netvox R718CT User manual

Mode：R718CT/CK/CR
Wireless Thermocouple Sensor for Type T/K/R
Wireless Thermocouple Sensor for
Type T/K/R
R718CT/CK/CR
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 .............................................................................................................4
4. Set up Instruction........................................................................................................5
5. Data Report.................................................................................................................6
5.1 Example of Report configuration.......................................................................7
5.2 Example of Temperature Calibration..................................................................8
5.3 Example for MinTime/MaxTime logic...............................................................9
6. Installation ................................................................................................................11
7. Information about Battery Passivation.....................................................................12
7.1 To determine whether a battery requires activation..........................................12
7.2 How to activate the battery...............................................................................12
8. Important Maintenance Instruction ..........................................................................13

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1. Introduction
R718CK: The detecting range of R718CK is -40 °C~ +375°C.
R718CK has the characteristics of good linearity, bigger thermal electromotive force, high sensitivity
and stability.
R718CT: The detecting range of R718CT is -40 °C~ +125°C.
R718CT is more stable when detecting the temperature range of -40°C~0°C.
R718CR: The detecting range of R718CR is 0°C ~ +1100°C.
R718CR has the best accuracy and stability. R718CR has the characteristics of wide detecting
temperature range, long lifespan, stable thermal electromotive force, as well as good oxidation
resistance.
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.

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2. Appearance
Indicator
Function Key
Thermocouple Sensor

4
3. Main Features
⚫Apply SX1276 wireless communication module
⚫2 section of ER14505 battery in parallel (AASIZE 3.6V / section)
⚫Main body IP rating: IP65/IP67 (optional)
⚫Thermocouple Sensor IP rating: K Type-IP60, T Type-IP65, R Type-IP60
⚫The base is attached with a magnet that can be attached to a ferromagnetic material object
⚫Thermocouple detection
⚫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
⚫Improved power management for longer battery life
Battery Life:
⁻Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
⁻At this website, users can find battery life time for variety models at different configurations.
1. Actual range may vary depending on environment.
2. Battery life is determined by sensor reporting frequency and other variables.

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4. Set up Instruction
On/Off
Power on
Insert batteries. (users may need a flat blade 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 green indicator flashes for 20
times.
Power off
Remove Batteries.
Note
1. Remove and insert the battery; the device is at off state by default.
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 1st -5th second 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 to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
(not at factory setting)
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: 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.

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Low Voltage Warning
Low Voltage
3.2V
5. Data Report
Data report configuration and sending period are as following:
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
The device will immediately send a version packet report along with an uplink packet including temperature
and battery voltage.
The device sends data in the default configuration before any configuration is done.
Default setting:
MaxTime : Max Interval = 15 min = 900s
MinTime : Min Interval = 15 min = 900s
BatteryChange: 0x01 (0.1V)
TemperatureChange:0x0064 (10°C)
Note:
The device report interval will be programmed based on the default firmware which may vary.
The interval between two reports must be the minimum time.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/page/index to resolve uplink data.

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5.1 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)
ConfigReport
Req
R718CK
R718CT
R718CR
0x01
0x91
0x92
0x93
MinTime
(2bytes Unit:s)
MaxTime
(2bytes Unit:s)
BatteryChange
(1byte Unit:0.1v)
Temperature
Change
(2byte
Unit:0.1°C)
Reserved
(2Bytes,Fixed
0x00)
ConfigReport
Rsp
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(1b
yte Unit:0.1v)
Temperature
Change
(2byte
Unit:0.1°C)
Reserved
(2Bytes,Fixed
0x00)
(1) Configure R718CK report parameters:
MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v、TemperatureChange = 1°C
Downlink：0191003C003C01000A0000 3C(Hex) =60(Dec) 0A(Hex) = 10(Dec)
Response：
8191000000000000000000 (Configuration success)
8191010000000000000000 (Configuration failure)
(2) Read Configuration:
Downlink：0291000000000000000000
Response：
8291003C003C01000A0000 (Current configuration)

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5.2 Example of Temperature Calibration
Port:0x0E
Description
CmdID
SensorType
PayLoad (Fix =9 Bytes)
SetGlobal
CalibrateReq
0x01
0x01
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Multiplier
(2bytes,
Unsigned)
Divisor
(2bytes,
Unsigned)
DeltValue
(2bytes,Signed)
Reserved
(2Bytes,Fixed
0x00)
SetGlobal
CalibrateRsp
0x81
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Status
(1Byte,0x00_success)
Reserved
(7Bytes,Fixed 0x00)
GetGlobal
CalibrateReq
0x02
Channel
(1Byte,0_Channel1,1_Channel2,etc)
Reserved
(8Bytes,Fixed 0x00)
GetGlobal
CalibrateRsp
0x82
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Multiplier
(2bytes,
Unsigned)
Divisor
(2bytes,
Unsigned)
DeltValue
(2bytes,Signed)
Reserved
(2Bytes,Fixed
0x00)
ClearGlobal
CalibrateReq
0x03
Reserved
(10Bytes,Fixed 0x00)
ClearGlobal
CalibrateRsp
0x83
Status
(1Byte,0x00_success)
Reserved
(9Bytes,Fixed 0x00)
SensorType : Temperature 0x01
(1) Temperature calibration:
If the temperature the R718CX detects is 16° and the actual temperature is 26°, it means the
calibration we want to make is +10°
SensorType =0x01, Channel 1= 0x00, Multiplier = 0x0001, Divisor =0x0001, DeltValue=0x0064
Downlink：0101000001000100640000
Response：
8101000000000000000000 (Configuration success)
8101000100000000000000 (Configuration failure)
(4) Check whether the temperature calibration
Downlink：0201000000000000000000
Response：8201000001000100640000（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(MinTime) Sleeping(MinTime)
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
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
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V

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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
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
3.6V
Does not report
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.

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6. Installation
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 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.
1. The Wireless Thermocouple Sensor (R718CK/T/R)
has a built-in magnet (see Figure 1 below). When
installed, it can be attached to the surface of an object
with iron which is convenient and quick.
To make the installation more secure, use screws
(purchased) to secure the unit to a wall or other surface
(see Figure 2 below).
Note:
Do not install the device in a metal shielded box or in an
environment with other electrical equipment around it to
avoid affecting the wireless transmission of the device.
R718CK/T/R is suitable below scenarios:
⚫Oven
⚫Industrial control equipment
⚫Semiconductor industry
2. When R718CK/T/R is compared with the
last reported values, the temperature change
is exceeded 10°C (default),it will report
values at the MinTime interval;
If does not exceeded 10°C (default) ,it will
report values at the MaxTime interval;
Temperature probe

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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.