USER GUIDE FOR EX D APPROVED SIGFOX PROCESS PRESSURE SENSOR WSSFCEX-PPS THIS IS OBSOLETE MANUAL Please access https://www.iot.daviteq.com/wireless-sensors for updated manual WSSFCEX-PPS -MN-EN-01 SEP-2020 This document is applied for the following products SKU WSSFCEX-PPS HW Ver. 1.2 FW Ver. 1.2 Item Code WSSFCEX-PPS-9-10 SIGFOX GAGE PROCESS PRESSURE SENSOR, ATEX EXD APPROVAL ZONE 1/2, RANGE 0-10 BARG, ACCURACY 0.5%, PROCESS CONNECTION 1/2" NPT-MALE, 316SS, TYPE AA BATTERY 1.5VDC, RC2-RC3-RC4-RC5 ZONES WSSFCEX-PPS-8-10 SIGFOX GAGE PROCESS PRESSURE SENSOR, ATEX EXD APPROVAL ZONE 1/2, RANGE 0-10 BARG, ACCURACY 0.5%, PROCESS CONNECTION 1/2" NPT-MALE, 316SS, TYPE AA BATTERY 1.5VDC, RC1-RC6-RC7 ZONES WSSFCEX-PPS-G-1000 SIGFOX GAGE PROCESS PRESSURE SENSOR, ATEX EXD APPROVAL ZONE 1/2, RANGE 0-1000 BARG, ACCURACY 0.5%, PROCESS CONNECTION 1/2"NPT-MALE, 316LSS, TYPE AA BATTERY 1.5VDC, RC1-RC2-RC3-RC4 ZONES 0. Configuration Check List STEP 1: Select RC 1. Select RC zone RC zones selection 1, 2, 4,... is RCZ1, RCZ2, RCZ4,...  (refer to section 6) STEP 2:  Check ID and PAC Use Modbus Configuration Cable to read the ID and PAC values Refer to register address 8 and 10 (DEC) STEP 3:  Configure the sensor's operating parameters Configure parameters like cycle send data, alarm, a, b,... Refer to the configuration section 5 and section 6 STEP 4:  Add device to Backend Sigfox refer to section 5.2 for details STEP 5:  Installation refer to section 7  for details 1. Change Log Document Ver. Release Date Change log 1.0 SEP-2020 - First version for WSSFCEX-PPS 1.1 FEB-2022 - Update information of WSSFCEX-PPS-G-1000 2. Introduction WSSFCEX-PPS is the Sigfox Integrated Process Pressure Sensor with Exd approval for installation in Zone 1, Zone 2 or Safe Zone, and it has different kinds of measurements, such as Gage/Absolute/Sealed Gage, range -1 .. + 700 bar, high accuracy, and stability. With Ultra-low-power design and smart firmware allow the sensor can last up to 10 years with single C battery (depends on configuration). It can supports all regions of Sigfox network in over the World, RC1, RC2, RC3, RC4, RC5, RC6, RC7. Typical applications are pressure monitoring of oil pipeline, gas pipeline, LPG tank, CNG tank, etc. 3. Specification Sensor Advanced PIEZO technology Measurement range Select from -1 .. + 1000 bar Gage/Absolute/Sealed Gage Over pressure protection 1.5 x Span Accuracy & Stability 0.5% of span, < 0.3% span/year Wetted parts & Measuring Fluids 304SS/316SS, Any fluid which is workable with materials 304SS/316SS Fluid Working temperature 0 .. + 80 oC Process connection 1/2” NPT-male as standard, others please consult factory Sigfox zones select RC2-RC3-RC4-RC5 or RC1-RC6-RC7 Antenna N-male type external Antenna Battery 02 x AA Type 1.5VDC as standard, working time up to 10 years (depends on configuration). 02 x Battery AA 3.6V is also available as optional. ATEX Certificates IMQ 14 ATEX 005 X, TÜV CY 18 ATEX 0206158 X and IECEx DEK 15.0048X Marking ATEX II 2G Ex db IIC T5/T6 Gb and ATEX II 2D Ex tb IIIC T100/T85°C Db Directive ATEX 2014/34/EU Standards IEC-EN60079-0 IEC-EN60079-1 IEC-EN60079-31 Applicable zones Zone 1 - 21 (gas) and Zone 2 - 22 (dust) Ambient working temperature -40oC..+85oC Housing Cast aluminium, powder coated, IP66 Mounting wall mounting holes Product dimensions H100xW100xD80 (excluded antenna) Net weight 1.5 kgs Packaging dimension W160 x D150 x H250 mm Gross weight < 1.6 kgs 4. Dimensions 4.1 WSSFCEX-PPS with 0-10 barg version 5. Operation Principle Upon power on, the Sigfox node has 60 seconds to wait for off-line configuration (via cable with ModbusRTU protocol) After 1 minute 30 seconds later the device will send the first data packet and at the same time wait for the downlink packet from the Base Station. Then during the operation, there are 03 cases of sending data to base station: 1. When the sensor sampling time interval is reached, the Sigfox node will read the data from Input or sensor and performing the calculation. After that it will check calculated value with alarm thresholds. If the calculated was out off the threshold values (Lo or Hi), called alarm, and the number of times of alarm did not pass the limit of number of alarms, then it will send data to Base station immediately; NOTE: Once sending the data to base station by this alarm event, the timer of sending time interval will be reset; 2. When the sending time interval is reached, it will send data to Base station immediately, regardless of value; 3. 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) EVENT PRE-CONDITION ACTION LED STATUS BUZZER STATUS ACTIVITIES POST-CONDITION FORCE_DATA Any state Move Magnet Key to contact point of REED SWITCH.Buzzer beep 1 time, move Magnet Key away. Blink SKY BLUE Beep 1 time See FW specs Back to previous state PARAMETERS_UPDATE Any state Move Magnet Key to contact point of REED SWITCH.Buzzer beep 1 time, hold Magnet Key 5s.Buzzer beep 2 times. Blink PURPLE Beep 2 times See FW specs Back to previous state 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. 5.1 LED meaning Whenever the data is sent to base station, the LED will lit with color codes as below: RC1: RED colour RC2: GREEN colour RC4: BLUE colour 5.2 Button Function 5.2.1 Menu configuration There are 3 configuration menus: tx_repeat, downlink_flag, radio configuration. We use the button to enter the menus as follows: 5.2.1.1 tx_repeat Press and hold the button 2s  ->  When the Red LED is on, it means entering the tx_repeat configuration menu. Then release to configure it. Press to configure. After pressing if the Red LED flashes once, tx_repeat = 0 (send 1 time). After pressing if the Red LED blinks twice, it is tx_repeat = 1 (send 3 times). 5.2.1.1 downlink_flag Press and hold the button 5s  ->  When the Green LED is on, it means entering the downlink_flag configuration menu. Then release to configure it. Press to configure. After pressing if the Green LED flashes once, it is downlink_flag = 0 (downlink is not allowed). After pressing if the Red LED blinks twice, it is downlink_flag = 1 (downlink is allowed). 5.2.1.1 radio configuration Press and hold the button 10s  ->  Blue LED is on, it means entering the Radio Configuration menu. Then release to configure it. Press to configure. After pressing if the Blue LED blinks once, it is Radio Configuration = 1. After pressing if the Blue LED flashes twice, it is Radio Configuration = 2. After pressing if the Blue LED flashes 4 times, it is Radio Configuration = 4. 5.2.2 Exit the menu: There are 3 ways to exit the menu: Press and hold for 3s, the LED turns off to exit the menu; Wait 30 seconds, then exit the menu; Take out the battery, it all starts over (outside the menu)). 5.3 RC technical details The RF transmit power will be automatically set as the max value as allowed by the Zone. Sigfox Radio Configuration (RC) defines the radio parameters in which the device shall operate: Sigfox operating frequencies, output power, spectrum access mechanism, throughput, coexistence with other radio technologies, etc. Each radio configuration includes 4 uplink classes: 0u, 1u, 2u, and 3u. The Sigfox network globally works within the ranges from 862 to 928 MHz. But not all RCs require such a wide range of operation. RC1 RC2 RC4 Uplink center frequency (MHz) 868.130 902.200 920.800 Downlink center frequency (MHz) 869.525 905.200 922.300 Uplink data rate (bit/s) 100 600 600 Downlink data rate (bit/s) 600 600 600 Sigfox recommended EIRP (dBm) 16 24 24 Specifics Duty cycle 1% * Frequency hopping ** Frequency hopping ** * Duty cycle is 1% of the time per hour (36 seconds). For an 8 to 12 bytes payload, this means 6 messages per hour, 140 per day. ** Frequency hopping: The device broadcasts each message 3 times on 3 different frequencies. Maximum On time 400 ms per channel. No new emission before 20 s. *** Listen Before Talk: Devices must verify that the Sigfox-operated 200 kHz channel is free of any signal stronger than −80 dBm before transmitting. Sigfox’s high limit EIRP recommendation is included in each column although regulations sometimes allow for more radiated power than the Sigfox recommendation. Sigfox’s recommendation is set to comply with the Sigfox technological approach of: Low current consumption Balanced link budget between uplink and downlink communication 5.4 Add a device to the Backend Sigfox 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 5.5 Process of measurement When the sensor sampling time interval is reached, for example 2 minutes, the Sigfox node will wake up and switch ON the power supply to supply the energy to external sensor to start the measurement. Depends on the type and characteristic of external sensor, the sensor will take a certain time to finish the measurement. Once reading the value, it can be scaled to any engineering value by the following formula: Y = aX + b Where: X: the raw value from sensor Y: the calculated value will be sent to Sigfox base station in the payload data. a: constant (default value is 1) b: constant (default value is 0) So, if there is no user setting for a and b ==> Y = X The Y value will be compared with Lo and Hi threshold. Please refer below the graph of alarm processing. ​ 5.6 Configuration Parameters Parameter Description Possible values Default value Length (in bits) HIGH_ALARM_SETPOINT High alarm setpoint for calculated value 32-bit float 1000000000 32 LOW_ALARM_SETPOINT_FACTOR Low alarm setpoint for calculated value 8-bit unsigned integerLOW_ALARM_SETPOINT = HIGH_ALARM_SETPOINT *  LOW_ALARM_SETPOINT_FACTOR / 200 0 8 ALARM_ENABLE Enable/Disable ALARM event 0b0 = ALARM event is OFF0b1 = ALARM event is ON 0b0 = ALARM event is OFF 1 ALARM_PERIOD Period of time to send ALARM event 0b000 = every  10min0b001 = every  30min0b010 = every 1h0b011 = every 2h0b100 = every 3h0b101 = every 6h0b110 = every 12h0b111 = every 24h 0b000 = every  10min 3 LED_BUZZER_ENABLE Enable/Disable LEDs and Buzzersinteractions for action not triggered by the reed switch 0b1 = LEDs and Buzzers are ON 1 HEARTBEAT_PERIOD Period of time to send HEARTBEAT event 0b000 = every  1h0b001 = every  6h0b010 = every 12h0b011 = every 24h (1 day)0b100 = every 48h (2 days)0b101 = every 72h (3 days)0b110 = every 120h (5 days)0b111 = every 240h (10 days) 0b011 = every 24h (1 day) 3 MEASURE_PERIOD Period of time to measuresensor 0b0000 = every 1s0b0001 = every 2s0b0010 = every 5s0b0011 = every 10s0b0100 = every 20s0b0101 = every 30s0b0110 = every 1min0b0111 = every 2min0b1000 = every 5min0b1001 = every 10min0b1010 = every 20min0b1011 = every 30min0b1100 = every 1h0b1101 = every 2h0b1110 = every 3h0b1111 = every 6h 0b1001 = every 10min 4 TX_REPEAT Sigfox TX repeat 0b0 = Send RF 1 time0b1 = Send RF 3 time 0b1 = Send RF 3 time 1 CYCLIC_DATA_PERIOD Period of time to send CYCLIC_DATA event 0b000 = every  10min0b001 = every  30min0b010 = every 1h0b011 = every 2h0b100 = every 3h0b101 = every 6h0b110 = every 12h0b111 = every 24h 0b001 = every  30min 3 DEVICE_RESET Once this parameter is set, the device shall restart once after having received the Downlink. 0b1010 = 0xA = force device resetothers = do nothing 0b0000 = do nothing 4 DOWNLINK_TYPE Downlink type 4-bit unsigned integerSee Sigfox Downlink tab 0b0000 4 5.7 Payload Data The following is the format of payload data will be sent to Sigfox server. Length is 6 bytes, it is future-proof for expansion to 12 bytes. 5.7.1 Payload Fields Data name Description Encoding or Possible values Length (in bits) EVENT_ID Unique ID identifying the device event 4-bit unsigned integer0 = START_UP1 = HEARTBEAT2 = PARAMETERS_UPDATE3 = FORCE_DATA4 = CYCLIC_DATA5 = ALARM 4 HW_VERSION Indicate HW  version 4-bit unsigned integer1..15 4 FW_VERSION Indicate FW version 8-bit unsigned integer1..255 8 LATEST_SIGFOX_DOWNLINK Latest received and valid sigfox downlink frame= Current configuration 64-bit encoded fieldSee Sigfox Downlink tab 64 HW_ERROR HW error 0b0 = no error0b1 = error 1 ALARM Alarm 0b00 = no alarm0b01 = low alarm0b10 = high alarm0b11 = not used 2 BATTERY_LEVEL Battery level 2-bit unsigned integer0..3 2 RAW_VALUE Raw value of pressure sensor (12-bit) 16-bit unsigned integer 16 PRESSURE Scaled value of pressure sensor 32-bit float 32 TENTATIVE Tentative number 8-bit unsigned integerFormula: (8-bit_Tentative +1)= real_tentative #Range: 1 to 256Accuracy: 1Example: 0b00000111 = 0x7=7=> 7+1 =>tentative # 8 8 5.7.2 Sigfox Uplink Frame Format Size START_UP (led blink WHITE) Payload EVENT_ID HW_VERSION FW_VERSION LATEST_SIGFOX_DOWNLINK 10.0 bits 4 4 8 64 Value 0b0000 = 0 yes yes yes HEARTBEAT (led blink GREEN) Payload EVENT_ID HW_VERSION FW_VERSION LATEST_SIGFOX_DOWNLINK 10.0 bits 4 4 8 64 Value 0b0001 = 1 yes yes yes PARAMETERS_UPDATE (led blink PURPLE) Payload EVENT_ID HW_VERSION FW_VERSION LATEST_SIGFOX_DOWNLINK 10.0 bits 4 4 8 64 Value 0b0010 = 2 yes yes yes FORCE_DATA (led blink SKY BLUE) Payload EVENT_ID HW_ERROR reserved ALARM BATTERY_LEVEL reserved RAW_VALUE PRESSURE 8.0 bits 4 1 3 2 2 4 16 32 Value 0b0011 = 3 yes zeros yes yes zeros yes yes CYCLIC_DATA (led blink SKY BLUE) Payload EVENT_ID HW_ERROR reserved ALARM BATTERY_LEVEL reserved RAW_VALUE PRESSURE 9.0 bits 4 1 3 2 2 4 16 32 Value 0b0100 = 4 yes zeros yes yes zeros yes yes ALARM (led blink RED) Payload EVENT_ID HW_ERROR reserved ALARM BATTERY_LEVEL reserved RAW_VALUE PRESSURE 9.0 bits 4 1 3 2 2 4 16 32 Value 0b0101 = 5 yes zeros yes yes zeros yes yes 5.7.3 Payload for Downlink, length is 8 bytes. The Sigfox node is only able to receive max 04 downlinks a day, each downlink will be waiting in every 06 hours. User can set the down link data in Sigfox back-end system in advance, whenever the Sigfox node connected to base stations and with downlink waiting is enable at that time (one time in 6 hours), the downlink data will be loaded to Sigfox node. The downlink data can be any configuration parameter. Please pay attention when send downlink data. If there was a mistake in sending wrong data, it would cause the Sigfox node not working properly and user need to configure it by offline cable!!! Size DOWNLINK_TYPE = 0 Payload HIGH_ALARM_SETPOINT LOW_ALARM_SETPOINT_FACTOR ALARM_ENABLE ALARM_PERIOD LED_BUZZER_ENABLE HEARTBEAT_PERIOD 8.0 bits 32 8 1 3 1 3 Value yes yes yes yes yes yes MEASURE_PERIOD TX_REPEAT CYCLIC_DATA_PERIOD DEVICE_RESET DOWNLINK_TYPE 4 1 3 4 4 yes yes yes yes 0b0000 = 0 Size DOWNLINK_TYPE = 5 Payload PRM_ADDRESS PRM_LENGTH PRM_VALUE reserved DOWNLINK_TYPE 8.0 bits 8 8 16 28 4 Value yes 0x02 = 2 yes zeros 0b0101 = 5 Payload PRM_ADDRESS PRM_LENGTH PRM_VALUE reserved DOWNLINK_TYPE 8.0 bits 8 8 32 12 4 Value yes 0x04 = 4 yes zeros 0b0101 = 5 6. Configuration DANGER:DO NOT OPEN THE COVER AT HAZARDOUS LOCATION!ONLY OPEN COVER FOR TROUBLE SHOOTING AND CONFIGURATION IN SAFE AREA! Using the configuration cable to connect to the sensor as below picture. Serial port configuration on computer: 9600 baud, None parity, 1 stop bit.Reading data by Function 3.Writing data by Function 16. During connection with Modbus configuration tool, the Sigfox node will send all data in realtime: Battery, Battery level, Vref, Button status, reed switch status, PCB temperature, Measured value, alarm status. Step to configure & check data: NOTE: The Modbus configuration can be done in the first 60s after power up the Sigfox node. After 60s, if user can not finish the configuration, user need to reset the power of Sigfox node again, by removing battery in at least 15s. Step 1: Install the Modbus Configurator Software in the link below https://filerun.daviteq.com/wl/?id=qK0PGNbY1g1fuxTqbFW9SXtEvCw7bpc6 How to use the Modbus configuration software Step 2: Plug the configuration cable to computer via USB port and install the driver; Step 3: Open the housing; Step 4: Plug the connector to the configuration port; Red Tx Black Rx Yellow GND Tx on cable will go with Rx on sensor and vice versa. Step 5: Insert the battery; Step 6:  Import the configuration file by importing the csv file: Go to MENU: FILE / Import New / => select the file with name CONFIGURATION TEMPLATE FILE FOR SIGFOX FW1.9.3.csv (in the link below). Then click Connect; CONFIGURATION TEMPLATE FILE FOR SIGFOX WSSFCEX-PPS.csv Here is the table of Data will be read by Modbus tool Modbus Register (DEC) Modbus Register (Hex) Function Code (Read) Function Code (Write) No. of Registers Description Range Default Format Property Comment 2 2 3 4 FW_VERSION string Read 6 6 3 2 HW_VERSION string Read 8 8 3 2 DEVICE_ID hex Read Product ID 10 A 3 4 DEVICE_PAC hex Read Product PAC 14 E 3 1 SENSOR_TYPE 1-255 uint16 Read Sensor or Input Type Here is the table for Configuration: Modbus Register (DEC) Modbus Register (Hex) Function Code (Read) Function Code (Write) No. of Registers Description Range Default Format Property Comment 270 10E 3 16 4 CURRENT_CONFIGURATION hex Read/Write 274 112 3 16 1 SERVER_CONFIG uint16 Read/Write 0: Send to Sigfox Network1: Send to Dongle 276 114 3 16 1 RADIO_CONFIG 1, 2, 4 4 uint16 Read/Write RC zones selection 1, 2 ,4 is RCZ1, RCZ2, RCZ4 277 115 3 16 1 TX_POWER 20 int16 Read/Write RF Tx power 278 116 3 16 2 CONSTANT_A 1 float Read/Write Constant a for scaling measured value 280 118 3 16 2 CONSTANT_B 0 float Read/Write Constant b for scaling measured value 282 11A 3 16 2 HIGH_CUT 1000000000 float Read/Write High cut value for calculated value 284 11C 3 16 2 LOW_CUT -1000000000 float Read/Write Low cut value for calculated value 286 11E 3 16 2 SENSOR_BOOT_TIME 200 uint32 Read/Write Boot time of sensor/input, in ms 7. Installation 7.1 Locate the good place for Radio signal To maximize the distance of transmission, the ideal condition is Line-of-sight (LOS) between the Sigfox sensor and Base station. In real life, there may be no LOS condition. However, the Sigfox sensor still communicate with Base station, but the distance will be reduced significantly. ATTENTION:DO NOT install the Sigfox sensor or its antenna inside a completed metallic box or housing, because RF signal can not pass through metallic wall. The housing is made from Non-metallic materials like plastic, glass, wood, leather, concrete, cement…is acceptable. 7.2 Process mounting WARNINGS:1. Please make sure the fluid is suitable with the wetted materials of the sensor. Please refer sensor specification;2. Please make sure the operating temperature and pressure is suitable with the sensor. Please refer sensor specification;3. Prepare the professional tools for installation. The inappropriate tools may cause damage to the sensor. DANGER:1. The installer need to be equipped with full Safety gears during installation, such as safety glasses, safety shoes, safety cloths, safety mask...Please follow the safety instructions of the installation site;2. The installer must be qualified for this installation job;3. The installer must be permitted by Site's owner for performing the installation;4. The working conditions in hazardous areas (toxic gases, explosive atmosphere, high pressure, high temperature...) must be highly attention and follow the site's owner instruction strictly.DO NOT OPEN THE COVER OR REPLACE/INSERT BATTERIES IN THE HAZADOUS AREAS Consider to use the isolation valve 1/2" or 1/4" to isolate the media and the sensor during maintenance; Fully closing the isolation valve during installation and maintenance the sensor; Fully open the isolation valve during normal operation; There are two ways of process mounting as below. 7.2.1 Mounting direct on Pipe The total weight of the sensor MUST be within the permitted load of the pipe to be installed; Consider to build the support for the pipe if the sensor weight is larger than the permit; Below picture shown without the isolation valve, but we highly recommend to use isolation valve. 7.2.2 Remote mounting on wall or pole Make sure the wall or place of pole for mounting is not covered or affected by the surrounding metallic objects; Using the metal tubing and fittings for interconnection between process pipe and sensor process connector; The metal tubing and fitting materials, and size must be sizing properly to suit the process conditions; It is better to install the isolation valve next to sensor process connector. 7.3 Battery installation Steps for battery installation: DANGER:DO NOT REPLACE BATTERY AT HAZARDOUS LOCATION!DO NOT OPEN THE COVER AT HAZARDOUS LOCATION!ONLY OPEN COVER AND REPLACE BATTERY IN SAFE AREA! Step 1: Turn the front cover of the sensor counter-clockwise; Step 2: Carefully take out the front cover of the sensor Step 3: Insert the type AA battery, please take note the polarity of battery ATTENTION: REVERSED POLARITY OF BATTERIES IN 10 SECONDS CAN DAMAGE THE SENSOR CIRCUIT!!! Step 4: Turn the front cover of the sensor clockwise to close fully. NOTES: Using 2mm hex key to lock the cover to prevent the unattended opening. 8. Troubleshooting No. Phenomena Reason Solutions 1 Node does not send RF to base station periodically, LED does not blink No power supply Configuration sending cycle is incorrect Check that the battery is empty or not installed correctly Check the power supply Check the send cycle configuration 2 Node does not send RF to base station according to the alarm, LED does not blink The alarm configuration is incorrect Running out of the number of alarms set for the day Check alarm configuration Check the configuration for the maximum number of alarms per day 3 Node does not send RF to base station when activated by the magnetic switch, LED does not blink Magnetic switch has malfunctioned Read the status of the magnetic switch via modbus (when powering or attaching the battery) to see if the magnetic switch is working. 4 Node has blinked LED when sending RF but the base station cannot received Out of the number of RF packages per day (140 packages / day) Check on the base station whether the event message exceeds the number of RF packets 5 Node has sent RF but the LED does not blink LED malfunction LED welding is not good Check LED condition and LED weld 6 The value of the sensor is 0 No pressure Lost connection with the sensor Check pipe pressure Check sensor connection 7 The node does not send RF and the RF module is hot Insert the battery in the opposite direction Short circuit Warranty or replacement 8 RSSI is weak and often loses data Distance between Node and Gateway is far or there are many obstructions Connection to Antenna problem Check Antenna position Install Node in a well ventilated location 9. Support contacts Manufacturer Daviteq Technologies IncNo.11 Street 2G, Nam Hung Vuong Res., An Lac Ward, Binh Tan Dist., Ho Chi Minh City, Vietnam.Tel: +84-28-6268.2523/4 (ext.122) Email: info@daviteq.com | www.daviteq.com Distributor in Australia and New Zealand Templogger Pty Ltd Tel: 1800 LOGGER Email: contact@templogger.net