netvox R718IA2 User manual

Model：R718IA2
Wireless 2-Input 0-5VADC Sampling Interface
Wireless 2-Input 0-5VADC
Sampling Interface
R718IA2
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.

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Table of Content
1. Introduction .......................................................................................................................................................................2
2. Appearance ........................................................................................................................................................................2
3. Main Feature......................................................................................................................................................................3
4. Set Up Instruction..............................................................................................................................................................4
5. Data Report........................................................................................................................................................................5
6. Installation .........................................................................................................................................................................8
7. Information about Battery Passivation..............................................................................................................................9
7.1 To determine whether a battery requires activation...................................................................................................9
7.2 How to activate the battery ........................................................................................................................................9
8. Important Maintenance Instruction.................................................................................................................................10

2
1. Introduction
R718IA2 is a voltage detection device that is a Class A device based on the LoRaWAN open protocol and is compatible with the
LoRaWAN protocol. R718IA2 will check the voltage of device regularly according to the configured time, and the ADC sampling
voltage range is 0-5V.
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
Indicator
Function Key
Ground
ADC Sampling
Ground
ADC Sampling
Red
Red
Black
Black

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3. Main Feature
Adopt SX1276 wireless communication module
2 sections of ER14505 battery in parallel (AA SIZE 3.6V / section)
2-input voltage detection
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
Configuring parameters and reading data via third-party software platforms, and set alarms via SMS text and email (optional)
Applicable to third-party platforms: 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 (user may need a 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 20 times
Power off Remove Batteries
Note
1. Remove and insert the battery, and the device is in turn-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. In the first 5 seconds after power on, the device is in engineering test mode
Network Joining
Never join 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
(Not restore to the factory setting)
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
1. Suggest to remove batteries if the device is not used to save power.
2. 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 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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The device will immediately send a version packet report and a data report including voltage.
The device sends data according to the default configuration before any other configuring.
Default Setting:
MaxTime: Max Interval = 60 min =3600s
MinTime: Max Interval = 60min = 3600s
Reportchange: BatteryVoltageChange = 0x01 (0.1v)
Note:
1. The cycle of the device sending the data report is according to the default.
2. The interval between two reports must be the MinTime.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/page/index to resolve uplink data.
Sleeping Mode
The device is on and in the
network
Sleeping period: Min Interval
When the reportchange exceeds setting value or the state changes, the device send a data
report according to Min Interval.
The device is on but not in
the network
1. Suggest to remove batteries if the device is not used
2. Suggest to check device verification on gateway
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

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Example of ConfigureCmd
(1) Configure R718IA2 device parameter MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v
Downlink: 0141003C003C0100000000
Device Return:
8141000000000000000000 (configuration success)
8141010000000000000000 (configuration failure)
(2) Read R718IA2 device parameter
Downlink: 0241000000000000000000
Device Return:
8241003C003C0100000000 (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.
Description Device Cmd
ID DeviceType NetvoxPayLoadData
Config
ReportReq
R718IA2
0x01
0x41
MinTime
(2bytes Unit: s)
MaxTime
(2bytes Unit: s)
BatteryChange
(1byte Unit:0.1v)
Reserved
(4Bytes, Fixed0x00)
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)
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#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 :
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
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
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
3.
When the ADC sampling interface sensor detects the
current voltage according to the configured time or by
pressing the button, it sends the data immediately
1. Wireless ADC Sampling Interface (R718IA2) has the built-in
magnet (as the figure below). When installed, it can be attached to
the surface of an object with iron which is convenient and quick.
To make the installation more secure, use screws (purchased) to
secure the unit to a 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. Connect the sampling line of theADC sampling interface
sensor to the transmitter according to the wiring method
shown in figure. There are two connection modes, 2-wire
and 3-wire.
Wireless Sampling Interface (R718IA2)
It can also be applied to the following scenarios:
Pressure transmitter
Differential pressure transmitter
Level transmitter
The transmitter with 0-5V output signal
Fig. 2-wire System Example Diagram
(for wiring reference)
Fig. 3-wire System Example Diagram
(for wiring reference)

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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.
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 3.3V, it means the battery requires activation.
7.2 How to activate the battery
a. Connect a battery to a 68ohm resistor in parallel
b. Keep the connection for 6~8 minutes
c. 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 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.
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.