netvox RA02D1 User manual

Wireless Liquefied Petroleum Gas Detector (DC-powered)
RA02D1
Wireless Liquefied Petroleum
Gas Detector
RA02D1
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.

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Table of Contents
1. Introduction....................................................................................................................................... 3
2. Appearance........................................................................................................................................4
3. Features .............................................................................................................................................4
4. Set up Instruction...............................................................................................................................5
5. Data Report .......................................................................................................................................6
5.1 Example of ReportDataCmd.......................................................................................................7
5.2 Example of Report Configuration...............................................................................................8
5.3 Example for MinTime/MaxTime logic .......................................................................................9
6. Important Maintenance Instruction..................................................................................................10

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1. Introduction
RA02D1 is a liquefied petroleum gas detector which is the Class C device based on LoRa private protocol of Netvox. It is
compatible with the Netvox LoRa protocol.
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, and
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. This device has been certified by the LoRa Alliance and is allowed to use the following
logo on the product:

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2. Appearance
3. Features
Power supplied by 12V power adapter
Liquefied Petroleum Gas (LPG) and temperature detection
Compatible with LoRa Class C
Frequency hopping spread spectrum
Applicable to third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
Indicator
Function Key Test Key
DC in
Fixed Chassis

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4. Set up Instruction
On/Off
Turn on Plug in the power adapter.
Restart
(back to factory setting) Press the function key for 5 seconds and the green indicator will flash 20 times.
Power off Unplug the device.
Note
1. The device will be off by default when the power adapter is unplugged.
2. 5 seconds after powering on, the device will enter the engineering test mode.
3. On/off interval is suggested to be about 10 seconds to avoid the interfere
nce of capacitor
inductance and other energy storage components.
4. Please do not press any buttons while the device is plugging in or it will be in the
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
(not back to factory setting)
Turn on the device to search the previous network.
The green indicator stays on: Success
The green indicator remains off: Fail
Fail to join the network Please check the device verification information on the gateway or consult your platform server
provider.
Function Key
Press and hold the function key
for
5 seconds
Restart the device
The green indicator flashes 20 times: Success
The green indicator remains off: Fail
Short press the function key
The device is in the network:
The green indicator flashes once and sends a data packet.
The device is not in the network:
The green indicator remains off.

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5. Data Report
The device will immediately send a version packet report and a data packet with the LPGAlarm, HighTempAlarm, and
temperature.
Data will be reported by default setting before any configuration.
Max Time: Max Interval
Min Time: Min Interval
LPGAlarm Trigger:
The device samples the concentration of LPG every 30 seconds after it is on.
LPG Concentration > 5% LEL The red indicator flashes and the buzzer sounds.
The device sends a report. (LPGAlarm bit = 1)
LPG Concentration < 2% LEL The red indicator stops flashing and the buzzer stops sounding.
The device sends a report.
HighTempAlarm Trigger:
1 minute after the device is in the network, the temperature would be sampled.
Temperature > 60°C The red indicator flashes and the buzzer sounds.
The device sends a report. (HighTempAlarm bit = 1)
Temperature < 60°C The red indicator stops flashing and the buzzer stops sounding.
The device sends a report.
Note: (1) Users need to preheat the device for 48 hours to stabilize the sensitivity if it is used for the first time.
(2) RA02D1 can still detect LPG when it is not in the network.
Please visit Netvox Lorawan Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/cmddoc to resolve uplink data.
Note: Data are reported based on default firmware (MaxTime).

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5.1 Example of ReportDataCmd
FPort: 0x06
Bytes 1 1 1 Var (Fix =9 Bytes)
CmdID DeviceType ReportType NetvoxPayLoadData
CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
ReportType – 1 byte – the presentation of the NetvoxPayLoadData , according to the devicetype
NetvoxPayLoadData– var bytes (Max=9bytes)
Tips
1. Battery Voltage:
If the battery is equal to 0x00, it means that the device is powered by a DC power supply.
2. Version Packet:
When Report Type=0x00 is the version packet, such as 01D6000A15202305150000, the firmware version is 2023.05.15.
3. Data Packet:
When Report Type=0x01 is the data packet.
4.Signed Value:
When the temperature is negative, 2's complement should be calculated.
Device Device
Type
Report
Type NetvoxPayLoadData
RA02D1 0x D6
0x00 SoftwareVersion
(1Byte) Eg.0x0A—V1.0
HardwareVersion
(1Byte)
DateCode
(4Bytes,eg 0x20170503)
Reserved
(2Bytes,fixed 0x00)
0x01
Battery
(1Byte,
unit:0.1V)
LPGAlarm
(1Byte
0:noalarm 1:alarm)
HighTempAlarm
(1Byte
0:noalarm 1:alarm)
Temperature
(Signed2Bytes,
unit:0.1°C)
Reserved
(3Bytes,fixed 0x00)
Example of Uplink: 01D601000100010E000000
1st byte (01): Version
2nd byte (D6): DeviceType 0xD6－RA02D1
3rd byte (01): ReportType
4th byte (00): Battery－0.0v, 00 (HEX) = 0 (DEC), 0*0.1v = 0.0v // DC power supply
5th byte (01): LPGAlarm－alarm
6th byte (00): HighTempAlarm－noalarm
7th –8th byte (010E): Temperature－27.0℃ 10E (HEX) = 270 (DEC), 270*0.1℃= 27.0℃
9th–11th byte (000000): Reserved

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5.2 Example of Report Configuration
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)
Description Device CmdID Device
Type NetvoxPayLoadData
ConfigReportReq
RA02D1
0x01
0xD6
MinTime (2bytes Unit:s) MaxTime (2bytes Unit:s) Reserved
(5Bytes,Fixed 0x00)
ConfigReportRsp 0x81 Status (0x00_success) Reserved
(8Bytes,Fixed 0x00)
ReadConfigReportReq 0x02 Reserved (9Bytes,Fixed 0x00)
ReadConfigReportRsp 0x82 MinTime (2bytes Unit:s) MaxTime (2bytes Unit:s) Reserved
(5Bytes,Fixed 0x00)
(1) Command Configuration
MinTime = 15min (0x384), MaxTime = 15min (0x384)
Downlink: 01D6038403840000000000
Response:
81D6000000000000000000 (Configuration success)
81D6010000000000000000 (Configuration failure)
(1) Read Configuration
Downlink: 02D6000000000000000000
Response:
82D6038403840000000000 (Current configuration)

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5.3 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
Sleeping (Min Time) Sleeping (Min Time)
1H 2H 3H
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.
MaxTime
Sleeping (MinTime)sleeping sleeping sleeping
0H 15th M 30th M 45th M 1H 2H
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
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
Wakes up and
collects data
REPORTS 3.5V
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.5V
Wakes up and collects data
REPORTS 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
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
3.6V
Does not report
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.
MaxTime

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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 change value 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.
6. 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.