netvox R72615A User manual

Wireless CO2/Temperature/Humidity Sensor
Model: R72615A
Wireless CO2/
Temperature/Humidity Sensor
R72615A
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 Content
1. Introduction.......................................................................................................................................................................................2
2.Appearance........................................................................................................................................................................................3
3. Main Features ...................................................................................................................................................................................3
4.Set up Instruction...............................................................................................................................................................................4
5. Data Report.......................................................................................................................................................................................5
6. Installation ........................................................................................................................................................................................8
7. Information about Battery Passivation...........................................................................................................................................10
7.1 To determine whether a battery requires activation................................................................................................................10
7.2 How to activate the battery.....................................................................................................................................................10
8. Important Maintenance Instruction ................................................................................................................................................11

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1. Introduction
R72615A is a ClassA type device based on the LoRaWAN open protocol.
R72615A is connected to a variety of sensors. As detectors for CO2, temperature and humidity, the values collected by the sensor
are reported to the corresponding gateway.
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.

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Battery Pack
2. Appearance
3. Main Features
Compatible with LoRaWAN
7.2V battery power supply
Simple operation and setting
CO2 and temperature and humidity detection
Adopt SX1276 wireless communication module
Temperature and Humidity Sensor
CO2 Sensor
Indicator
Function Key
DC in
Batteries (ER14505x8 pcs)

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4.Set up Instruction
On/Off
Power on Connect to battery pack
Turn on Connect the battery pack directly to boot
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 battery pack
Note:
1. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
2. The engineering test requires to write the engineering testing software separately.
Network Joining
Never joined the network
Turn on the device to search the network to join.
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 to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
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: The green indicator flashes once,R72615A will send first data
after 180 seconds then send second data after 30 seconds again.
The device is not in the network: green indicator remains off
Restore to Factory Setting
Description
The R72615A carries a power-off network information saving memory function. This feature is
turned off by default, that is, it will be re-joined every time it is powered back on. The function
can be turned on by the ResumeNetOnOff command. At this time, each time the power is
rewritten, the last joining information will be recorded (including saving the network address
information assigned to it, etc.) and it will not be re-joined again. If you want to join a new
network, you need to perform a factory setting operation first.
Operation method
1. Press and hold the button for 5 seconds and release (the button is released when the LED
flashes), and the LED flashes 20 times;
2. The device automatically restarts to start re-joining.

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Low Voltage Warning
Low Voltage 6.8V
5. Data Report
The device will immediately send a version package report and after 180s send two uplink packets with temperature and
humidity, CO2 and battery voltage at 30s interval.
The device sends data in the default configuration before any configuration is done.
Default setting:
ReportMaxTime: 720min
ReportMinTime: 30s (Interval time of two packets)
*The ReportMaxTime must greater than or equal to ReportType count *ReportMinTime + 10 (units: seconds)
* ReportType count = 2
* It would take about 180 seconds for the CO2 sensor to sample and process the collected CO2value after being powered
* It would take about 180 seconds for the CO2 sensor to sample and process the collected CO2value if you were to
manually trigger the device by pressing the button, please be patient.
Note:
1. The device report interval will be programmed base on the default firmware which may vary.
2. The interval between two reports must be the maximum time
3. R72615A does not support the ReportChange so the configuration is invalid.
4. Report cycle will be based on ReportMaxTime period when sending data packet (beginning to the end of the first data
as a period)
5. The device also supports Cayenne's TxPeriod cycle configuration instructions. Therefore, the device can also perform a
report according to the cycle time of the TxPeriod value; and whether the report period is ReportMaxTime or TxPeriod
will be depending on which cycle time is configured last time
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://loraresolver.netvoxcloud.com:8888/page/index to resolve uplink data.

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5.1 Example of ReportDataCmd
FPort：0x06
Bytes 1 1 1 Var(Fix=8 Bytes)
Version DeviceType ReportType NetvoxPayLoadData
Version– 1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType– 1 byte – Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
Example of R72615A Uplink:
Packet #1: 010907480FA0FFFFFFFF00
1st byte (01): Version
2ndbyte(09): DeviceType 0x09 －R726 Series
3rdbyte (07): ReportType
4th byte (48): Battery－7.2v , 48 Hex=72 Dec 72*0.1v=7.2v
5th6th byte (0FA0): CO2－400PPM, 0FA0 Hex=4000 Dec 4000*0.1PPM=400PPM
7th 8th byte (FFFF): NH3 data is not available
9th10th byte (FFFF): Noise data is not available
11th byte (00): Reserved
Packet #2: 01090C4809C41B58FFFF00
1st byte (01): Version
2nd byte (09): DeviceType 0x09 －R726 Series
3rd byte (0C): ReportType
4th byte (48): Battery－7.2v , 48 Hex=72 Dec 72*0.1v=7.2v
5th 6th byte (09C4): Temperature－25°, 09C4 Hex=2500 Dec 2500*0.01°=25°
7th 8th byte(1B58): Humidity－70% , 1B58 Hex=7000 Dec 7000*0.01%=70%
9th 10th byte (FFFF): Wind Speed data is not available
11th byte (00): Reserved
Device Device
Type
Report
Type NetvoxPayLoadData
R726 series
(R72615A) 0x09 0x07
Battery
(1Byte, unit:0.1V)
CO2
(2Byte ,0.1ppm)
NH3
(2Byte ,0.1ppm)
Noise
(2Byte ,0.1db)
Reserved
(1Byte,fixed 0x00)
0x0C
Battery
(1Byte, unit:0.1V)
Temperature
(Signed2Bytes,unit:0.01°C)
Humidity
(2Bytes,unit:0.01%)
WindSpeed
(2Bytes,unit:0.01m/s)
Reserved
(1Byte,fixed 0x00)

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5.2 Example of ConfigureCmd
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)
(1) Configure the R72615A parameters: MinTime = 30s, MaxTime = 3600s
Downlink: 0109001E0E100000000000
Devices return:
8109000000000000000000 (the configuration is successful)
8109010000000000000000 (the configuration is failed)
(2) Read the R72615Adevice configuration parameters
Downlink: 0209000000000000000000
Devices return:
8209001E0E100000000000 (device current configuration parameter)
Description Device CmdID DeviceType NetvoxPayLoadData
ConfigReportReq
R72615A
0x01
0x09
MinTime
(2bytes Unit:s)
MaxTime
(2bytes Unit:s)
Reserved
(5Bytes,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) Reserved

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6. Installation
1. Due to transportation reasons, the R72615A and the battery pack will be screwed in advance at the factory.
Please unscrew the screws before installation (red circle below).
3. R72615A uses battery pack to supply power.
Please unscrew the screws at the four corners of the battery pack before installation and insert 8 ER14505 3.6V batteries into
the battery compartment (4 sections on the front and 4 sections on the back side) as shown in Figure 1&2
Figure 1 Battery PCB front Figure 2 Battery PCB back
Note:
(1)Please pay attention the positive and negative poles of the battery.
(2)The battery PCB board has electronic parts is front side, when closing the cover, please pay attention the battery pack
and bottom cover's power on the same side.

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4. The device and battery pack can be installed on the wall or other object surface.
Note: Do not install the device in a metal shielded box or environment with other electrical equipment around it to avoid
affecting the wireless transmission of the device.
5. R72615A will report data regularly according to MaxTime(default:720 min), and take about 180 seconds for the CO2sensor to
sample and process the collected CO2value. The packets have temperature, humidity, CO2and battery voltage value.
Note: Max Time can be modified by the downlink command, and recommended not to set the time too short to avoid
battery power consumption.
6. R72615A is suitable for the following scenarios:
Farm
Pig farm
Environmental monitoring
Housing screw
Screws Fixed
Battery Pack
DC in

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7. 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 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.
7.1 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.
7.2 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

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8. 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.