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LORD V-Link-200 User Manual

Wireless 8 channel analog input sensor node
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LORD USER MANUAL
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V-Link
-200
Wireless 8 Channel Analog Input Sensor Node

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Summary of Contents for LORD V-Link-200

  • Page 1 LORD USER MANUAL ® V-Link -200 Wireless 8 Channel Analog Input Sensor Node...
  • Page 2 LORD Sensing Systems 459 Hurricane Lane Suite 102 Williston, VT 05495 United States of America Phone: 802-862-6629 Fax: 802-863-4093 9:00 AM to 5:00 PM (Eastern Time US & Canada) http://www.microstrain.com sensing_support@LORD.com sensing_sales@LORD.com Document 8500-0063 Revision H Subject to change without notice.

  • Page 3: Table Of Contents

    ® V-Link -200 User Manual Table of Contents Wireless Sensor Network Overview Node Overview 2.1 Components List 2.2 Interface and Indicators 2.3 Node Diagnostics 2.4 Node Operational Modes System Operation 3.1 Software Installation 3.2 System Connections 3.3 Gateway Communication 3.4 Connect to Nodes 3.4.1 Automatic Node Discovery on Same Frequency 3.4.2 Automatic Node Discovery on Different Frequency 3.4.3 Manually Add Node...
  • Page 4 ® V-Link -200 User Manual 5.2 Optimizing the Radio Link 5.2.1 Range Test Connecting Sensors 6.1 Sensor Requirements 6.2 Wiring Recommendations 6.3 Sensor Power 6.4 Node Channels Designations 6.5 Terminal Block Connections 6.6 Pin Descriptions 6.7 Differential Input Channels 6.7.1 Differential Sensors 6.7.2 Differential Channel Raw Voltage 6.7.3 Measuring Small Voltages 6.8 Single-Ended Input Channels...
  • Page 5 ® V-Link -200 User Manual 8.1 Powering the Node 8.2 Using the Internal Node Battery 8.3 Connecting an External Power Supply Troubleshooting 9.1 Troubleshooting Guide 9.2 Using the Node Tester Board 9.3 Updating Node Firmware 9.4 Repair and Calibration 9.5 Maintenance Parts and Configurations 10.1 Standard Nodes 10.2 Node Accessories...

  • Page 6: Wireless Sensor Network Overview

    User Manual Wireless Sensor Network Overview The LORD Sensing Wireless Sensor Network is a high- speed, scalable, sensor data acquisition and sensor networking system.  Each system consists of wireless sensor interface nodes, a data collection gateway, and full- featured user software platforms based on the LORD Sensing Lossless Extended Range Synchronized (LXRS) data communications protocol. ...

  • Page 7: Node Overview

    To acquire sensor data, the V-Link-200 is used with a LORD Sensing data gateway such as the WSDA or WSDA-1500 Base.

  • Page 8: Components List

    ® V-Link -200 User Manual 2.1 Components List V-Link-200 sensor nodes come with the following components and options.  For a complete list of available configurations, accessories, additional system products and ordering information, see Parts and Configurations on page 88 Item...

  • Page 9: Interface And Indicators

    -200 User Manual 2.2 Interface and Indicators The V-Link-200 LEDs indicate operational modes showing when the node is booting up, idle and waiting for a command, sampling, resynchronizing, or if there is an error. Figure 2 - Interface and Indicators...

  • Page 10: Node Diagnostics

    ® V-Link -200 User Manual 2.3 Node Diagnostics In the Wireless Node Configuration menu under the Sampling tab, there are four user-set data points to provide information about the status of the Node. Figure 3 - Node Diagnostic Menu Lost Beacon Timeout: The time a node will search for a beacon before determining there is no base station connectivity.
  • Page 11 ® V-Link -200 User Manual Bad Sweep Count: The total number of failed sweeps. Transmit Info: Total Transmissions: Number of unique packets transmitted (not including retransmissions.) Total Retransmissions: Number of retransmitted packets. Packets are retransmitted when a node does not receive acknowledgment from the base station.
  • Page 12 ® V-Link -200 User Manual Figure 4 - Viewing Node Diagnostic Data...

  • Page 13: Node Operational Modes

    ® V-Link -200 User Manual 2.4 Node Operational Modes Sensor nodes have three operational modes: active , sleep , and idle . When the node is sampling, it is in active mode. When sampling stops, the node is switched into idle mode, which is used for configuring node settings, and allows toggling between sampling and sleeping modes.

  • Page 14: System Operation

    User Manual System Operation To acquire sensor data, nodes are used with any LORD Sensing data gateway, such as the WSDA-101 or WSDA-1500 Base, and a software interface. The gateway is the interface between LORD Sensing sensor nodes and the data acquisition computer. ...
  • Page 15 ® V-Link -200 User Manual...

  • Page 16: System Connections

    To acquire sensor data the following components are needed: a LORD Sensing wireless sensor node, a LORD Sensing data gateway, and a host computer with access to the data acquisition software. Nodes will communicate with any LORD Sensing data gateway. The sensor, node, gateway, and software selection are application-dependent, but the basic interfaces are the same.

  • Page 17: Gateway Communication

    ® V-Link -200 User Manual 3.3 Gateway Communication Drivers for the USB gateways are included the SensorConnect software installation.  With the software installed, the USB gateway will be detected automatically whenever the gateway is plugged 1. Power is applied to the gateway through the USB connection. Verify the gateway status indicator is illuminated, showing the gateway is connected and powered on.

  • Page 18: Connect To Nodes

    3.4.1 Automatic Node Discovery on Same Frequency If the base and node are on the same operating frequency, the node will populate below the Base Station listing when powering on the V-Link-200. Figure 10 - Node Discovered On Same Frequency 3.4.2 Automatic Node Discovery on Different Frequency...
  • Page 19 ® V-Link -200 User Manual Figure 11 - Node On Other Frequency Highlight the new node being added and select Move Node to Frequency (#). Figure 12 - Move Node...

  • Page 20: Manually Add Node

    ® V-Link -200 User Manual 3.4.3 Manually Add Node Adding a node manually requires entering the node address and its current frequency setting. From the Base Station, select the Manual Add Node tile, enter the Node Address, last known Frequency (factory default is 15), and select Add Node. Figure 13 - Add Node By Address If the node was successfully added, two confirmation messages will appear and it will be listed under the Base Station.
  • Page 21 ® V-Link -200 User Manual channel entered but it is likely there will be a communication error. If the node was not in idle, move the base station to the frequency of the node and issue a "Set to Idle" command. Figure 15 - Failure to Add Node...
  • Page 22 ® V-Link -200 User Manual...

  • Page 23: Configure Node

    The configuration menus show the channels and configuration options available for the type of node being used. For this example the V-Link-200 tester board is on channel 1. 1. Select Hardware > Input Range for channel 1, select +/-2 mV from the drop down menu.
  • Page 24 ® V-Link -200 User Manual Figure 17 - Node Configuration Menu 6. Use the following settings: a. Calibration Mode: Internal b. Number of Active Gauges: 4 c. Gauge Factor: 2 d. Gauge Resistance: 1000 e. Shunt Resistance: 499000 7. Select Start Shunt Cal for Slope and Offset calibrations. 8.

  • Page 25: Configure And Start Sampling

    ® V-Link -200 User Manual 3.6 Configure and Start Sampling To start a sampling session, nodes can be selected individually by selecting the Node name and then the Sample tile. To sample multiple nodes as a group, select the Base Station and then the Sampling Network tile. As a group, they will all be set to the same sampling mode.
  • Page 26 ® V-Link -200 User Manual Figure 20 - Network and Node Configuration Menu Synchronized - By selecting Synchronized, all nodes in the network will periodically synchronize their time clocks to a beacon that is broadcasted by the WSDA gateway. Each beacon contains a UTC timestamp, allowing nodes to timestamp their collected data within an accuracy of +/- 50 Each node will also buffer data and transmit this data in time-slots allocated prior to sampling.
  • Page 27 ® V-Link -200 User Manual the application requires consistent latency or can tolerate lost data. Node: Indicates the node address beside a box with a check mark. This box is checked by default to include the node in the sampling. Uncheck the box to exclude the node from the sampling.

  • Page 28: Viewing Data

    ® V-Link -200 User Manual Viewing Data 4.1 SensorConnect 4.1.1 Using Dashboards and Widgets Collected data is viewed on the Data page through the creation of dashboards and widgets. Think of dashboards as individual pages and widgets as an illustration on the page. Create multiple data widgets on each dashboard to display sampled data as a time-series graph, text chart, or a simple gauge that only displays the most current reading.

  • Page 29: Widgets Options

    ® V-Link -200 User Manual 4.1.3 Widgets Options The widget configuration menu is different for each type of widget but typically includes sensor or channel selections and widget settings such as titles and legends. After adding a widget, left click to select and configure it in the Channels and Settings left sidebar menu.

  • Page 30: Exporting Data Files

    MathEngine interface. Leveraging the open source API, SensorCloud can also be used to collect data from other LORD Sensing sensor products or third-party systems. Basic SensorCloud services are available to all users free of charge at:...

  • Page 31: Navigating Menus

    CSV Uploader - The data upload feature enables data from any source (such as non-Ethernet LORD Sensing gateways, or third-party sensor) to be uploaded to the SensorCloud platform. The data must be in the LORD Sensing CSV format.
  • Page 32 ® V-Link -200 User Manual as panning, zooming, and an overview graph for single-click access to data points or ranges. There are also use and management features such as viewing the meta-data and downloading, embedding, and tagging data graphs. Figure 27 - SensorCloud Data View Settings - The settings view provides options for adding meta-data, configuring the data displays for each channel, creating alerts based on data thresholds, setting the data timezone, and more.
  • Page 33 ® V-Link -200 User Manual ® Figure 28 - MathEngine View Figure 29 - FFT Graph in SensorCloud For more information about SensorCloud features and navigation, refer to the SensorCloud website:http://www.sensorcloud.com/, or contact LORD Sensing Technical Support. ...

  • Page 34: Node Installation

    Enclosures for the V-Link-200 are available from LORD Sensing. There are two mounting tabs on the node, with holes for fastening.  A DIN rail clip and three screws are included with the V-Link-200 for optional DIN rail mounting ( Figure 31 - DIN Rail Mount Option The node can be mounted in any orientation, but it is recommended that it is mounted in a way that optimizes wireless communications, typically with the antenna pointing upward.
  • Page 35 ® V-Link -200 User Manual Figure 31 - DIN Rail Mount Option...

  • Page 36: Optimizing The Radio Link

    ® V-Link -200 User Manual 5.2 Optimizing the Radio Link NOTE In the event of communication difficulties, it may be necessary to disable WIFI on the host computer, or use a USB extender when collecting data. The best method for ensuring optimal radio communication is to conduct an RF survey of the installation site.

  • Page 37: Range Test

    ® V-Link -200 User Manual 5.2.1 Range Test After establishing communication between node and gateway, use the range test feature in SensorConnect to monitor the signal strength and to optimally position the nodes, gateway, and antennae for installation. Maximum achievable range is determined by the gateway and node power settings (found in the device Configure menu) and is highly dependent on the physical environment surrounding the devices.

  • Page 38: Connecting Sensors

    User Manual Connecting Sensors The V-Link-200 wireless sensor node features eightanalog input channels that interface with a wide range of available sensor technologies, essentially converting them into wireless sensors. The node accommodates Wheatstone Bridge and analog sensors for applications in wireless strain gauge monitoring, such as torque, force, and pressure measurement, as well as sensors for other applications like wireless accelerometers, vibration sensors, magnetic field and displacement sensors.

  • Page 39: Wiring Recommendations

    ® V-Link -200 User Manual 6.2 Wiring Recommendations It is good practice that all sensor wiring be done with shielded cable. The shield is connected to the system ground only at one end to avoid ground loops. For sensitive small voltage signals (such as strain gauges) sensor wire leads should be of matched lengths so the lead resistance for each connection is as close to the other as possible.

  • Page 40: Sensor Power

    Output as a Switch on page 51 External battery holders and ruggedized outdoor housings that accommodate larger batteries are available for the V-Link-200 and can be used to extend battery operating capacity and duration. Node Accessories on page 88 6.4 Node Channels Designations...

  • Page 41: Terminal Block Connections

    ® V-Link -200 User Manual 6.5 Terminal Block Connections When inserting the sensor leads into the terminal block ensure the lead wire is being clamped under the terminal screw and not the lead insulation.  If the sensor wires are a very fine gauge, folding and tinning them may be useful to provide more area for the terminal screw to make contact.  ...

  • Page 42: Pin Descriptions

    ® V-Link -200 User Manual 6.6 Pin Descriptions Signal Description Range Type Node external power supply 7.5 to 36 V dc power sufficient current capacity See Powering An alternate to the node power jack. input for sensors the Node on page 73 Return power return...

  • Page 43: Differential Input Channels

    ® V-Link -200 User Manual 6.7 Differential Input Channels The differential measurement channels provide a 5 V dc excitation voltage to the sensor and measure the resulting sensor signal output.  The sensor signal goes through a programmable gain amplifier (PGA) and is then processed in the node by a18-bit analog-to-digital (A/D) converter over the 5 V dc range. ...

  • Page 44: Differential Sensors

    The following diagrams show how to connect these types of sensors. Note: Full- Bridge is the standard LORD Sensing offering. Calibration for Half-Bridge, Two Wire Quarter-Bridge, and Three Wire Quarter-Bridge requires the optional on-board bridge completion.
  • Page 45 ® V-Link -200 User Manual Figure 36 - Half and Quarter-Bridge Wiring...

  • Page 46: Differential Channel Raw Voltage

    ® V-Link -200 User Manual 6.7.2 Differential Channel Raw Voltage To set the V- Link- 200 to show the raw voltage that is being applied (in mV) to channels 1 - 4 (differential channels), enter the slope and offset for the input range being used. ( See Table 5 - below Input Range...

  • Page 47: Measuring Small Voltages

    ® V-Link -200 User Manual 6.7.3 Measuring Small Voltages Some sensor types that have small signal voltages (around 20 mV or less) may be better measured by biasing the sensor signal to the mid range of the node input range with a voltage divider, as Figure 37 - Small Voltage Measurement shown in Channel configuration will include adjusting the gain setting accordingly in the SensorConnect...

  • Page 48: Single-Ended Input Channels

    ® V-Link -200 User Manual 6.8 Single-Ended Input Channels Single-ended channels are designed to measure voltages with reference to the system ground and can accommodate many analog sensors types including accelerometers, pressure transducers, geophones, temperature sensors, inclinometers, and more.  These channels can also be used to measure reference voltages. ...
  • Page 49 ® V-Link -200 User Manual The following sections provide examples of how various sensors can be connected to the node.  For see Technical Support on page 87 other applications, Figure 38 - Single Ended Signal Processing...

  • Page 50: Measuring Small Currents (4 To 20Ma Sensors)

    User Manual 6.8.1 Measuring Small Currents (4 to 20mA Sensors) LORD Sensing nodes with analog inputs, such as theV-Link-200 and , support a wide range analog sensors including acceleration, vibration, strain, load cells, torque, pressure, magnetic fields, displacement, geophones, and more. To support these sensors, the nodes measure small voltage.

  • Page 51: Using The Excitation Output As A Switch

    ® V-Link -200 User Manual For battery life and current draw information see Using the Internal Node Battery on page 74 . The current limitations can be mitigated by using an external power source for the sensor or the node.  If using node excitation power is the best for the application, drain on the battery life can be limited by only switching the node excitation voltage on just before sampling and then turning it off afterward. ...

  • Page 52: Thermocouples

    ® V-Link -200 User Manual 6.10 Thermocouples Thermocouples can be used on the differential input channels by simply adding a high-impedance resistor to the input.  An example circuit is shown in Figure 40 - Connecting a Thermocouple Thermocouples should be calibrated by first selecting the appropriate baseline offset range, output range, or gain and then applying know loads and calculating the slope and offset values. ...

  • Page 53: Connecting Accelerometers

    User Manual 6.11 Connecting Accelerometers LORD Sensing bridge type accelerometers, such as the Triaxial Accelerometer Cubes, can be used with V-Link-200 to create wireless acceleration sensor platforms. Connect each accelerometer axis output to a node differential input channel.  Power is provided to the accelerometer from the node excitation supply. ...

  • Page 54: Sensor Settings

    User Manual Sensor Settings LORD Sensing sensor nodes are designed to accept many sensor types. The node configuration interface includes settings for measurement units and conversion values. There are preset measurement units, as well as a user-defined field.  Because the wireless sensor system is digital, the analog voltage readings from the sensors are converted into a digital equivalent value based on the volt-to-bit scale of the internal analog-to-digital voltage converter (A/D converter).

  • Page 55: Sensor Calibration

    The SensorConnect software facilitates multiple calibration methods.  Calibration calculators for some applications are also available by contacting LORD Sensing Technical Support. See Technical Support on page 87 Sensor manufacturer’s specifications or calibration: The slope and offset values, or the...
  • Page 56 ® V-Link -200 User Manual the sensor will be monitoring. The known load value from the reference device is then plotted against the measured output of the sensor to determine the calibration slope and offset. In SensorConnect this can be accomplished by taking sensors readings while applying the known loads.

  • Page 57: Example: Internal Shunt Calibration

    -200 User Manual 7.1.1 EXAMPLE: Internal Shunt Calibration NODE: V-Link-200, 18 bit (262144 A/D values) CHANNEL TYPE: differential analog input, 0 to 5 V dc input range SENSOR TYPE: strain gauge, Wheatstone Bridge, full bridge configuration SENSOR PARAMETERS: application voltage range: +/-2 mV This is the expected output voltage of the strain gauge based on the range of strain being measured in the application and the sensitivity of the gauge (volts/strain).
  • Page 58 Figure 42 - Node Configuration Menu 7. Use the following settings: a. Calibration Mode: Is either Internal (using the shunt resistor on the V-Link-200) or External (using an external shunt resistor). For this example, Calibration Mode is set to: Internal b.
  • Page 59 ® V-Link -200 User Manual 10. When the calibration is complete, the Wireless Node Configuration window will appear. 11. Select Apply Configuration to write to node memory.

  • Page 60: Calibration Lab Or Field

    Field calibrations are more improvised, although calibrated equipment can still be used to improve accuracy. NODE: V-Link-200, 18 bit (262144 A/D values) CHANNEL TYPE: differential analog input, 0 to 5 V dc input range...
  • Page 61 ® V-Link -200 User Manual 5. Select Calibration. 6. Use the following settings: a. Slope: 1 b. Offset: 0 c. Units: Bits 7. Select Apply Configuration. When the settings have been applied, a green pop up window will confirm the process is complete. Figure 45 - Node Configuration Menu...
  • Page 62 ® V-Link -200 User Manual 8. To start sampling, click on the node name and select Sampling 9. The node is included in the sampling by default and is indicated by a white check mark in the blue box to the left of the Node number. Uncheck any nodes to be excluded in the sampling. 10.
  • Page 63 ® V-Link -200 User Manual 15. Select Apply Configuration to save the values selected. 16. Collect data again with no load on the sensor. 17. Observe the value in the stream graph. If the value is not at zero, return to the Wireless Node Configuration menu, and adjust the offset by increasing or decreasing the value.

  • Page 64: Manufacturer Calibration

    See This table lists the gain settings available on the V-Link-200 differential input channels. The scaled input range is the approximate signal range of a sensor that would work with that gain, without considering the offset setting. on page 72 Multiply the sensor FSO by the gain setting to get the sensor voltage after amplification.

  • Page 65: Sensor Conversion Values

    The conversion values are entered through SensorConnect and saved in the node memory for the applicable channel. Conversion values for the V-Link-200 are determined mathematically from the sensor sensitivity specifications, from the sensor manufacturer calibration data, or through a calibration process.
  • Page 66 ® V-Link -200 User Manual Conversion Formula: The conversion formula assumes a linear relationship between the original units (such as volts or A/D bits) and new engineering units (such as strain), and it is expressed mathematically as y=mx+b , where y is the engineering units at a given point (measurement), m is the slope of the line that represents the linear ratio, x is the original unit value at a given point, and b is a unit conversion offset (in the case of unit conversions) or the fixed zero load offset of the sensor (in the case of measurement calibration coefficients).
  • Page 67 ® V-Link -200 User Manual Input Range (Gain): This sets the amplification of the signal within the node and is only available for channels with differential inputs and gain amplifiers. Hardware Offset: is the linear scaling offset coefficient, and it is typically the starting output value of the sensor with no load applied (in the original units).
  • Page 68 ® V-Link -200 User Manual Offset Scale (with Auto Balance):This feature is only available for channels with differential inputs, and assigns the position and value of the no load measurement of the sensor.  The offset scale level adjusts the operating window of the sensor measurements in reference to the entire range. For example, in mid scale the sensor no load measurement will be placed in the middle of the range, providing 50% of the range for positive readings and 50% of the range for negative readings.

  • Page 69: Calculating A Linear Slope

    ® V-Link -200 User Manual 7.2.1 Calculating a Linear Slope A data analysis tool such as Microsoft Excel can be used determine the slope of a linear relationship between sensor output A/D value (bits) and engineering units. This is not a calibration unless a calibrated reference device is used to measure the applied loads.
  • Page 70 ® V-Link -200 User Manual Figure 52 - Plot Trendline 6. The formula of the line is y=mx+b , where y is the engineering units at a given point (measurement), m is the slope of the line that represents the linear ratio, x is the A/D value at a given point, and b is the fixed zero load offset of the sensor.

  • Page 71: Differential Input Gain And Offset

    ® V-Link -200 User Manual 7.2.2 Differential Input Gain and Offset The combination of the gain, offset, and sensor signal cannot exceed the 0 to 5 V dc input of the analog to digital converter within the node. Resolution: Applying gain to the sensor signal can be used to maximize the measurement resolution.
  • Page 72 V-Link -200 User Manual This table lists the gain settings available on the V-Link-200 differential input channels. The scaled input range is the approximate signal range of a sensor that would work with that gain, without considering the offset setting.

  • Page 73: Powering The Node

    (see Safety Information on page 96). The V-Link-200 is susceptible to damage and/or disruption of normal operation from Electrostatic Discharge (ESD). ESD may cause the device to reset, which may require user intervention to continue data acquisition.

  • Page 74: Using The Internal Node Battery

    ® V-Link -200 User Manual 8.2 Using the Internal Node Battery The node is powered by four non-rechargeable, replaceable 3.6 V dc, 2.4 Ah, AA lithium batteries. If the node will not power, the batteries may need to be replaced. For more information on replacing the batteries See Replacing Batteries on page 96 Node battery life is highly dependent on the type of sensor connected, as well as operational...

  • Page 75: Connecting An External Power Supply

    ® V-Link -200 User Manual 8.3 Connecting an External Power Supply Apply only the input voltage range specified for the node in the polarity indicated.  Failure to do so could result in personal injury and permanent damage to the node (see Safety Information on page 96).

  • Page 76: Troubleshooting

    ® V-Link -200 User Manual Troubleshooting 9.1 Troubleshooting Guide...
  • Page 77 1.5 node or gateway is damaged If all power settings and connections have been verified, and the node is still unresponsive, contact LORD Sensing Technical See Technical Support on page 87 Support ( 2.1 node or gateway has no power Verify the node and gateway have power applied and that 2.
  • Page 78 If no conclusion can be determined or to send a device in for repair, contact LORD See Technical Support on page Sensing Technical Support ( 3.1 no communication to node or gateway...
  • Page 79 V-Link -200 User Manual Possible cause and recommended solution connections contact LORD Sensing Technical Support ( Technical Support on page 87 3.5 sensor channel not configured correctly Verify that the sensor is configured on the correct channel and has been enabled for data acquisition. ...

  • Page 80: Using The Node Tester Board

    ® V-Link -200 User Manual 9.2 Using the Node Tester Board The node tester board is used to verify node and network functions before sensors are connected, or for diagnostic purposes.  The node tester board is used only on differential input channels, and provides a fixed load so system functions can be verified including basic operations not related to the sensor, such as communication and sampling.
  • Page 81 ® V-Link -200 User Manual The following steps describe an example of how to use the tester board to sequence through the primary functions of the node and the wireless system. If the results indicated in the final steps are achieved, the system is fully operational for measuring a full bridge strain gauge. ...
  • Page 82 ® V-Link -200 User Manual 6. Select Hardware > Input Range for channel 1, select +/-2 mV from the drop down menu. 7. Under Hardware Offset, select Balance Target for channel 1, select Mid (50%) from the drop down menu. 8. Select Auto- Balance. When auto- balance is complete, a blue information window will indicate the balance result.
  • Page 83 ® V-Link -200 User Manual 11. Use the following settings: a. Calibration Mode: Internal b. Number of Active Gauges: 4 c. Gauge Factor: 2 d. Gauge Resistance: 1000 e. Shunt Resistance: 499000 12. Select Start Shunt Cal for Slope and Offset calibrations. 13.

  • Page 84: Updating Node Firmware

    SensorConnect version 5.0.0 or greater can be used to update any mXRS or LXRS node or gateway firmware to the most current version.  Updates are found on the LORD Sensing website.  Technical Support on page 87 for contact and website information.
  • Page 85 ® V-Link -200 User Manual 2. Once downloaded, extract the contents of the .zip file into a folder on the computer.  Verify there is a file with a .zhex extension. 3. Launch SensorConnect, and establish communication between the node and gateway as normal.

  • Page 86: Repair And Calibration

    LORD Sensing model number and serial number as well as your name, organization, shipping address, telephone number, and email.  Normal turn- around for RMA items is seven days from receipt of item by LORD Sensing. Warranty Repairs LORD Sensing warrants its products to be free from defective material and workmanship for a period of one (1) year from the original date of purchase.

  • Page 87: Maintenance

    Live Chat is available from the website during business hours: 9:00 AM to 5:00 PM (Eastern Time US & Canada) 9.5 Maintenance The replaceable batteries are the only user serviceable parts in the V-Link-200. For instructions on how to change the batteries, See Replacing Batteries on page 96...

  • Page 88: Parts And Configurations

    -200 User Manual Parts and Configurations 10.1 Standard Nodes For the most current product information, custom, and OEM options not listed below, refer to the LORD Sensing website or contact the LORD Sensing Sales Department. LORD Sensing Model Number Description...

  • Page 89: Recommended Sensors

    -200 User Manual 10.3 Recommended Sensors Many sensors can be used with the V-Link-200. The following sensors are supported for use with the V-Link-200 and are available from LORD .   For help with other sensor applications, see Technical Support on page 87...

  • Page 90: Wireless System Equipment

    User Manual 10.4 Wireless System Equipment The following system parts are available for use with the V-Link-200. For the most current standard, custom, and OEM product options, refer to the LORD Sensing website or contact the LORD Sensing Sales Department.
  • Page 91 -200 User Manual Product Ordering Products can be ordered directly from the LORD Sensing website by navigating to the product page and using the Buy feature.  http://www.microstrain.com/wireless For further assistance, our sales team is available to help with product selection, ordering options, and questions.

  • Page 92: Specifications

    ® V-Link -200 User Manual Specifications 11.1 Physical Specifications Dimensions: 128.8 mm x 82.5 mm x 31.0 mm 283 grams (with batteries), 217 (without Weight: batteries) Enclosure Environmental Rating: General purpose indoor IP67/NEMA4X Enclosure Dimensions: 177.8 mm x 127 mm x 152.4 mm Mounting: 4 x #8-32 UNC-2B Weight:...

  • Page 93: Operating Specifications

    ® V-Link -200 User Manual 11.2 Operating Specifications Parameter Specifications General Differential analog, 4 channels Sensor input channels Single-ended analog, 4 channels Integrated sensors Internal temperature, 1 channel Data storage capacity 16 M Bytes ( 5+ million data points) Analog Input Channels Differential: ±...

  • Page 94: Radio Specifications

    2) This device must accept any interference, including interference that may cause undesired operation of the device. Changes or modifications, including antenna changes not expressly approved by LORD Corporation could void the user’s authority to operate the equipment.

  • Page 95: Frequency Setting

    ® V-Link -200 User Manual 11.4 Frequency Setting NOTE The gateway can automatically manage nodes operating on different frequencies by using the Node Discovery feature in SensorConnect. In this routine, the gateway listens for node broadcasts on the frequency channel to which it is set. If the node is in normal boot-up mode, it will provide the broadcast when it is initially powered-on, and it will broadcast on all channels.

  • Page 96: Safety Information

    12.1 Replacing Batteries 1. Remove the screws on both sides of the face plate to open the V-Link-200. 2. It is important to replace all four of the batteries at the same time, observing the correct polarity orientation.

  • Page 97: Power Supply

    User Manual 12.3 Power Supply Apply only the input voltage range specified for the V-Link-200 .  Connect to a power source that is near the device, is accessible, and adheres to all national wiring standards. Compliance with wiring standards is assumed in the installation of the power source and includes protection against excessive currents, short circuits, and ground faults.

  • Page 98: References

    13.1 Related Documents Many references are available on the LORD Sensing website including product user manuals, technical notes, and quick start guides.  These documents are continuously updated, and new applications are added. They may provide more accurate information than printed or file copies. ...

  • Page 99: Glossary

    ® V-Link -200 User Manual Glossary These terms are in common use throughout the manual: A/D Value: the digital representation of the analog voltages in an analog-to-digital (A/D) conversion. The accuracy of the conversion is dependent on the resolution of the system electronics; higher resolution produces a more accurate conversion.
  • Page 100 ® examples of nodes manufactured by LORD MicroStrain ® Node Tester Board: The node tester board is a device designed by LORD MicroStrain that can be plugged into nodes to test their functionality. Offset: When describing a mathematically-linear relationship, the offset is the value where the line that represents the relationship in a graph crosses the y -axis. ...
  • Page 101 ® V-Link -200 User Manual Periodic Burst Sampling: a mode of operation in which the node is sampled for a fixed window of time (burst) and then repeats that window at set intervals. The burst duration and time between bursts is configurable.
  • Page 102 ® V-Link -200 User Manual Transmission rate: the number of data packets per transmission window, measured in seconds. Depending on the sampling mode and settings it will be between 1 and 64 packets/second. Transmission window: the time allowed for one data transmission at the automatically determined transmission rate USB: Universal Serial Bus is a serial data communications protocol WSN: Wireless Sensor Network describes a distribution of sensors and data acquisition equipment...

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