netvox Wireless Light Sensor and 1-Phase Current Meter R718NL1 User Manual
- June 6, 2024
- netvox
Table of Contents
Model： R718NL1
Wireless Light Sensor and 1-Phase Current Meter
Wireless Light Sensor and
1-Phase Current Meter
R718NL1
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 extends 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 LoRaWAN ™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 lifetime for varied models at different configurations.
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 the green indicator flashes 20 times.
Power off| Remove Batteries.
**** Note| 1. The device will be off after removing the battery and
inserting 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)|
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
service 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 report change exceeds the 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 the request. After two mins: enter sleeping mode
and wake up every 15 minutes to send the request. Note: Suggest removing
batteries if the device is not used. Suggest checking device verification on
the gateway.
Low Voltage Warning
| Low Voltage | 3.2 V |
|---|
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) *Please configure more than 30
seconds
CurrentChange:0x0064 (100 mA)
IlluminanceChange: 0x0064 (100 Lux)
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 the Minime configuration is 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://www.netvox.com.cn:8888/page/index to resolve uplink data.
Data report configuration and sending period are as follows:
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
port： 0x07
| Bytes | 1 Byte | 1 Byte | Var(Fix =9 Bytes) |
|---|---|---|---|
| CmdID | DeviceType | NetvoxPayLoadData |
CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)
Description| Device| CmdID| Device
Type
| NetvoxPayLoadData| |
---|---|---|---|---|---|---
ConfigReportReq| R718NL1| Ox01| 0x98| Minime
(2bytes Unit:s)
| Maxime
(2bytes Unit:s
| CurrentChange
(2byte Unit: 1
| mA)| Illuminancechange
(2bytes Unit: 1 Lux)
| Reserved
(1 Byte, Fixed Ox00)
|
ConfigReportRsp| 0x81| Status
(0x00_success
| Reserved
(8Bytes, Fixed Ox00)
|
ReadConfig
ReportReq
| 0x02| Reserved
(9Bytes, Fixed Ox00)
|
Minime
(2bytes Unit:s
| Maxime
(2bytes Unit:s
| CurrentChange
(2byte Unit: 1 mA)
| Illtiminancechange
(2bytes Unit: 1 Lux)
| Reserved
(1 Byte, Fixed Ox00)
|
ReadConfig
ReportRsp
| 0x82
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 was less than 3 lux, the reported value is 3 lux.
Example for MinTime/Maxime 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 Maxime
(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 :
- The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect data.
- 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 Maxime interval.
- We do not recommend setting 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.
- Whenever the device sends a report, no matter the result of data variation, button push, or Maxime interval, another cycle of MinTime/Maxime calculation is started.
6. Installation
This product comes with a 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, the 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 starts sampling 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 Minime 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 Maxime.
Short press the [Key] of the device to start sampling data and report the data
about 15 seconds after pressing the key.
Note: Minime cannot be set in less than 30 seconds. Maxime 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 a 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 a 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.
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.
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
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 a dusty or dirty environment. It might damage its detachable parts and electronic components.
- Do not store the device under excessive heat conditions. 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.