x00)
SetActiveThresholdReq 0x03 Threshold
(2Bytes) Deactivetime (1Byte,Unit:1s) Reserved (6Bytes,Fixed 0x00)
SetActiveThresholdRsp 0x83 Status
(0x00_success) Reserved (8Bytes,Fixed 0x00)
GetActiveThresholdReq 0x04 Reserved
(9Bytes,Fixed 0x00)
GetActiveThresholdRsp 0x84 Threshold
(2Bytes) Deactivetime (1Byte,Unit:1s) Reserved (6Bytes,Fixed 0x00)
(1)Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v, AngleChange =5°,
TemperatureChange=1°C
Downlink: 019A003C003C01050A0000 003C(Hex) = 60(Dec)
Device returns:
819A000000000000000000 (Configuration is successful)
819A010000000000000000 (Configuration failed)
(2)Read device parameters
Downlink: 029A000000000000000000
Device returns:
829A003C003C01050A0000 (current device parameters)
(3)Configure device parameters ActiveThreshold=16, Deactivetime =5 seconds
Assuming that the Active Threshold is set to 10m/s2, the value to be set is 10/9.8/0.0625=16.32,and the last value obtained is
an integer and is configured as 16.
Downlink: 039A001005000000000000
Device returns:
839A000000000000000000 (Configuration is successful)
839A010000000000000000 (Configuration failed)

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(4)Read device parameters
Downlink: 049A000000000000000000
Device returns:
849A001005000000000000 (Device current parameter)
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
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
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
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
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
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.

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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.
6. Installation
While installing, it is recommended to install R718EA while the device is power-off, and be installed horizontal at a stationary
place. After installing and fixing R718EA, please turn on the device.After the device is joined, one minute later, R718EA would
perform the offset calibration of the device.
R718EA would need some time to gather the data of three-axis tilt angle, the voltage of battery and the surface temperature for
reference.
The specific configuration depends on the actual situation.
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.

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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.
7.1 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 3.2V, it means the battery requires activation.
7.2 How to activate the battery
a. Connect a battery to a 68ohm resistor in parallel (3.6V / 68ohm=53mA)
b. Keep the connection for 2 minutes
c. The voltage of the circuit should be ≧3.2V

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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.