WISENMESHNET Vibrating Wire (VW) Interface Node (1 / 4 / 8
Contents
1. Figure 15 The 8 VW Surface Fixing Single Din Rail L Front View R Side View 2 8221515 wisen innovation www wiseninnovation co uk www wisencn com Page 15 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual Figure 16 The 8 VW Column Fixing 6 General Maintenance and Notification PUL 1 Once VW Node is installed in the field please minimise any man made disturbance so that data guality can be maintained 2 Radio communication will be impaired if the antenna is covered by metal or very moist soil material 3 Duetothe discharge characteristics of the recommended battery a battery replacement should be carried out when a node reported voltage reaches 2 7V at which point you have approximately 3 weeks to change the battery 4 Our product will use all the possible capacity in a battery down to a stop minimum voltage which has been specified in the Features table When this occurs our WISENMESHNET protocol will send you a warning then it will enter a deep sleep mode until a new battery is installed 27 1 215435 wisen innovation www wiseninnovation co uk www wisencn com Page 16 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 5 If the data from nodes are showing unexpected results or not being sent back to the Wisen gateway then please carry out investigation using the following two stage p2. 5 4 VW Interface Node Mounting Options Depending on the installation surface the VW Interface Nodes can be deployed using different methods 1 Surface Fixing using Din Rails Step 1 Cap Hex Head Screw M6x14 firmly screw Din Rails to the back of the node box Step 2 Anchor Bolt M6x70 Drill size of M10 firmly bolt Din Rails onto the flat surface 2 Column Fixing using Metal Releasable Cable Ties Please refer to the figures below 2 82215155 wisen innovation www wiseninnovation co uk www wisencn com Page 12 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 1 Channel VW Interface Node VER BAT TeRi T e iU cec mce 1 EU i 5 E k 3 t z a Figure 11 The 1 VW Column Fixing Releasable Cable Tie 2 822155 Page 13 of 20 wisen innovation www wiseninnovation co uk www wisencn com Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 4 Channel VW Interface Node Mm 1 n a IN PIN YUNPHNNC810NN002 WISENMESHNET P VW Intertave Node wisen 4 innovation Figure 13 The 4 VW Column Fixing 2 82215175 wisen innovation www wiseninnovation co uk www wisencn com Page 14 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 8 Channel VW Interface Node
3. Interface Node Sensors Settlement Mesh MCU Etc Sampling D Cell Battery Page 6 of 20 wisen innovation www wiseninnovation co uk www wisencn com 2 82215175 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 3 Features WISENMESHNET 1 4 8 Channel Vibrating Wire VW Interface Nodes 9 Typ 25 C Power Supply Qty x 2 for 1 4 Channel Qty x 4 for 8 Channel 3 6V D Cell 32650 Stop Min Voltage 2 1VDC Battery Connection Standard Metal Battery Holder Working Current DC Max 190mA Typ Operating Temperature 40 to 80 C Storage 300 Messages during Meshing LxWxH 160x100x65mm 1 4 Channel 180x140x60mm 8 Channel Weight 1 0kg for 1 4 Channel 1 5kg for 8 Channel Fixing Bracket 250x35mm Din Rail of Slots of 15x6mm Qty 2 IP Rating Certificate Wireless Mesh Interface WISENMESHNET Protocol 250kbps No of Inputs 1 4 8 VW Sensors Sensor Connection WAGO Internal Terminal Plugs Inspection Period Every 2 Years Inspection Method Manufacturer Calibration Main Sensor Excluded Vibrating Wire Type Parameter Resonant Frequency Hz Measurement Range 400Hz to 6000Hz Accuracy 0 02 of Full Scale Hz No of Channels 1 4 8 Channels Resolution 0 1Hz Auxiliary Sensor Temperature Thermistor Range 3kQ to 17kO O Accuracy Antenna 2 4GHz Omni directional 5dBi 20cm or Customised Antenna Connect SMA Female Protocol WISENMESHNET Protocol 80
4. 2 15 4 Compatible W O Frequency Band 2 405GHz 2 480GHz 16 Channels Transmit Power 1 5dBm 20dBm Customised Receive Sensitivity 103dBm 108dBm Customised WISENMESHNET The 3 Fundamental Identities 2 2 V o 3 et D gt 36 months Tx power 0OdBm typical 0 5dBm antenna type 5dBi Network Life Span omni directional sampling rate 10mins Light concrete indoor environment Approx 900 square meters Underground tunnel environment lt Approx 200m tunnel diameter 3m Tx Rx antenna distance to the wall 10cm 2 82215155 wisen innovation www wiseninnovation co uk www wisencn com Page 7 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET amp VW Interface Node User Manual 4 VW Interface Node Terminologies Notice In any Wisen battery powered product unless specified the batteries are inserted Head to Head ie SX OUT Nm W Antenna Connector E On Off Switch i b VC F k T 2 J Antenna Connector ag i 2 LEDs Flashing ae ae va Battery Orientation 0 w ET _ s Ph LEDs Flashing 4 7 On Off Switch Figure 4 VW Interface Node Internal Configuration Terminologies Left the 1 VW Right the 4 VW Figure 5 The 8 VW Interface Node Internal Configuration Terminologies 2 8221515 wisen innovation www wiseninnovation co uk www wis
5. Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual WISENMESHNET Vibrating Wire VW Interface Node 1 4 8 Channel User Manual Wisen Innovation Ltd July 2014 J 822155 wisen innovation www wiseninnovation co uk www wisencn com Page 1 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual Revision History and Clarification Document Definition It defines the specifications introduction usage and maintenance method of the VW interface node which is one of the key components in WISENMESHNET Low Power Intelligent Wireless Sensor Network system Scope Customer Site Project Managers and Engineers Wisen Services Engineers Notice This documentation provides the basic instructions about the WISENMESHNET VW Interface node Any further information can be requested by the customers J 82215435 wisen innovation www wiseninnovation co uk www wisencn com Page 2 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual Table of Contents POET TRITO O ETION u suum Rud NM REI UNUM 4 2 SYSTEM Structure LAV OU Lu ull 6 Ds A u cic bests 4 VW Interface Node Terminologies ccccccsssecccssececesececesceccenececeecessuecesaeneeeseeces
6. cal Doc No 2003 WISENMESHNET VW Interface Node User Manual 7 Package and Accessories Standard LIEN S WISENMESHNET VW Interface Node 1 160x100x60 4 or 8 Channel ee ew m e or om Optional Customer Preparation gt gt HN Battery For the node M6 Anchor Bolt Spanner Bolts to the mounting surface M6 Cap Hex Head Screwdriver Screws between din rail and the back of the node box M3 Cap Hex Head Screwdriver Screws on the lid Metal Cable Tie For special mounting 27 18 asi wisen innovation www wiseninnovation co uk www wisencn com Page 18 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 8 Safety and Warning Warning Please read the following instructions carefully 1 Operation Safety Before taking any action please read all the information provided carefully and keep the guidance documents safe Ensure that any procedures and installations are correctly carried out The communication cable and the case must be grounded This product has been designed to meet a certain water proof level However it becomes water vulnerable when the lid is open or if the cable gland has not been sealed properly 2 Electric Safety gt To install the battery into a holder please follow the positive and negative signs in any Wisen product Wrong orientation of a battery could poten
7. encn com Page 8 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 5 Operation Procedures 5 1 1 2 3 4 5 5 2 System Deployment Notifications Location The deployment location of a VW Interface Node is usually determined by the required monitoring or inspection location Before any VW Interface Node is switched on two tasks will need to be carried out A Unlike the Tilt Node which has a MEM dual axis tilt sensor embedded in the node the VW sensors chosen by the customer e g VW crackmeter VW settlement gauge VW strain gauge etc must be connected to the VW Interface Node B A gateway must be deployed powered on and proven to be working properly Otherwise the nodes will need to be switched off then switched on again after a gateway is switched on So simply speaking the rules to follow to correctly deploy a WISENMESHNET system are 1 Gateway first 2 then nearby nodes with the VW sensors connected 3 then further nodes with the VW sensors connected During deployment the Serial Number i e SN of a node and the orientation of the VW sensors deployed against their site references must be reorded The connections between a customer chosen VW sensor and a Wisen VW Interface Node must strictly follow the rules stated in the relevant document All the VW Interface Node should be oriented upwards i e Jor Choo
8. mm while it is 6mm for the 8 VW Interface Node Notice 2 All the 5 wires must be connected to minimise electrical interference and loss of precision 6 The 4 VW Interface Node and the 8 VW Interface Node Connection Arrangement is shown in the figures below 2 2 P 19098 au aad a gt N FL y n grt d Figure 8 The 4 VW Sensors Connection Arrangements 2 82215155 wisen innovation www wiseninnovation co uk www wisencn com Page 11 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual Figure 9 The 8 VW Sensors Connection Arrangements Notice For the 4 VW and 8 VW Interface Nodes if some of the channels are not used please seal the cable gland properly 7 Power On once all the VW sensors are connected press the ON OFF button Now you should be able to see 3 LEDs flashing 3 times that means the node is on Then switch off the node to save power if the gateway is off 8 To validate the sensor data and to see that it works please refer to the lt lt WISENMESHNET System Evaluation User Guide gt gt Notice To properly deploy a node you must firstly have a Smart Gateway turned on before a node is powered on Otherwise a powered on isolated node will consume most of its power executing its mesh network searching mode Therefore battery life is shortened significantly
9. ogether with its internal high precision freguency sampling module and power unit This interface node is compatible with conventional geotechnical vibrating wire type sensors measuring in the range from 400 to 6000Hz This product satisfies the three fundamental identities of the system A Network Life Span to maximise battery life across the mesh network as a whole B Network Data Arrival Rate to minimise data packet loss C Single Node Environmental Coverage to maximise radio coverage Our product has IP66 and CE marking and is designed to work in a tough environment It is small in size reliable in performance easy for maintenance has high precision during sampling and has strong immunity to radio interference Figure 1 The 1 VW Overview in Photos 2 8221515 wisen innovation www wiseninnovation co uk www wisencn com Page 4 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual Figure 2 The 4 VW Overview in Photos Figure 3 The 8 VW Overview in Photos wisen innovation www wiseninnovation co uk www wisencn com Page 5 of 20 WISENMESHNET VW Interface Node User Manual Wisen Innovation Technical Doc No 2003 2 System Structure Layout Remote Server Smart Gateway Nodes Customer Sensor Tilt Node Data Log Mesh MCU Communicator D Cell P Camana Battery Strain Gauge N Crackmeter dd 1 4 8 VW Pressure
10. rocedure A Remote Inspection of historical data to identify the following a Whether the heart beat message has been sent back successfully at each time interval b Whether the battery voltage is too low if yes please change the battery unit C Whether the signal strength has become significantly weaker than it was previously If yes please check the antenna has been screwed on firmly B On site Inspection If all the above are good please arrange an on site inspection to check a Whether the VW Node has visible external damage b Check the box lid to see if it is firmly tightened c Whether the antenna is bent or damaged and that the node is not blocked by new construction e g hoardings d When it is possible check that the signal strength is normal by using a spectrum analyser e Open the lid to see whether the battery is firmly attached to its holder f Use a multi meter to measure the battery voltage If it is below the stop minimum voltage replace the battery g Make sure the 5 wires are connected properly if necessary please disconnect the wires to inspect Notices O i Case One If any change has been made from the list above please inspect the data at the remote server ii Case Two If all the actions from the list above have not cured the problem please contact Wisen We will be happy to help J 82215435 wisen innovation www wiseninnovation co uk www wisencn com Page 17 of 20 Wisen Innovation Techni
11. sing your VW Sensors Most problems encountered during monitoring will be caused by the quality of VW sensors including the cables especially in environments experiencing strong Electromagnetic EM interference such as national grid tunnels The essential requirements when choosing a VW sensor are listed below 2 1 The sensor cable insulation sleeve braid screen 4 coils one drain wire where 82215475 wisen innovation www wiseninnovation co uk www wisencn com Page 9 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual A The braid screen is connected to the box B The 4 coils are connected to the unit signal terminals C The1drain wire is connected to the electrical circuit ground 2 Reputable manufacturers Notice Wisen can always recommend an updated EMC solution and some suitable manufacturers around the world to our customers Please contact Wisen for further information 5 3 Deployment Procedures 1 Open the box Take the node out of the package and open its lid 2 Insert Battery By default a node does not contain a D Cell battery Therefore the battery needs to be inserted Notice ve and ve orientation must be correct otherwise the internal circuit may be damaged As our VW Interface Nodes has more than one battery installed special attention must be paid to avoid shorting the battery by the battery holder Notice batteries are inserted Head to Head in
12. suecesseneeees 8 S ODBSFQUOD Pi OC C l pit iras ne 9 5 1 System Deployment 9 5 2 Choosing yor VN SENSIS sa sas sussa 9 5 9 Deployment PIOCeQdUE OS uuu tuvan 10 5 4 VW Interface Node Mounting Options cccccesscccssseccesececesececeeseeeeeseceeeecesseeeeees 12 6 General Maintenance and Notification 16 7 Package and ACCES SONES aseessa oivat 18 o Ere T EUREN S EIER INN SENE UNI RM UN E 19 Nec R 20 23 fase www wiseninnovation co uk www wisencn com Page 3 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 1 Product Introduction The WISENMESHNET Vibrating Wire VW Interface Node is one of the key products in our patented WISENMESHNET geotechnical safety monitoring system Working together with the WISENMESHNET gateway product and our customers VW type sensors it intelligently delivers the real time VW derived deformation of the structure to the information centre The WISENMESHNET WW Interface Node operates using our core technology i e the WISENMESHNET Low Power Intelligent Wireless Sensor Network protocol t
13. the holder 3 Antenna Installation screw the antenna tightly onto the node Figure 6 Mesh Antenna 4 Sensor Installation To ensure a customer chosen VW sensor is deployed onto a structure correctly please strictly follow the corresponding manufacturer sensor instructions Once a VW sensor is deployed and pre tensioned please use a handheld readout device to confirm the readings 5 Sensor connections to Node A Strip the cable sleeving back by 8mm B The 5 wires from the cable are VW VW Thermistor Temperature Thermistor Temperature and Ground Please refer to the sensor datasheet to identify the purpose of the stripped wires 2 82215175 wisen innovation www wiseninnovation co uk www wisencn com Page 10 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual C Untighten the gland cover insert cable through the gland then connect the 5 wires correspondingly as shown in the Figure below D Once the wires are connected please tighten the gland cover firmly to ensure its IP rating on that channel Rs Cable XK Terminal F 8 Shield Line GND i ia E Temperature T E S ii Temperature T N N 5 Frequency WW y m iii Frequency VW FW v A t 4 GND PEN lt 8 ja 222 Figure 7 VW Sensor Wire Connections Notice 1 The cable gland diameter of the 1 VW and 4 VW Interface Nodes are both 8
14. tial cause unit damage Notice The orientation of battery can vary among products When disconnecting the battery please take special care not to apply excessive force otherwise the battery holder and the nearby circuitry may be damaged 3 Warning The battery in the product has a relatively high capacity so please take special care during storage and usage This product must not be disassembled under any circumstances to do so will void the warranty and may leave the product in a dangerous state f all the above are not followed the manufacturer cannot be held responsible for any damage and injury caused to the users 4 Caution Danger of explosion if battery is incorrectly replaced Replace only with the type recommended by the manufacturer When disposing of the batteries please contact your local authorities or dealer and ask for the correct method of disposal J 82215435 wisen innovation www wiseninnovation co uk www wisencn com Page 19 of 20 Wisen Innovation Technical Doc No 2003 WISENMESHNET VW Interface Node User Manual 9 Contact Wisen Innovation Ltd www wiseninnovation co uk Email enquiries wiseninnovation co uk 27 ezi wisen innovation www wiseninnovation co uk www wisencn com Page 20 of 20
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