Netvox R720E Bedienungsanleitung

Model：R720E

Wireless TVOC /Temperature /Humidity Sensor

Wireless TVOC /

Temperature / Humidity Sensor

R720E

User Manual

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.

Table of Content

1. Introduction.............................................................................................................................................................2

2. Appearance..............................................................................................................................................................2

3. Main Features..........................................................................................................................................................3

4. Set up Instruction ....................................................................................................................................................4

5. Data Report .............................................................................................................................................................5

6. Installation...............................................................................................................................................................9

7. Information about Battery Passivation .................................................................................................................10

8. Important Maintenance Instruction.......................................................................................................................11

1. Introduction

R720E is the temperature, humility and TVOC detection device which is Class A device of NETVOX based on

LoRaWANTM protocol.

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.

2. Appearance

Indicator

Function Key Built-in TVOC Sensor

3. Main Features

Adopt SX1276 wireless communication module

2 ER14505 lithium batteries AA size (3.6V / section) in parallel

TVOC concentration, temperature, and humidity detection

The base is attached with a magnet that can be attached to a ferromagnetic material object

Protection class IP65

Compatible with LoRaWANTM Class A

Frequency hopping spread spectrum

Configuration parameters can be configured via a third-party software platform, data can be read and alerts can be set via

SMS text and email (optional)

Applicable to third-party platforms: 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.

4.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, and the green indicator flashes 20 times.

Power off Remove Batteries.

Note:

1. Remove and insert the battery; the device is at off state by default. Press and hold

the function key for 3 seconds till the green indicator flashes once to turn on the device.

2. On/off interval is suggested to be about 10 seconds to avoid the interference of

capacitor inductance and other energy storage components.

3. At the first 5 seconds after power on, the device will be in 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

Turn on the device to search the previous network.

The green indicator stays on for 5 seconds: success

The green indicator remains off: fail

Fail to join the network Suggest to check the device verification information on the gateway or consult your platform

server provider.

Function Key

Press and hold for 5 seconds

Restore to factory setting / Turn off

The green indicator flashes 20 times: success

The green indicator remains off: fail

Press once The device is in the network: green indicator flashes once and sends a report

The device is not in the network: green indicator remains off

Sleeping Mode

The device is on and in the

network

Sleeping period: Min Interval.

When the reportchange exceeds setting value or the state changes: send a data report according

to Min. Interval.

Low Voltage Warning

Low Voltage 3.2V

5. Data Report

The device will immediately send a version packet report and a data report including voltage of the battery and TVOC value.

The device sends data according to the default configuration before any other configuring.

Default Setting:

Maximum time: Max Interval =15 min

Minimum time: Min Interval =15 min * Minimum time should not be less than 4min.

Battery Change =0x01 (0.1V)

TVOC Change = 0x012C (300 ppb)

TVOC Measurement Range

0 ppb to 60000 ppb

Excellent 0 to 65 ppb

Good 65 to 220 ppb

Moderate 220 to 660 ppb

Poor 660 to 2200 ppb

Unhealthy 2200 to 60000 ppb

Note:

1. R720E needs to work for 13 hours after the first power-on.

(The sensor needs to be calibrated automatically during the 13 hours, and the data will be biased during this period. The

accurate data shall prevail after 13 hours.At present, this step has been completed before the shipment.)

2. On the condition that the sensor can operate normally, the read data is valid after the device is powered off and has

been turned on again for 20 minutes.

(The 20 minutes is the time for the sensor to enter a stable state.)

3. The device will report 0xFFFF when the sensor is damaged, the initiation fails, and the device fails to read the data

three times continuously after warming up.

*The above process will be completed automatically after the device is turned on; therefore, users do not need to

operate by self.

The data parsing reported by the device is referenced by the Netvox LoraWANApplication Command document and

http://loraresolver.netvoxcloud.com:8888/page/index

Data report configuration and sending period are as following:

Example of ConfigureCmd

FPort：0x07

Bytes 1 Byte 1 Byte Var (Fix =9 Bytes)

CmdID DeviceType NetvoxPayLoadData

Config

ReportReq

R720E

0x01

0xA5

MinTime

(2bytes Unit: s) MaxTime

(2bytes Unit: s) BatteryChange

(1byte Unit:0.1v) TVOC Change

(2bytes Unit：1ppb)

Reserved

(2Bytes, Fixed

0x00)

Config

ReportRsp 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) BatteryChange

(1byte, Unit: 0.1v) TVOC Change

(2bytes, Unit: 1ppb) Reserved

(Bytes, Fixed 0x00)

ResetTVOC

BaseLineReq 0x03 Reserved

(9Bytes, Fixed 0x00)

ResetTVOC

BaseLineRsp 0x83 Status

(0x00_success) Reserved

(8Bytes, Fixed 0x00)

(1)Command Configuration:

MinTime = 5min, MaxTime = 5min, BatteryChange = 0.1v, TVOC Change=100ppb

Downlink：01A5012C012C0100640000

Response：

81A5000000000000000000（Configuration success）

81A5010000000000000000（Configuration failure）

* When min time < 4min, Configuration fails

(2)Read Configuration:

Downlink：02A5000000000000000000

Min Interval

(Unit: second)

Max Interval

(Unit: second) Reportable Change Current Change ≥

Reportable Change

Current Change＜

Reportable Change

Any number

≥240

Any number between

240~65535 Can not be 0 Report

per Min Interval

Report

per Max Interval

Response：

82A5012C012C0100640000（Current configuration）

(3)Calibrate the baseline:

After the configuration is successful, users can re-acquire and set the baseline value after 13 hours.

Downlink：03A5000000000000000000

Response：

83A5000000000000000000（Configuration success）

83A5010000000000000000（Configuration failure）

Example of ReportDataCmd

FPort：0x06

Bytes 1 Byte 1 Byte 1 Byte 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

ReportType – 1 byte –the Presentation of the NetvoxPayLoadData，according the devicetype

NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)

Device

Type

Report

Type NetvoxPayLoadData

R720E

0xA5 0x01 Battery

(1Byte, Unit: 0.1V) TVOC

(2Bytes, 1ppb) Temperature

(Signed2Bytes, Unit: 0.01°C)

Humidity

(2Bytes, Unit: 0.01%) Reserved

(1Byte, fixed 0x00)

Uplink：01A5012400290A4B11B400

TVOC= 0029 Hex = 41 Dec , 41ppb

Temperature= 0A4B Hex = 2635 Dec , 2635*0.01° = 26.35 °C

Humidity= 11B4 Hex = 4532 5 Dec , 4532*0.01% = 45.32 %

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(MinTime) Sleeping(MinTime)

Wake up and collects data

REPORTS 3.6V

Wakes up and collects data

REPORTS 3.6V

Wakes up and collects data

REPORTS 3.6V

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.

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.

MaxTime

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

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.

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

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 3.6V

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

REPORTS 3.5V

Wakes up and

collects data

3.6V

Does not report

Users push the button,

REPORTS 3.5V.

Recalculate MaxTime.

6. Installation

1. R720E has a built-

in magnet (the dotted line in the figure below).

When installing, the sensor can be attached to the surface of iron

objects.

2. If it is installed on a wall or other object without iron, users can

install another piece of iron on the wall or other object, and then

attach the sensor to the iron.

Note:

Do not install the device in a metal shielded box or an

environment with other electrical equipment around to avoid

affecting the wireless transmission signal of the device.

R720E is suitable below scenarios:

Residential

Shopping mall

Station

School

Airport

Construction site

The place needs to detect the TVOC, temperature, or

humidity.

4. R720E detects according to Min Time. When the detected

TVOC value or battery voltage is compared with the last

report, the value exceeds the set value. (Default TVOC

Value: 300ppb; Default Battery Voltage: 0.1V) If the

TVOC concentration exceeds 300ppb or the battery

voltage exceeds 0.1V, the currently detected TVOC,

temperature, and humidity will be sent.

5. If the variation of TVOC concentration or battery voltage

does not exceed the set value, the data is reported

regularly according to the Max Time.

Note: Min Time and Max Time defaults 15 minutes.

传感器

R720E

地面

安装示意图

R720E

Installation Diagram

Ground

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