netvox R718NL1 Wireless Light Sensor and 1-Phase Current Meter User Manual

R718NL1 Wireless Light Sensor and 1-Phase Current Meter
User Manual

Introduction

The R718NL1 series is a Wireless Light Sensor and 1-Phase Current Meter device for Netvox ClassA type devices based on the LoRaWAN open protocol and is compatible with the LoRaWAN protocol.
R718NL1 series have different measurement range for different variety of CT.

It is divided into:
R718NL1 Wireless Light Sensor and 1-Phase Current Meter with 1 x 30A Solid Core CT (Range:100mA-30A ±1%)
R718NL13 Wireless Light Sensor and 1-Phase Current Meter with 1 x 30A Clamp-On CT (Range:100mA-30A ±1%)
R718NL17 Wireless Light Sensor and 1-Phase Current Meter with 1 x 75A Clamp-On CT (Range:100mA-75A ±1%)
R718NL115 Wireless Light Sensor and 1-Phase Current Meter with 1 x 150A Clamp- On CT (Range:1A-150A ±1%)
R718NL125 Wireless Light Sensor and 1-Phase Current Meter with 1 x 250A Clamp- On CT (Range:1A-250A ±1%)
R718NL163 Wireless Light Sensor and 1-Phase Current Meter with 1 x630A Clamp- On CT (Range:5A-630A ±1%)
*The three CT current models — R718NL115, R718NL125, and R718NL163 report 0A when the current is less than 1A.
All other R718NL1 models report 0A when the current is less than 0.1A.

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.

Appearance

Main Features

• Compatible with LoRaWAN protocol
• 2 sections ER14505 3.6V Lithium AA battery
• 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.

Set up Instruction

On/Off

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. 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 Joinin

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)| For the first two minutes: the device will wake up every 15 seconds to send a join request.
After two minutes: the device will enter sleep mode and wake up every 15 minutes to send a join request. Note: It is suggested to remove the batteries if the device is not in use to save power.
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 for 20 times: success The green indicator light remains off: fail
---|---
Press the function key once (press the key briefly and release the key within 500ms)| 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.
---|---
The device is turned 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

Data Report

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:
Maximum time: Max Interval =30 min (1800 s)
Minimum time: Min Interval =30 min (1800 s)
CurrentChange:0x0064 (100 mA)
IlluminanceChange: 0x0064 (100 Lux)
*Please configure more than 30 seconds

Light sensor support 3 ranges of Illuminance:
0x00, 3~65000 Lux (default)
0x01, 3~130000 Lux
0x02, 3~220000 Lux

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.
3. If MinTime configuration less than 30 seconds, it will configure 30 seconds.
4. R718NL1 series would take about 15 seconds for the CT to sample and process the collected value, If the current changes frequently, the sampling result might be wrong.

Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver http://loraresolver.netvoxcloud.com:8888/page/index to resolve uplink data.

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

Example of Report configuration
FPort ：0x07

CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)

Description| Device| CmdID| Device
Type| NetvoxPayLoadData
---|---|---|---|---
ConfigReportReq| R718NL1| 0x01| 0x98| MinTime
(2bytes Unit:s)| MaxTime
(2bytes Unit:s)| CurrentChange
(2byte Unit:1mA)| Illuminancechange
(2bytes Unit:1Lux)| Reserved
(1Bytes,Fixed 0x00)
ConfigReportRsp| 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)| Illuminancechange
(2bytes Unit:1Lux)| Reserved
(1Bytes,Fixed 0x00)

1. Configure report parameters MinTime = 1min, MaxTime = 1min, CurrentChange=100mA, IlluminanceChange= 100Lux Downlink: 0198003C003C0064006400
   The device returns:
   8198000000000000000000 (Configuration succeeded)
   8198010000000000000000 (Configuration failed)

2. Read device configuration parameters
   Downlink: 0298000000000000000000
   The device returns: 8298003C003C0064006400 (current device configuration parameters)

Report Current and Illuminance Data Example

R718NL1| 0x98| 0x01| Battery (1Byte, unit:0.1V)| Current (2Bytes, Unit:1ma)| Multiplier(1Byte), the real current should convert with Current* Multiplier| Illuminance (4Bytes, unit:1Lux)
---|---|---|---|---|---|---

FPort:6 Report Data: 01980124 03E8 01 00000003
Actual Current Value = Current*Mulitplier
When illuminance less than 3 lux, the reported value is 3 lux.

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 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.

Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.

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.

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 live and neutral wires, and take out the live wire separately and start the measurement according to the wiring below.

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.

1. The single-phase current detector (R718NL1) has a built-in magnet (as the figure 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.

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.

4. The single-phase current detector (R718NL1) takes 15  seconds to sample the current, that is, the device startssampling 15 minutes before the arrival of MinTime. If the current value of the sample is relatively compared with the current value reported last time, it exceeds the set value (default value 100mA), when the MinTime is reached,  the current value of the current sample is immediately reported.
   If the current change does not exceed the default value, the data will be reported regularly according to Maxtime.
   Short press the [Key] of the device to start sampling data and report the data about 15 seconds after pressing the key.
   Note: MinTme cannot be set less than 30 seconds. MaxTime must be set greater than Min Time.

The single-phase current detector (R718NL1) is suitable for the following scenarios:

• School
• Factory
• The mall
• Office building
• Smart building

Where the electrical data of the equipment needs to be detected.

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.

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.

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.

References

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