netvox R718N3 User manual

Model：R718N3
Wireless Three-phase Current Detection Sensor
Wireless Three-phase Current Detection Sensor
R718N3
User Manual

1
Table of Content
1. Introduction.............................................................................................................................................................................................................................................................. 1
2. Appearance............................................................................................................................................................................................................................................................... 3
3. Main Features...........................................................................................................................................................................................................................................................3
4.Set up Instruction...................................................................................................................................................................................................................................................... 3
5. Data Report.............................................................................................................................................................................................................................................................. 5
6. Installation................................................................................................................................................................................................................................................................7
7. Important Maintenance Instruction..........................................................................................................................................................................................................................7

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1. Introduction
The R718N3 is a three-phase current sensing device for Netvox Class A type devices based on the LoRaWAN open protocol and is compatible with the
LoRaWAN protocol.
(1) Check the AC three-phase current according to reporting time configuration.
(2) Press the key to detect the current three-phase current, and report a command of three-phase current value report.
(3) The R718N3 is available in a variety of sub-models as below.
R718N3 Wireless 3-Phase Current Meter with 3 x 50A Solid-core CT
R718N37 Wireless 3-Phase Current Meter with 3 x 75A Split-core CT
R718N315 Wireless 3-Phase Current Meter with 3 x 150A Split-core CT
R718N325 Wireless 3-Phase Current Meter with 3 x 250A Split-core CT
R718N363 Wireless 3-Phase Current Meter with 3 x 630A Split-core CT
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
Fig.1 R718N3 (Solid-core CT) Appearance
Fig.2 R718N37 (Split-core CT) Appearance
3. Main Features
Compatible with LoRaWAN protocol.
Powered by 2 x ER14505 3.6V Lithium battery
Easy set up and installation
Detect three phase current value

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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. At 1st -5th second 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
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
When the device is turned on, it will immediately send a version package and a cluster report which
includes battery voltage and three-phase current values.
Data will be reported once per hour by default setting.
Maximum time: 3600 seconds
Minimum time: 3600 seconds (the device will check the current voltage value per Min. interval)
Default reportchange:
batteryvoltagechange ---- 0x01(0.1V)
Note:
Max Interval = 60min, Min Interval = 60min by default (this can be configurated according to the customer’s inquiry)
Data sending cycle is programmed by real configuration before shipment.
The interval between two reports must be Min. Interval.
Three-phase current detection:
When the button is pressed, a report is sent immediately to return the current three-phase current value.
Or it detects and returns current information when the configuration time is due.
The reported data is decoded by the Netvox LoRaWAN Application Command document and http://www.netvox.com.cn:8888/page/index
Data report configuration and sending period are as following:
Report configuration command example:
ConfigR
eportRe
q
R718
N3
0x01
0x4A
MinTim
e(2bytes
Unit:s)
MaxTime(
2bytes
Unit:s)
BatteryChang
e(1byte
Unit:0.1v)
Reserved (4Bytes,Fixed 0x00)
ConfigR
eportRsp
0x81 Status(0
x00_suc
cess)
Reserved (8Bytes,Fixed 0x00)
ReadCo
nfigRep
ortReq
0x02
Reserved (9Bytes,Fixed 0x00)
ReadCo
nfigRep
ortRsp
0x82
MinTim
e(2bytes
Unit:s)
MaxTime(
2bytes
Unit:s)
BatteryChang
e(1byte
Unit:0.1v)
Reserved (4Bytes,Fixed 0x00)
Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v
Downlink: 014A003C003C0100000000
The device returns:
814A000000000000000000 (Configuration succeeded)
814A010000000000000000 (Configuration failed)
Read device configuration parameters
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

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Downlink: 024A000000000000000000
The device returns:
824A003C003C0100000000 (current device configuration parameters)
Current report payload example:
Current data #1: 014A012400000000000001
Current data #2: 014A022401010000000000
Current1 = Current1 * Mulitplier1
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
Sleeping(MinTime) Sleeping(MinTime)
Wakes up and collects data Wakes up and collects data
REPORTS 3.6V REPORTS 3.5V
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BtteryVoltageChange 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 M1H
2H
Wakes up and
collects data
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping
0H 15th M30th M45th M 1H 1H 10th M1H 25th M 1H 40th M 1 1H 55th M
R718N3 0x4A
0x01
Battery(1
Byte,
unit:0.1V
)
Current1(2Bytes,U
nit:1ma)
Current2(2Bytes,Un
it:1ma)
Current3(
2Bytes,U
nit:1ma)
Mulitplier1(1Byte),the real
current1 should convert
with Current* Mulitplier
0x02
Battery(1
Byte,
unit:0.1V
)
Mulitplier2(1Byte),
the real current2
should convert with
Current* Mulitplier
Mulitplier3(1Byte),t
he real current3
should convert with
Current* Mulitplier
Reserved(5Bytes,fixed 0x00)
Wakes up and
collects data
REPORT 3.6V
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
3.5V |3.5-3.6|=0.1
REPORTS 3.5V
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.
Wakes up and
collects data 3.5V
Does not report
Wakes up
and collects
data
REPORTS
3.6V
Wakes up and
collects data
3.6V 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

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6. Installation
This product comes with waterproof function. 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. When installing the current transformer, separate the fire and neutral wires of the three-phase electric power, and take out the fire wire
through current transformer and start the measurement according to the wiring below:
(Current direction, K-->L)
Solid Core CT Split Core CT
7. Important Maintenance Instruction
Your device is a product of 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 moisture 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 can damage its detachable parts and electronic components.
• Do not store in excessive heat. High temperatures can shorten the life of electronic devices, destroy batteries, and deform or melt some plastic parts.
• Do not store in a 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. Rough handling of equipment can destroy internal circuit boards and delicate structures.
• Do not wash with strong chemicals, detergents or strong detergents.
• Do not apply with paint. Smudges can block debris in detachable parts and affect normal operation.
• Do not throw the battery into a fire to prevent the battery from exploding. Damaged batteries may also explode.
All of the above suggestions apply equally to your device, battery and accessories. If any device is not working properly.
Please take it to the nearest authorized service facility for repair.