netvox R718NL3 Series User manual

Wireless Light Sensor and 3-Phase Current Meter
Model: R718NL3
Wireless Light Sensor and
3-Phase Current Meter
R718NL3
User Manual

1
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. 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 R718NL3 series is a Light Sensor and 3-Phase Current Meter device for Netvox ClassA type devices based on the
LoRaWAN open protocol and is compatible with the LoRaWAN protocol. R718NL3 series have different measuring range for
different variety of CT.
It is divided into:
R718NL3 Wireless Light Sensor and 3-Phase Current Meter with 3 x 50A Solid Core CT
(Range:100mA-50A ,Accuracy ±1% within 300mA~50A)
R718NL37 Wireless Light Sensor and 3-Phase Current Meter with 3 x 75A Clamp-On CT
(Range: 100mA -75A ±1%, Accuracy ±1% within 300mA~50A)
R718NL315 Wireless Light Sensor and 3-Phase Current Meter with 3 x 150A Clamp-On CT (Range:1A-150A ±1%)
R718NL325 Wireless Light Sensor and 3-Phase Current Meter with 3 x 250AClamp-On CT (Range:1A-250A ±1%)
R718NL363 Wireless Light Sensor and 3-Phase Current Meter with 3 x630A Clamp-On CT (Range:10A-630A ±1%)
* When the current of the device that is 75A or below is less than 100mA, the current is reported as 0.
When the current of the device that is above 75Ais less than 1A, the current is reported as 0.
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.

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2. Appearance
3. Main Features
⚫Compatible with LoRaWAN protocol
⚫2 sections ER14505 3.6V Lithium AA battery
⚫Simple operating and setting
⚫Protection level: Main body IP53, Sensor IP30
⚫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
Note:
Battery life is determined by the sensor reporting frequency and other variables, please refer to
http://www.netvox.com.tw/electric/electric_calc.html
On this website, users can find battery life time for varied models at different configurations.
Light Sensor
Indicator
Function Key
CT

4
4. Set up Instruction
On/Off
Power on
Insert batteries. (users 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.The device will be off after removing the battery and insert it again.
2.It is suggested to wait for at least 10 seconds between turning the device on and off.
3.At 1st -5th second after power on, the device will be in engineering test mode.
Network Joining
If the device has never joined the
network
Turn on the device, and it will search for the network to join.
The green indicator light stays on for 5 seconds: joins the network successfully
The green indicator light remains off: fail to join the network
If the device has joined the network
and it is not set to default
Turn on the device, and it will search for the previous network to join.
The green indicator light stays on for 5 seconds: joins the network successfully
The green indicator light remains off: fail to join the network
If the device fails to join the network
(when the device is turned on)
It is suggested to check the device verification information on the gateway or consult your
platform server provider when the device fails to join the network.
Function Key
Press the function key and hold the
pressing for 5 seconds
The device will be set to default and turned off
The green indicator light flashes 20 times: success
The green indicator light remains off: fail
Press the function key once
The device is in the network: green indicator light flashes once and sends a report
The device is not in the network: green indicator light remains off
Sleeping Mode
The device is turned on and in the
network
Sleep 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
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
30~65535
Any number between
Min.~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 current, illuminance and battery
voltage.
The device sends data in the default configuration before any configuration is done.
Default setting:
Max Interval = 0x0E10 (3600s)
Min Interval = 0x0E10 (3600s)
CurrentChange:0x0064 (100 mA) // Subject to factory settings
IlluminanceChange: 0x0064 (100 Lux) // Subject to factory settings
Current and Illuminance Detection:
When the function key is manually triggered, the CT needs a 5-second sampling time.After sampling, the device reports
three-phase current value and illuminance value.
(An interval of 5 seconds is required to repeat the manual trigger so as to avoid operation failure. Or, please wait till the
configured report time.)
Note:
(1)The device report interval will be programmed based on the default firmware which may vary.
(2)The interval between two reports must be the minimum time.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://cmddoc.netvoxcloud.com/cmddoc to resolve uplink data.

6
5.1 Example of ReportDataCmd
FPort：0x06
Bytes
1
1
1
Var (Fix=8 Bytes)
Version
DeviceType
ReportType
NetvoxPayLoadData
Version–1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType–1 byte –Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype doc
ReportType –1 byte –the presentation of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData–Fixed bytes (Fixed =8bytes)
Device
Device
Type
Report
Type
NetvoxPayLoadData
R718NL3
series
0x99
0x01
Battery
(1Byte)
unit:0.1V
Current1
(2Bytes)
Unit:1mA
Current2
(2Bytes)
Unit:1mA
Current3
(2Bytes)
Unit:1mA
Mulitplier1
(1Byte)
the real current1
should convert with
Current* Multiplier
0x02
Battery
(1Byte)
unit:0.1V
Mulitplier2
(1Byte)
the real current2
should convert
with Current*
Multiplier
Mulitplier3
(1Byte)
the real current3
should convert
with Current*
Multiplier
Illuminance
(4Bytes)
Unit:1 Lux
Reserved
(1Byte)
fixed 0x00
Example of Uplink:
Packet#1 0199012405DC07D009C401
1st byte (01): Version
2nd byte (99): Device Type 0x99 －R718NL3 Series
3rd byte (01): Report Type
4th byte (24): Battery－3.6v , 24Hex=36 Dec 36*0.1v=3.6v
5th 6th byte (05DC): Current 1－1500mA , 05DC Hex=1500 Dec
7th 8th byte (07D0): Current 2－2000mA , 07D0Hex=2000 Dec
9th 10th byte (09C4): Current 3－2500mA , 09C4Hex=2500 Dec
11th byte (01): Multiplier1－1
Packet#2: 0199022401010000000300
1st byte (01): Version

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2nd byte (99): Device Type 0x99 －R718NL3 Series
3rd byte (02): Report Type
4th byte (24): Battery－3.6v , 24Hex=36 Dec 36*0.1v=3.6v
5th byte (01): Multiplier2－1
6th byte (01): Multiplier3－1
7th -10th byte (00000003): Illuminance －3Lux
11th byte (00): Reserved
Note:
1.When the current which is detected by the R718NL3 series exceeds 65535mA, the Multiplier column will be displayed as
“10”.(Because the current value of the payload is 2 bytes, it can be displayed up to 0xFFFF.)
2. The real current should convert with Current* Multiplier
5.2 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 report parameters MinTime = 1min, MaxTime = 1min, CurrentChange = 100mA, IlluminanceChange = 100Lux
Downlink: 0199003C003C0064006400
The device returns:8199000000000000000000 (Configuration succeeded)
Description
Device
Cmd
ID
Device
Type
NetvoxPayLoadData
ConfigReport
Req
R718NL3
series
0x01
0x99
MinTime
(2bytes)
Unit:s
MaxTime
(2bytes)
Unit:s
CurrentChange
(2byte)
Unit:1mA)
Illuminance
change
(2bytes Unit:1Lux)
Reserved
(1Byte)
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
CurrentChange
(2byte)
Unit:1mA)
Illuminance
change
(2bytes Unit:1Lux)
Reserved
(1Byte)
Fixed 0x00)

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8199010000000000000000 (Configuration failed)
(2) Read device configuration parameters
Downlink: 0299000000000000000000
The device returns:8299003C003C0064006400 (current device configuration parameters)
5.3 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 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
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 3.5V
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.

9
Neutral Wire
Live Wire
Detected Object
L ←K
Power Supply
Note:
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
1. 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.
2. When installing the R718NL3 series current transformer, please separate the live and neutral wires of the wire to be detected,
and only take the live wire through current transformer and start the measurement according to the wiring below:
CT Wiring Schematic Diagram (Current direction K→L)

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If the live wire and the neutral wire are connected together at the same time, they will offset each other and the measurement is 0.
Live Wire
Neutral Wire
L ←K
1. The single-phase current detector (R718NL3) has a
built-in magnet. It can be attached to the surface of an
object with iron during installation, which is convenient
and quick.
To make the installation more secure, please use screws
(purchased separately) to fix the device to the wall or other
objects (such as the installation diagram).
Note: 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.
4. The three-phase current detector (R718NL3) samples the
current according to MinTime. If the current value sampled
this time relatively exceeds the set value (the default is
100mA) more than the current value reported last time, the
device will immediately report the current value sampled
this time. If the current variation does not exceed the
default value, the data will be reported regularly according
to MaxTime.
Press the [Key] of the device to start sampling data and
report the data after 3 to 5 seconds.
Note: MaxTime must be set greater than Min Time.
The three-phase current detector (R718NL3) is suitable for the
following scenarios:
⚫School
⚫Factory
⚫Shopping mall
⚫Office building
⚫Smart building
Where the electrical data of the equipment with the three-phase
electricity needs to be detected.
2. Open the split current transformer, and then pass the live wire
through the current transformer according to the installation.
Note:
"L←K" is marked on the bottom of the CT.
3. Precautions:
⚫Before using, user must check whether the appearance is
deformed; otherwise, the test accuracy will be affected.
⚫The using environment should be kept away from strong
magnetic fields, so as not to affect the test accuracy. It is strictly
forbidden to use in humid and corrosive gas environments.
⚫Before installation, please confirm the current value of the load.
If the current value of the load is higher than the measurement
range, select a model with a higher measurement range.

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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.
Installation Diagram
Screw
Fixation
Screw
Fixation
R718NL3
Wire to be
detected
Wire to be
detected
Wire to be
detected
Current Direction
Current Direction
Phase A
Phase B
Phase C
The CT terminal should be close to
the power terminal as much as
possible.
Current Direction
CT
CT
CT
The CT terminal should be close
to the power terminal as much as
possible.
The CT terminal should be close
to the power terminal as much as
possible.

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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 it is suggested that if the storage period is more
than one month from the date of battery production, all the batteries should be activated.
If encountering the situation of battery passivation, users can activate the battery to eliminate the battery hysteresis.
ER14505 Battery Passivation:
7.1 To determine whether a battery requires activation
Connect a new ER14505 battery to a 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 resistor in parallel
b. Keep the connection for 5~8 minutes
c. The voltage of the circuit should be ≧3.3, indicating successful activation.
Brand
Load Resistance
Activation Time
Activation Current
NHTONE
165 Ω
5 minutes
20mA
RAMWAY
67 Ω
8 minutes
50mA
EVE
67 Ω
8 minutes
50mA
SAFT
67 Ω
8 minutes
50mA
Note:
If you buy batteries from other than the above four manufacturers, then the battery activation time, activation current, and
required load resistance shall be mainly subject to the announcement of each manufacturer.

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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.