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Replaced by
WSSFCEX-GHC | FW2
Manual for WSSFCEX-GHC | FW2
Replaced by
Item codes | FW Released Date | Changes Information |
|---|---|---|
WSSFCEX-GHC-01 | 18/11/2022 | Update payloads |
1
QUICK INSTALLATION GUIDE
1.1 Introduction
WSSFCEX-GHC is a Sigfox-ready sensor with Ex d explosion-proof approval. It has a built-in high-performance NDIR technology sensor to detect the flammable Hydrocarbon Gas concentration in the air. Ultra-low-power design and smart firmware allow the Wireless Sensor to run on a single battery for 5 years or more with 30 minutes update. It supports Sigfox zones RC1, RC2, RC3c, RC4, RC5, and RC6.
Typical applications: CH₄, C₂H₄, C₂H₆, C₃H₈, C₄H₁₀ leakage detection for Gas distribution station, Metering skid, Pressure reducing station...
How the sensor connect to system?
System components:
The end nodes are Sigfox-Ready Sensors or Actuators;
The Sigfox Base Stations (installed and operated by Sigfox Operator);
The Sigfox Back-End (Operated by Sigfox Company);
The Application Server is the destination software users want to utilize the data from/to Sigfox-Ready sensors/ actuators.
How do you set up the Sigfox-Ready device and get its data to the Application Software? Please follow these steps:
Contact the local Sigfox Operator to sign a Data plan contract. You will be provided an account;
Log in to the Sigfox Back-end by your own account then add the Sigfox-Ready Devices. Please follow the guidelines of Sigfox back-end;
Configure the callback or data forwarding from the Sigfox Back-end to the Application Software. Please follow the guidelines of Sigfox back-end;
Once the payload is on the Application server, decode data from Payload. Please check Section 1.9 for the Payload document.
1.2 Application Notes
For Applications
Ambient Air Quality Monitor, Gas Leakage Detection, Safety Monitoring
Notes
Diffusion holes of the sensor should be protected against the ingress of sprayed liquid or waterdrops.
The sensor is not intended to measure the target gas concentration contained in fluids.
Correct measurement is provided when the ambient temperature changes not faster than 0.6℃/ min.
1.3 When does device send Uplink messages?
The device will send uplink messages in the following cases:
Case 1: After power-up in the 60s, the device will send the first message called START_UP. The payload will tell the user the HW version, FW version, and current configuration of the device;
Case 2: Then, in every interval time (pre-configured), for example, 10 minutes, it will send the message called CYCLIC_DATA. The payload will tell the user the following data like measured values, battery level, and alarm status...
To change the cycle of data sending, you can change the value of the parameter: CYCLIC_DATA_PERIOD (default is 600 seconds).
Case 3: If ALARM_ENABLED=1, the device will send ALARM message immediately when device switches from Normal state to Alarm state. It will repeat sending ALARM messages in predefined ALARM_PERIOD time interval (default is 10 minutes) if the Alarm state still exist;
Case 4: During the commissioning, testing, or calibration sensor, the user can force the device to send the uplink message to get the data immediately. This message is called FORCE_DATA. The payload will provide data like raw measured value, scaled measured values, battery level, and alarm status... It can be forced by applying the magnet key on the reed switch in 1s;
Case 5: If users want to change the configuration immediately, they don't need to wait until the next cyclic data-sending message; instead, they can force the device to send a special uplink message so that the device can get the new downlink message. This uplink message is named PARAMETERS_UPDATE. It can be forced by applying the magnet key in more than 5s.
Case 6: In every interval time (pre-configured), for example, 24 hours, it will send the message called HEARTBEAT. The payload will tell the user the following data like hardware version, firmware version, current sensor configuration
1.4 Default Configuration
This GHC gas sensor module has the default configuration, however, those parameters can be changed. The user can change the configuration on the wireless transmitter so that the complete sensor (transducer + wireless) delivers the proper output value. Below are some configuration parameters that store in the flash memory of the wireless transmitter.
1.5 Battery/ Power Supply
Use 01 x C-size battery 3.6V LiSOCl2 with 7700mAh;
Recommend to use SAFT LS26500 or equivalent from Tadiran.
1.6 What's in the Package?
1.7 Guide for Quick Test
With the default configuration, the device can be connected quickly to the Sigfox Network by the following steps.
Step 1: Prepare the values of communication settings
Device ID: Get Devive ID on the device nameplate
Device PAC: Get Devive PAC on the device nameplate
Note: All Sigfox sensors are pre-configured with the correct RC before delivery. The settings of Device ID, Device PAC, and RC could also be read from the device memory map. Please reference Section 3.2 Sensor configuration for details.
Step 2: Add the device to the Sigfox Backend
Please refer to the below Section 1.10 for details.
Step 3: Install the batteries to the device
Please refer to Section 1.5 above for instructions on battery installation.
After installing the battery in 60 seconds, the first data packet will be sent to the Sigfox network. After receiving the first data packet, the time of another packet depends on the value of the parameter: CYCLIC_DATA_PERIOD. Additionally, you can use a magnet key to touch the magnetic switch point on the housing within 1 second to initiate force packet of the device to send data instantly and the LEDs on the housing will be lit with SKY BLUE color.
Note:
If the device is required to connect to the external power, the correct external power supply must be connected to the device power connector. Refer section 1.8 INSTALLATION for details of the power wiring
If the device is required to connect to external sensor, the connection must be implemented before power up. Refer section 1.8 INSTALLATION for details of the wiring
If device is required the calibration for correct measurement, the calibration must be implemented. Refer detail at section 3.3 Calibration/ Validation.
Step 4: Decode the payload of the receiving package
Please refer to Section 1.9 Payload Document and Configuration Tables for details of decoding the receiving packet to get the measured values.
1.8 Installation
Dimension Drawings and Installation Gallery (Photos and Videos)
Please follow the checklist below for a successful installation:
1. Have you studied the dimensions of the device as above drawings?
2. Have you tested and make sure the device have been connected successfully as Section "1.7 Guide for Quick Test" above?
3. Have the device been configured properly as per Section 3.2 below?
4. Have the device been calibrated or validated as per Section 3.3 below?
5. Then you can start to install the device at site. Please check the following Installation Notes for Sensor Part (if available) before installation.
Installation Notes for Sensor Part (if available)
Notes: If a sensor has been kept in transport containers at temperatures below zero centigrade, leave it at 10∼35℃ for not less than one hour.* if the Sensor is intended to install outdoors, please use a rain guard to protect the sensor from rain and direct sunlight. Please contact us to buy this accessory.
Place the sensor in the area to monitor the target gas concentration. Please always check the gas molecular weight v.s the air.
Do not use a damaged sensor. It must be repaired only by personnel authorized by the manufacturer.
Keep the sensor out of contact with aggressive substances, e.g., acidic environments, which can react with metals, and solvents, which may affect polymeric materials.
Diffusion holes of the sensor should be protected against the ingress of sprayed liquid or waterdrops, buy using the Splash guard or Rain guard.
The sensor is not intended to measure the target gas concentration contained in fluids.
Correct measurement is provided when the ambient temperature changes not faster than 0.6℃/ min.
Inspection and maintenance should be carried out by suitably trained personnel.
Persons, who have studied this guide, must be briefed on safety precautions when operating electrical equipment intended for use in explosive areas in due course.
When dealing with a cylinder containing a gas mixture under pressure, it is necessary to follow safety regulations.
There is no risk of pollution or negative impact on human health. The sensor does not contain any harmful substances that may be released during its normal operation.
Installation Guide for Main Device
Note: Do not open the device or replacing battery during installation at site (hazardous area Zone 0, 1, 2)
Check Location for the best RF Signal
Make sure the site is good enough for RF signal transmission.
Tip: To maximize the transmission distance, the ideal condition is Line-of-sight (LOS) between the Sigfox-Ready sensor and the Sigfox Base station. In real life, there may be no LOS condition. However, the Sigfox-Ready sensor still communicates with the Base station, but the distance will be reduced significantly.
DO NOT install the wireless sensor or its antenna inside a completed metallic box or housing because the RF signal can not pass through the metallic wall. The housing is made from Non-metallic materials like plastic, glass, wood, leather, concrete, and cement…is acceptable.
Mounting
Mount the sensor onto a wall by two screws as below picture:
1.9 Payload Document and Configuration Tables
Please click below button for:
-
Payload decoding of Uplink messages;
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Payload encoding of Downlink messages;
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Configuration Tables of device.
Note:
If the content of below web payload, memory map, and sample decoder could not be copied, please install the extension of "Enable Copy Paste - E.C.P" for Microsoft Edge and for Google Chrome.
1.10 How to connect device to Back-end/ Network Server/ Coordinator
This instruction is applied to all kinds of Sigfox-Ready sensor produced by Daviteq.
Step 1: Log in to the sigfox backend website
Step 2: Click on Device
Step 3: Click New → Select a group
Step 4: Fill in the required information
Note: Some of our products may not have end product certification in time, to add the product to Backend Sigfox please follow the steps below.
Click on the text as shown below
Check the box as shown below to register as a prototype
2
MAINTENANCE
2.1 Troubleshooting
Please find below steps to identify the problems from Communication Part or Sensor Part:
If the device cannot connect to the Gateway or System or Co-ordinator at the first time, it is the Communication Problem;
If the device status like battery, RSSI level, data status or other communication is normal, but the measured values are not updated or wrong, it would be the problems of Sensor part;
If the data coming to gateway, system or co-ordinator is not frequently as expected, the problem would be Communication.
Please refer below the troubleshooting guide for Communication and Sensor Part.
Troubleshooting for Communication
Troubleshooting for Sensor Part (if available)
2.2 Maintenance
Maintenance for Main device
There is no requirement for maintenance the Hardware of Sigfox Device except:
The battery need to be replaced. Please check the battery status via uplink messages;
Sensor, please refer the maintenance section of sensor document.
Maintenance for Sensor part (if available)
Sensor replacement instructions:
Please remove the batteries before doing the following steps.
Step 1. Unscrew the gas housing
Step 2. Remove the filter housing
Step 3. Unplug gently the sensor module
Step 4. Plug gently and firmly the new sensor module into the PCB
Step 5. Insert the batteries and start calibration as per Section 3
Step 6. Place the filter cover back and screwing to lock
3
ADVANCED GUIDE
3.1 Principle of Operation
Principle of Operation for Device WSSFCEX-GHC | FW2
The Daviteq Sigfox Flammable Gas (GHC) Sensor comprises 02 parts linked internally:
The Daviteq Sigfox wireless transmitter;
The Daviteq Flammable Gas (GHC) sensor.
What are the primary output values?
GHC: GHC value in unit of %LEL, equal parameter GHC_X10 divided by 10
Alarm Status: parameter in the payload is ALARM
Please check the payload document for more details.
What are the secondary output values?
Below output values are useful for device maintenance and troubleshooting.
Battery level (%), to understand the remaining capacity of the battery: parameter in the payload is BATTERY_LEVEL.
Sensor error code, to understand whether the sensor is working properly or not: parameter in the payload is HW_ERROR
Sensor current configuration, to understand what is the current setting of the sensor: parameter in the payload is LATEST_SIGFOX_DOWNLINK
Hardware version and Firmware version, to understand the product version: parameter in the payload is HW_VERSION and FW_VERSION
Number of successive cyclic payload or alarm payload, to understand how long the sensor is in normal operation or alarm status: paramerter in the payload is TENTATIVE
Raw value of GHC, to calibrate the sensor after period of operation: parameter in the payload is RAW_GHC_X10
Principle of operation
Most of the time, the Sigfox device will be in sleep mode. When the timer reaches the Measure_Period (for example, 30 minutes), it will wake up the device to start the measurement.
*** This Measure_Period will affect the energy consumption of the device.
The measurement will take a certain time to finish; it can take milliseconds or seconds to finish the measurement. This measurement time depends on sensor type, required accuracy, and other factors. Shorter measurement time, lower energy consumption, and longer battery life.
After finishing the measurement cycle, the device can read all the measured parameters.
If parameter ALARM_ENABLE = 1
Then the device will compare the GHC value to HiHi_Alarm_setpoint and Hi_Alarm_setpoint together with Hysteresis to define the state of the device is No_Alarm or Hi_Alarm or HiHi_Alarm.
*** Hysteresis value is to avoid the flickering status (Alarm/No-Alarm toggling quickly) when the measured value close to alarm threshold.
If X-axis is in Blue color area of above graph, the device is in Normal or No_Alarm state;
If X-axis is in Red color area, the device is in HiHi Alarm state (Alarm 2);
None of above 02 states, the device will be in Hi Alarm state (Alarm 1).
How the device send uplink message base on above 03 states?
If Device state is No_Alarm, it will check the timer to reach the Cyclic_Data_Period to send the CYCLIC_DATA uplink message;
If Device state is changed from No_Alarm to Hi Alarm or HiHi Alarm, it will send alarm message immediately. Please check the below picture to understand the operation flow when finishing the measurement cycle:
Once alarm happened and send the first alarm message, the device will send the next alarm message in the Alarm_Period if the device is still in Alarm states (Hi Alarm or HiHi Alarm). Please check below picture to understand the operation flow when the Alarm timer reaches the Alarm_Period.
If parameter ALARM_ENABLE = 0
The device will check the timer to reach the Cyclic_Data_Period to send the CYCLIC_DATA uplink message.
Please check the Payload document to understand clearly about uplink messages, downlink messages, meaning of parameters for configuration...
Principle of Operation of Sensor part (if available)
When infrared radiation interacts with gas molecules, infrared light is absorbed by the gas molecules at a particular wavelength, causing vibration of the gas molecules. NDIR (Non-Dispersive Infrared) gas sensors detect a decrease in transmitted infrared light which is in proportion to the gas concentration. This transmittance, the ratio of transmitted radiation energy to incident energy, is dependent on the target gas concentration.
NDIR gas sensor consist of an infrared source, detector, optical filter, gas cell, and electronics for signal processing. A single light source, dual wavelength type gas sensor has two detectors and two optical filters of different wavelengths which are placed in front of each detector. The infrared light that is absorbed by a target gas passes through the active filter with a particular bandwidth for the detection of the target gas. The infrared light that does not interact with the target gas passes through the reference filter. The difference between transmitted light intensities in these two bandwidths is converted into gas concentration. The dual wavelength sensor ensures stable measurements for a long period of operation as the aging effects of the light source or the gas cell are automatically compensated by output signals at the reference wavelength.
Mid-infrared radiation through sample gas causes a resonance of gas molecules at their natural frequency with the infrared light in the spectrum region where the energy level of infrared is equivalent to the natural frequency of gas molecules, resulting in the absorption of infrared by gas molecules in the form of molecular vibration.
The relationship between infrared transmittance and gas concentration is expressed by the Lambert-Beer law:
Where T is transmittance, I is the intensity of light passed through sample gas and an optical filter, Io is the initial light intensity emitted from the source, ε is the molar attenuation coefficient, c is gas concentration, and d is the light path length.
Because ε of the target gas and the light pass length d are fixed with an NDIR sensor, gas concentration can be measured by measuring the transmittance within the spectrum region of the absorbed energy (wavelength) by the target gas.
The initial light intensity emitted from the light source Io is preset by calibration using zero gas which does not absorb infrared light. The initial value of the molar extinction coefficient ε is set by calibration using calibration gas of known concentration.
Default Configuration Parameters of Sensor part (if available)
This GHC gas sensor module has the default configuration, however, those parameters can be changed. The user can change the configuration on the wireless transmitter so that the complete sensor (transducer + wireless) delivers the proper output value. Below are some configuration parameters that store in the flash memory of the wireless transmitter.
3.2 Configuration
How to configure the device?
Sensor configuration can be configured in 02 methods:
Method 1: Configuring via Downlink messages.
Method 2: Configuring via Offline cable.
Note: The sensor is only active for offline configuration in the first 60 since power up by battery or plugging the configuration cable.
Which Parameters are configured?
Please check Part G in Section 1.9 Payload Documents above.
Method 1: Configuration via Downlink messages
Please check the Part D & E in Section 1.9 Payload Documents above.
Method 2: Configuration by Offline Cable
Please download the Configuration Template File of this sensor to be used in Step 4 below.
Instructions for offline configuration of the Daviteq LoRaWAN sensors. Please follow the following steps.
Note: The sensor is only active for offline configuration in the first 60 since power up by battery or plugging the configuration cable.
1. Prepare equipment and tools
The following items must be prepared for configuration.
A PC using the Windows OS (Windows 7 or above versions). The PC installed the COM port driver of the Modbus configuration cable (if needed). The driver is at link: Modbus Configuration Cable COM port driver for PC and the instruction to install the driver at link: How to install the driver.
A Modbus configuration cable
Tools to open the plastic housing of LoRaWAN sensors (L hex key or screwdriver)
2. Download and launch Daviteq Modbus configuration software
Click the link below to download Daviteq Modbus configuration software:
https://filerun.daviteq.com/wl/?id=yDOjE5d6kqFlGNVVlMdFg19Aad6aw0Hs
After downloading the software, unzip the file named: Daviteq Modbus Configuration.zip and then copy the extracted folder to the storage drive for long-term use.
Open the folder, double click on the file Daviteq Modbus Configuration Tool Version.exe to launch the software and the software interface as below:
Note: The software only runs on Microsoft Windows OS (Windows 7 and above).
3. Connect the cable and configure the sensor
Step 1:
Connect the PC to the sensor using the configuration cable.
- Use the configuration cable (Item code: TTL-LRW-USB-01).
- Connect the USB-A plug into the USB-A socket of the PC.
Step 2:
On the configuration software, choose the relevant Port (the USB port which is the cable plugged in) and set the BaudRate: 9600, Parity: none
Step 3:
Click Connect button to connect the software to the sensor. After successful connection, the Connected status will show on the software.
Step 4:
Import the configuration template file of the sensor (as above link) to the software: click menu File/ Import New and then browse the relevant sensor template file (csv file) and click Open to import the template file.
Note: The sensor is only active for configuration for 60 seconds since plugging the configuration cable or the power supply into the sensor.
Each sensor type has its own template file. Refer to the sensor's manual to download the correct file.
Step 5:
Open the housing of the sensor and quickly plug the connector of the configuration cable into sensor's modbus configuration port as below figure. After plugging the connector, the software will read the parameter values automatically.
Plug the cable connector into sensor's modbus configuration port. This port is located at a different location, depends on the sensor type.
Note: If the sensor has SKU of WSSFCEX-PPS and hardware version 1 &2, the sensor must be powered by batteries for configuration
Step 6:
Read the current value of the parameter with Modbus Function 3
At the relevant row of the parameter, check box 3 on column Func to read the value of the parameter. The read value is shown in VALUE ON MEMMAP column.
The sensor is only active for configuration for 60 seconds since plugging the configuration cable or the power supply into the sensor. After 60 seconds, the TIME_OUT text will show on EXCEPTION column of the software.
Step 7:
Write the new setting to the parameter with Modbus Function 16
Double click on the column VALUE TO WRITE of the parameter and input the new setting value of the parameter;
Uncheck the tick on the FC column of the parameter, click on the arrow, select 16 and then check on the FC column to write a new setting to the parameter. The WRITE_OK text will show on EXCEPTION column if the software successfully writes the setting.
Repeat Step 6 to read the setting of the parameter for double-checking.
Note: For some critical parameters of the sensor, the password in "password for setting" must be written before writing the new settings to these parameters.
Only read/ write registers are allowed to write.
The sensor is only active for configuration for 60 seconds since plugging the configuration cable or the power supply into the sensor. After 60 seconds, the TIME_OUT text will show on EXCEPTION column of the software.
4. Troubleshooting
3.3 Calibration/ Validation
How to force sensor to send data for calibration/ validation (if available)
By using the magnet key, the Sigfox node can be triggered to send data to base station immediately. There will be a beep sound from the buzzer meaning the data has been sent. (Buzzer will be updated in the latest version)
Note:
Once sending the data to base station by the magnet key, the timer of sending time interval will be reset;
The shortest time interval between the two manual triggers is 15s. if shorter than 15s, there will be no data sending.
Calibration/ Validation sensor (if available)
The Daviteq GHC Gas Sensor must be connected to a reading device, it usually is a wireless transmitter like Sub-GHz, Sigfox, or LoRaWAN.
Why do we need to calibrate the gas sensor? There are some reasons:
- The output value of a sensor is different from the other sensor. It is not the same value for all sensors after manufacturing.
- The output value of a sensor will be changed over time.
Therefore, users need to calibrate the sensor before use or in a pre-defined interval time (30 months for example).
How to calibrate the GHC Flammable Gas sensor?
NOTE: THE CALIBRATION CAN ONLY BE DONE IN THE SAFE ZONE!!!
Please follow steps for Instruction to attach the calibration cap onto the sensor module to get Zero or Span values:
Step 1. Attach the calibration cap to the sensor head
Step 2. Installed the Regulator to the Gas cylinder
Step 3. Attach the tube to the regulator
Please select the flow regulator with a flow rate of 2.5 LPM or 5.0 LPM.
With the 2-point calibration method, the user can define the A and B factors. Please find below the steps of calibration.
Step 1. Get the Zero value.
- Power ON the device;
- Place the device in a clean-air environment (the target value is nearly zero) at a temperature from 20∼30℃, in at least 60 minutes.
- After 60 minutes, force the device to send data, read and record the Raw_value, so now you got the Zero_value = Raw_GHC value.
Recommendation: Record many Raw_GHC values at least 10 minutes apart (10 values). Zero value is the average of the recorded Raw values.
Note: The Raw_GHC values can be positive or negative; Its value is usually 7 (% LEL)
Step 2. Get the Span value
Note: Keep the sensor Power ON all the time
- Use the standard gas cylinder with a known concentration (for example Eythylene Air 1.35% is equivalent to 50% LEL ) to supply the gas to the sensor;
- Use the calibration cap as above pictures to attach to the sensor and connect the tubing to the gas cylinder;
- Open the valve on the Cylinder slowly and make sure the gas has reached the sensor. The flow regulator should be 2.5 LPM or 5.0 LPM.
Notes: The tube length is short as possible to reduce the gas loss.
- Press a timer to start counting the time;
- After 2 minutes, force the device to send data once every minute, and stop forcing at 5 minutes;
- The highest Raw_value is the Span value.
Note: Just get one value for Span.
- After that, immediately turn OFF the valve to save the gas;
- Remove the calibration cap from the sensor;
- Place the sensor in clean air again.
Note: Always keep the sensor Power ON all the time.
Step 3. Calculate the new A and B
The calculation of new A, B value based on basic linear formula:
y = A * x + B
Where:
A, B is calibration coefficients
x is the sensor process value (example gas level in ppm) read on reading device such as on application server/network server, on offline tool. The process value is the RAW_VALUE in the payload
y is the correct value. y is the value of standard gas/standard condition
Which condition of Zero value: y₀ = A * x₀ + B
Which condition of Span value: yₛ = A * xₛ+ B
From the two formulas, the calculation of A, B as below
A = (y₀ - yₛ) / (x₀ - xₛ)
B = (yₛ * x₀ - y₀ * xₛ) / (x₀ - xₛ)
Example of A, B calculation for LoraWAN Ammonia Gas sensor (item code WSLRW-G4-NH3-100-01):
* With condition of clean-air environment at a temperature from 20∼30℃, there is no ammonia gas (y₀ = 0); while the NH₃ level on reading device (RAW_VALUE in the payload) is -0.25 (x₀ = -0.25)
* When the sensor is connected to standard gas cylinder having ammonia level of 25 ppm (yₛ = 25); while the NH₃ level on reading device (RAW_VALUE in the payload) is 18.66 (xₛ = 18.66)
The calculation of A, B for the Ammonia gas sensor:
A = (0 - 25) / (-0.25 - 18.66) = 1.32205
B = (yₛ * x₀ - y₀ * xₛ) / (x₀ - xₛ) = (25 * (-0.25) - 0 * 18.66) / (-0.25 - 18.66) = 0.33051
The factory default A = 1 and default B = 0
The RAW_VALUE in the payload is used for calibration
Step 4. Configure the new A and B into the device
- User can use the off-line tool or downlink to write the values of A and B;
- Writing the new A and B successfully meant you had done the calibration process. Congratulation!
4
PRODUCT SPECIFICATIONS
4.1 Specifications
Spec
5
WARRANTY & SUPPORT
5.1 Warranty
Warranty
Below terms and conditions are applied for products manufactured and supplied by Daviteq Technologies Inc.
Free Warranty Conditions
The manufacturer undertakes to guarantee within 12 months from shipment date.
Product failed due to defects in material or workmanship.
Serial number, label, warranty stamp remains intact (not purged, detected, edited, scraped, tore, blurry, spotty, or pasted on top by certain items).
During the warranty period, if any problem of damage occurs due to technical manufacturing, please notify our Support Center for free warranty consultancy. Unauthorized treatments and modifications are not allowed.
Product failed due to the defects from the manufacturer, depending on the actual situation, Daviteq will consider replacement or repairs.
Note: One way shipping cost to the Return center shall be paid by Customers.
Paid Warranty
The warranty period has expired.
The product is not manufactured by Daviteq.
Product failed due to damage caused by disasters such as fire, flood, lightning or explosion, etc.
Product damaged during shipment.
Product damaged due to faulty installation, usage, or power supply.
Product damage caused by the customer.
Product rusted, stained by effects of the environment or due to vandalism, liquid (acids, chemicals, etc.)
Product damage is caused by unauthorized treatments and modifications.
Note: Customers will be subjected to all repairing expenses and 2-way shipping costs. If arises disagreement with the company's determining faults, both parties will have a third party inspection appraise such damage and its decision be and is the final decision.
5.2 Support
Support via Help center
If you need our support for Daviteq device's installation, configuration, test, and decode, please input support request at link: https://forms.office.com/r/XWHbYG7yy7
Our support engineer will contact you via email or the support ticket system.
If you have any questions about the product, you can search for information on our web (https://www.iot.daviteq.com/). If you can't find the right information, please register an account and send us a request at link Contact us | Daviteq Technologies . We will respond within 24 hours.