netvox R311G User manual

Model：R311G
Wireless Light Sensor
Light Sensor
User Manual

1
Table of Content
1. Introduction................................................................................................................................................................ 2
2. Appearance................................................................................................................................................................. 3
3. Main Features............................................................................................................................................................. 3
4.Set up Instruction.........................................................................................................................................................4
4.1 Power on and Turn on / off...............................................................................................................................4
4.2 Join Into Lora Network.................................................................................................................................... 4
4.3 Function Key.................................................................................................................................................... 4
4.4 Data Report.......................................................................................................................................................4
5. Restore to Factory Setting.......................................................................................................................................... 5
6. Sleeping Mode............................................................................................................................................................5
7. Low Voltage Alarming............................................................................................................................................... 6
8. MyDevice Monitoring Interface Demonstration........................................................................................................6
9. Important Maintenance Instruction............................................................................................................................ 6

2
1. Introduction
R311G is a long-distance light sensor based on the LoRaWAN open protocol (Class A).
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.

3
2. Appearance
3. Main Features
Compatible with LoRaWAN
2 section 3V CR2450 button battery powered
Report current surrounding illuminance
Easy set up and installation
Indicator
Light sensor
Base
Function Key
Function Key

4
4.Set up Instruction
4.1 Power on and Turn on / off
(1) Power on: Insert batteries: open the battery cover (users may need a flat blade screwdriver to
open); insert two sections of 3V CR2450 button batteries and close the battery cover.
(2) Turn on: If the device had never joined in any network or at factory setting mode, after
powering on, the device is at off mode by default setting. Press any function key and release to turn
on the device. The green indicator will flash once to show that R311G is turned on.
(3) Turn off: Press and hold both function keys for 5 seconds till the green indicator flashes quickly
and release. The green indicator will flash 20 times to show that R311G is turned off.
Note:
(1) The interval between shutting down twice or power off/on is suggested to be about 10 seconds to
avoid the interference of capacitor inductance and other energy storage components.
(2) Do not power on the device and press any function key at the same time, otherwise it will enter
engineering test mode.
4.2 Join Into Lora Network
To join R311G into LoRa network to communicate with LoRa gateway. The network operation is as
following:
(1) If R311G had never joined any network or at factory setting mode, turn on the device; it will
search an available LoRa network to join. The green indicator will stay on for 5 seconds to show it
joins into the network, otherwise, the green indicator will be off.
(2) If R311G had been joined into a LoRa network, remove and insert the batteries; the green
indicator will stay on for 5 seconds to show it joins into the network.
4.3 Function Key
(1) Press and hold both function keys for 5 seconds to reset to factory setting. After restoring to
factory setting successfully, the green indicator will flashes quickly 20 times.
(2) Press any function key to turn on the device and it will send a data report.
4.4 Data Report
When the device is powered on and activated, it will immediately send a version package.
Data will be reported once per hour by default setting.
Maximum time: 3600s
Minimum time: 3600s

5
Default reportchange:
Battery ---- 0x01 (0.1V)
Illuminance----50 lux
Note: MinInterval is the sampling period for the Sensor. Sampling period >= MinInterval.
Data report configuration and sending period are as following:
5. Restore to Factory Setting
R311G saves data including network key information, configuration information, etc. To restore to
factory setting, users need to execute below operations.
1. Press and hold both function keys for 5 seconds till the green indicator flashes and then release;
LED flashes quickly 20 times.
2. R311G will stay off after restoring to factory setting. Press function key to turn on R311G and to
join a new LoRa network.
6. Sleeping Mode
R311G is designed to enter sleeping mode for power-saving in some situations:
(A) While the device is in the network → the sleeping period is 3 minutes. (During this period,
if the reportchange is larger than setting value, it will wake up and send a data report).
(B) When it is not in the network → R311G will enter sleeping mode and wake up every 15
seconds to search a network to join in the first two minutes. After two minutes, it will wake up
every 15 minutes to request to join the network.
If it’s at (B) status, to prevent this unwanted power consumption, we recommend that users
remove the batteries to power off the device.
Min Interval
(Unit:second)
Max Interval
(Unit:second)
Reportable
Change
Current Change≥
Reportable Change
Current Change ＜
Reportable Change
Any number
between 1~65535
Any number
between 1~65535 Can not be 0. Report per Min Interval
Report
per Max Interval

6
7. Low Voltage Alarming
The operating voltage threshold is 2.4V. If the voltage is lower than 2.4V, R311G will send a
low-power report to the Lora network.
8. MyDevice Monitoring Interface Demonstration
9. Important Maintenance Instruction
This device is NOT truly waterproof/ resistant and is for indoor use.
Please keep the device in a dry place. Precipitation, humidity, and all types of liquids or
moisture can contain minerals that corrode electronic circuits. In cases of accidental liquid spills
to a device, please leave the device dry properly before storing or using.
Do not use or store the device in dusty or dirty areas.
Do not use or store the device in extremely hot temperatures. High temperatures may damage
the device or battery.
Do not use or store the device in extremely cold temperatures. When the device warms to its
normal temperature, moisture can form inside the device and damage the device or battery.
Do not drop, knock, or shake the device. Rough handling would break it.
Do not use strong chemicals or washing to clean the device.
Do not paint the device. Paint would cause improper operation.
Handle your device, battery, and accessories with care. The suggestions above help you keep your
device operational. For damaged device, please contact the authorized service center in your area.