netvox R718N1 E Series User manual

Wireless Single-Phase Current Meter
R718N1xxx(E) Series
Wireless Single-Phase
Current Meter
R718N1xxx(E) Series
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 Contents
1. Introduction ..................................................................................................................................... 2
2. Appearance ...................................................................................................................................... 3
3. Features ........................................................................................................................................... 3
4. Set up Instruction............................................................................................................................. 4
5. Data Report ..................................................................................................................................... 5
5.1 Example of ReportDataCmd..................................................................................................... 6
5.2 Example of ConfigureCmd ....................................................................................................... 8
5.3 Example of Set/GetSensorAlarmThresholdCmd ...................................................................... 9
5.4 Example for MinTime/MaxTime logic ................................................................................... 10
6. Installation..................................................................................................................................... 12
7. Information about Battery Passivation .......................................................................................... 14
7.1 To determine whether a battery requires activation................................................................. 14
7.2 How to activate the battery ..................................................................................................... 14
8. Important Maintenance Instruction................................................................................................ 15

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1. Introduction
The R718N1xxx(E) series is the single-phase current meter device for Netvox Class A type devices based on the LoRaWAN
open protocol and is compatible with the LoRaWAN protocol. R718N1xxx(E) series has different measuring range for different
variety of CT. It is divided into:
Model
Name
CT cables
R718N1
Wireless Single-Phase Current Meter with 1 x 30A Solid Core CT
-
R718N1E
Detachable cables
R718N13
Wireless Single-Phase Current Meter with 1 x 30A Clamp-On CT
-
R718N13E
Detachable cables
R718N17
Wireless Single-Phase Current Meter with 1 x 75A Clamp-On CT
-
R718N17E
Detachable cables
R718N115
Wireless Single-Phase Current Meter with 1 x 150A Clamp-On CT
-
R718N115E
Detachable cables
R718N125
Wireless Single-Phase Current Meter with 1 x 250A Clamp-On CT
-
R718N125E
Detachable cables
R718N163
Wireless Single-Phase Current Meter with 1 x 630A Clamp-On CT
-
R718N163E
Detachable cables
R718N1100
Wireless Single-Phase Current Meter with 1 x 1000A Clamp-On CT
-
R718N1100E
Detachable cables
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. Features
⚫2 x ER14505 lithium battery in parallel (3.6V/section)
⚫Main body: IP53; Current transformer: IP30
⚫LoRaWANTM Class A compatible
⚫Frequency Hopping Spread Spectrum (FHSS)
⚫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: Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html. Users can find battery lifetime for various
models at different configurations on this website.
1. The actual range may vary depending on the environment.
2. Battery life is determined by sensor reporting frequency and other variables.
Indicator
Function Key
CT
R718N17 (non-detachable cables)
R718N17E (detachable cables)

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4. Set up Instruction
On/Off
Power on
Insert batteries. (Users may need a screwdriver to open the battery cover.)
Turn on
Press and hold the function key for 3 seconds until the green indicator flashes once.
Turn off (Reset to factory setting)
Press and hold the function key for 5 seconds until green indicator flashes 20 times.
Power off
Remove Batteries.
Note: 1.The device will be off in default after removing the battery and insert it again.
2.It is suggested to wait for 10 seconds between turning on and off the device.
3. 5 seconds after power on, the device will be in engineering test mode.
Network Joining
Never joined the network
Turn on the device and search for the network to join.
The green indicator light stays on for 5 seconds: Success
The green indicator light remains off: Fail
Had joined the network
(without factory resetting)
Turn on the device, and it will search for the previous network to join.
The green indicator light stays on for 5 seconds: Success
The green indicator light remains off: Fail
Fail to Join the Network
1st –2nd minutes: Wake up every 15 seconds to send request for joining the network
3rd –4th minutes: The device is in sleeping mode and wakes up every 15 minutes to send
request for joining the network
Function Key
Press the function key and
hold 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
Short press the function key
(release it within 500ms)
The device is in the network: green indicator light flashes once and sends a report after
sampling. (Note: Date sampling takes 15 seconds .)
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, the device would send
a data report based on the Min Interval.
The device is turned on but not in the
network
1st –2nd minutes: wake up every 15 seconds to send request for joining the network
3rd –4th minutes: The device is in sleeping mode and wakes up every 15 minutes to send
request for joining the network

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Note: 1. To save the energy, please remove the batteries when the device is not in use.
2. Please check the device verification information on the gateway or consult your platform server provider.
Low Voltage Warning
Low Voltage
3.2V
5. Data Report
The device will immediately send a version packet report along with two uplink packets including current value (mA).
The device sends data in the default configuration before any configuration is done.
Default setting:
Max Interval = 0x708 (1800s)
Min Interval = 0x708 (1800s)
ReportChange= 0x0064 (100 mA)
Note: (1) Min Interval < 30s → Data reported every 30 seconds
(2) Max Interval < Min Interval → Data reported at Min Interval
(3) Frequent changes of current may cause inaccurate results when the device is sampling (15 seconds before the
beginning of the Min Interval).
Measurement Range and Accuracy:
Device
CT
Measurement Range
Accuracy
R718N1(E)
Solid-Core
100mA – 30A
±1%
R718N13(E)
Clamp-on
100mA – 30A
R718N17(E)
Clamp-on
100mA – 75A
R718N115(E)
Clamp-on
1A – 150A
R718N125(E)
Clamp-on
1A – 250A
R718N163(E)
Clamp-on
5A – 630A
R718N1100(E)
Clamp-on
10A – 1000A
Note: (1) R718N1(E), R718N13(E), and R718N17(E): report data as 0A when the current < 0.1A .
(2) R718N115(E), R718N125(E), R718N163(E), and R718N1100(E):
report data as 0A when the current < 1A .
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/cmddoc to resolve uplink data.
(MinTime cannot be less than 30 seconds. MaxTime must be greater than MinTime.)

6
Data report configuration and sending period are as following:
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
ReportType – 1 byte –the presentation of the NetvoxPayLoadData, according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
Min. Interval
(Unit: second)
Max. Interval
(Unit: second)
Reportable Change
Current Change≥
Reportable Change
Current Change＜
Reportable Change
Any number between
30 to 65535
Any number between
Min Interval to 65535
Can not be 0
Report
per Min. Interval
Report
per Max. Interval
Device
Device
Type
Report
Type
NetvoxPayLoadData
R718N1xxx(E)
Series
0x49
0x00
SoftwareVersion
(1 Byte)
Eg.0x0A-V1.0
HardwareVersion
(1 Byte)
DateCode (4 Byte)
eg 0x20170503
Reserved (2 Byte)
0x01
Battery
(1 Byte, unit:0.1v)
Current (2 Byte,
unit: mA)
Multiplier (1 Byte)
the real current should convert
with Current* Multiplier
Reserved (4 Byte)
Tips
1. Battery Voltage:
The voltage value is bit 0 ~ bit 6, bit 7=0 is normal voltage, and bit 7=1 is low voltage.
Battery=0xA0, binary=1010 0000, if bit 7= 1, it means low voltage.
The actual voltage is 0010 0000 = 0x20 = 32, 32*0.1v =3.2v
2. Version Packet:
When Report Type=0x00 is the version packet, such as 0149000A02202208210000, the firmware version is 2022.08.21.
3. Data Packet:
When Report Type=0x01 is data packet.

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Example of Uplink: 014901240E150100000000
1st byte (01): Version
2nd byte(49): DeviceType－ R718N1xxx(E) Series
3rd byte (01): ReportType
4th byte(24): Battery－3.6V 24 (Hex) = 36 (Dec), 36* 0.1v = 3.6v
5th – 6th byte (0E15): Current－3605 mA 0E15 (Hex) = 3605 (Dec), 3605* 1mA = 3605mA
7th byte (01): Multiplier
8th-11th byte (00000000): Reserved

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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 device parameters
MinTime = 1min (0x3C), MaxTime = 1min (0x3C), CurrentChange = 100mA (0x64)
Downlink: 0149003C003C0064000000
The device returns:
8149000000000000000000 (Configuration successful)
8149010000000000000000 (Configuration failed)
(2)Read device configuration parameters
Downlink: 0249000000000000000000
The device returns:
8249003C003C0064000000 (Current device configuration parameters)
Description
Device
Cmd
ID
Device
Type
NetvoxPayLoadData
Config
ReportReq
R718N1xxx(E)
Series
0x01
0x49
MinTime
(2bytes Unit:s)
MaxTime
(2bytes
Unit: s)
CurrentChange
(2byte
Unit:1mA)
Reserved
(3Bytes,
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)
CurrentChange
(2byte
Unit:1mA)
Reserved
(3Bytes,
Fixed 0x00)

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5.3 Example of Set/GetSensorAlarmThresholdCmd
Fport: 0x16
CmdDescriptor
CmdID
(1Byte)
Payload (10Bytes)
SetSensorAlarm
ThresholdReq
0x01
Channel
(1Byte,
0x00_Channel1)
SensorType
(1Byte,
0x00_Disable ALL
0x27_ Current,)
SensorHighThreshold
(4Bytes,Unit:same as
reportdata in fport6,
0Xffffffff_DISA-BLE
HighThreshold)
SensorLowThreshold
(4Bytes,Unit:same as
reportdata in fport6,
0Xffffffff_DISABLE
LowThreshold)
SetSensorAlarm
ThresholdRsp
0x81
Status
(0x00_success)
Reserved (9Bytes,Fixed 0x00)
GetSensorAlarm
ThresholdReq
0x02
Channel
(1Byte,
0x00_Channel1)
SensorType
(1Byte,
Same as the
SetSensorAlarmThresh
oldReq’s SensorType)
Reserved (8Bytes,Fixed 0x00)
GetSensorAlarm
ThresholdRsp
0x82
Channel
(1Byte,
0x00_Channel1)
SensorType
(1Byte,
0x00_Disable ALL
0x27_ Current,)
SensorHighThreshold
(4Bytes,Unit:same as
reportdata in fport6,
0Xffffffff_DISABLEHighT
hreshold)
SensorLowThreshold
(4Bytes,Unit:same as
reportdata in fport6,
0Xffffffff_DISABLELow
Threshold)
(1) Configure device parameter
Channel = 0x00 (fixed value), SensorType = 0x27 (fixed value), SensorHighThreshold = 1000mA (0x3E8),
SensorLowThreshold=100mA (0x64)
Downlink: 010027000003E800000064
The device returns:
8100000000000000000000 (Configuration successful)
8101000000000000000000 (Configuration failed)
(2) Read device configuration parameters.
Downlink: 0200270000000000000000
The device returns:
820027000003E800000064 (Current device configuration parameters)

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5.4 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
Note: MaxTime = MinTime. Data will only be reported 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.
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
sleeping (MinTime)
sleeping (MinTime)
MaxTime MaxTime
Wake up and collect data
REPORTS 3.6V
Wakes up and collect data
REPORTS 3.5V
Wakes up and collect data
REPORTS 3.6V
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
sleeping
sleeping
sleeping
sleeping (MinTime)
MaxTime
0H 1H
15thM30thM45thM2H
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.
sleeping
sleeping

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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.

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6. Installation
1. The single-phase current meter R718N1xxx(E) series
has a built-in magnet (see Figure 1 below). 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 single-phase current meter 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.
5. Press the function key of the device to start sampling
data and report the data after 15 seconds.
Note: MinTime cannot be less than 30 seconds.
MaxTime must be set greater than Min Time.
The single-phase current detector R718N1xxx(E) is suitable
for the following scenarios:
⚫ School
⚫ Factory
⚫ Shopping mall
⚫ Office building
⚫ Smart building
Where the electrical data of the device with the single-phase
electricity needs to be detected.
2. Open the clamp-on 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:
3.1 Before using, users must check whether the appearance
is deformed; otherwise, the test accuracy will be
affected.
3.2 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.
3.3 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.

13
Neutral Wire
Live Wire
Detected Object
L ← K
Power Supply
1. The back of R718N1xxx(E) can be attached to iron surface or users can fix the two ends of device on the wall with screws.
2. When installing the R718N1xxx(E) 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)
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.
Note:
1. Please do not disassemble the device unless it is required to replace the batteries.
2. Do not touch the waterproof gasket, LED indicator, and 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.
Live Wire
Neutral Wire
L ← K

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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.

15
8. Important Maintenance Instruction
Kindly pay attention to the following in order to achieve the best maintenance of the product:
•Do not put the device near or submerge into water. Minerals in rain, moisture, and other liquids could cause corrosion of
electronic components. Please dry the device, if it gets wet.
•Do not use or store the device in dusty or dirty environments to prevent damage to parts and electronic components.
•Do not store the device in high temperatures. This may shorten the lifespan of electronic components, damage batteries, and
deform plastic parts.
•Do not store the device in cold temperatures. Moisture may damage circuit boards as the temperatures rise.
•Do not throw or cause other unnecessary shocks to the device. This may damage internal circuits and delicate components.
•Do not clean the device with strong chemicals, detergents, or strong detergents.
•Do not apply the device with paint. This may block detachable parts and cause malfunction.
•Do not dispose of batteries in fire to prevent explosion.
The instructions are applied to your device, battery, and accessories.
If any device is not working properly, please bring it to the nearest authorized service provider for repair.