Lord MicroStrain G-Link-200 User Manual Download Page 10 | Manualshive

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G-Link

®

-200

User Manual

10

2.3

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. The node will automatically
go into the ultra low-power sleep mode after a user-determined period of inactivity. The node will not
go into sleep mode while sampling.

Figure 2 - Node Operational Modes

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Summary of Contents for G-Link-200

Page 1: ...G Link 200 Wireless Accelerometer Node LORD USER MANUAL...

Page 2: ......

Page 3: ...eless Sensor Configuration 19 4 1 Hardware Configuration 19 Figure 11 Node Configuration Menu 19 a Calibration Configuration 20 Figure 12 Wireless Sensor Calibration Menu 20 b Sampling Configuration 2...

Page 4: ...32 Time Series Widget Menu 41 Figure 33 Exporting Data 42 7 Installation 43 7 1 Mounting Recommendations 43 Figure 34 Mounting the Node 43 i Range Test 46 Figure 36 Range Test Menu 46 Figure 37 Range...

Page 5: ...eferences 61 http www microstrain com support documentation 61 Technical Support 61 b Product Ordering 62 http www microstrain com wireless 62 Sales Support 62 c Related Documents 62 Table 9 Related D...

Page 6: ...types of sensors including accelerometers strain gauges pressure transducers load cells torque and vibration sensors magnetometers 4 to 20mA sensors thermocouples RTD sensors soil moisture and humidi...

Page 7: ...y IPSrms Amplitude Grms and G pk pk and Crest Factor allowing long term monitoring of key performance indicators while maximizing battery life G Link 200 inputs are 20 bit resolution with 0 1 full sca...

Page 8: ...following components and options For a complete list of available configurations accessories additional system products and ordering information see Parts and Configurations on page 53 Item Descriptio...

Page 9: ...nchronizing or if there is an error Indicator Behavior Node Status Device status indicator OFF Node is OFF Rapid green flashing on start up Node is booting up 1 slow green pulse per second Node is idl...

Page 10: ...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 The node will automatically go into th...

Page 11: ...le range will cause excessive mechanical wear Over time damage can accumulate and may cause the device to become defective Care should be taken not to subject the sensor to accelerations beyond twice...

Page 12: ...oud is an optional data collection visualization analysis and remote management tool It is based on cloud computing technology and is accessed directly from a web connection For more information go to...

Page 13: ...plied to the gateway through the USB connection Verify the gateway status indicator is illuminated showing the gateway is connected and powered on 2 Open the SensorConnectsoftware 3 The gateway should...

Page 14: ...and node address ranges 3 3 1 Add A Node Via Node Discovery If the base and node are on the same operating frequency the node will populate below the Base Station listing when powering on the G Link 2...

Page 15: ...ency 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 6 Add Node By Address If the node was su...

Page 16: ...ld indicate the node is not in idle mode or it may be on another frequency If Add Node Anyway is selected it will associate that node with the channel entered but it is likely there will be a communic...

Page 17: ...le with a number appears next to Base Station the node is operating on a separate radio channel Select the Base Station and then select the Nodes on Other Frequencies tile Figure 9 Nodes On Other Freq...

Page 18: ...G Link 200 User Manual 18 Figure 10 Move Node...

Page 19: ...8 192 g l Low Pass Filter and Group Delay The accelerometer provides two filter stages for limiting bandwidth and maintaining excellent noise performance The first stage is an analog fixed frequency...

Page 20: ...75 104 5 27 52 10 31 26 20 38 Table 2 Group Delay l High Pass Filter The accelerometer contains an optional high pass filter which is disabledbydefault Thehigh passfiltercornerfrequencyiseffectedbyth...

Page 21: ...tting data in floating point format The coefficients are applied automatically by SensorConnect when the node is outputting data in signed 16 bit or signed 24 bit formats For the available data types...

Page 22: ...ewillsavepowerinthisstatewithoutuserinterventionuntilthebeaconreturns Within two minutes of the beacon returning the node will automatically begin sampling and transmitting dataagain l Diagnostic Info...

Page 23: ...ternal Temperature Valid range 40 to 125 C sint8 Celsius Low Battery Indicator 0 good 1 low 2 critical sensor will stop sampling uint8 External Power 0 not connected 1 external power con nected uint8...

Page 24: ...faultOperationMode thenodewillautomaticallyre enterthesamplemodeit performedlastwithallcurrentsettings DisableUserInactivityTimeouttoavoidthenode automatically changingstates l Check RadioInterval Whi...

Page 25: ...d sampling mode by pressing and holding the start button until the LED light turnsblue l Single node FromDevices selectNode Sampling ApplyandStartNetworktobegin collectingdata from a singlewirelesssen...

Page 26: ...ontains a UTC timestamp allowing nodes to align their collected data within an accuracy of 50 us Each node will also buffer data and transmit this data in time slots allocated prior to sampling Using...

Page 27: ...Raw Waveform Channels There are two options for data output from the G Link 200 including raw waveform channels and derived data channels The raw channels provide waveform data directly from the senso...

Page 28: ...be at least 32 times slower than the sample rate See Derived Channel Variables on page 29 l RMSiscalculatedbyaccumulatingthemeansquaredofeachchunk dividingbythe numberof chunksinthe window and takingt...

Page 29: ...Variables i Windows When performing a derived calculation on sampled data a window is used to provide a rate to transmit derived calculations and a range of time to derive from The length of a window...

Page 30: ...a Window NOTE A window must contain at least 32 samples For continuous this means that the derived period must be at least 32 times as long as the sample period Burst is not limited by this restrictio...

Page 31: ...Continuous l Burst Figure 20 Derived Data Chunks iii Under sampling Under sampling happens when there are not enough samples to accurately calculate a value for a derived channel The user should pick...

Page 32: ...input signal periods sampled within a window the more accurate the calculation will be d Sampling Operations Options There are four sampling operations options for the G Link 200 including Continuous...

Page 33: ...smit and orlogthedataifoneoftheconfiguredthresholdconditionshasbeenmet Whenthe conditionismet allactivesensorchannelswilltransmitand orlogbothpre andpost event data Thebenefitsofthisoperationmodeinclu...

Page 34: ...e 23 Data Type Menu l Float 4 Bytes Thenodeappliescalibrationcoefficientslocallyandreports measurementsas floatingpoint values l Int24 3 Bytes The node sends its20 bit measurements as signed24 bitvalu...

Page 35: ...00 User Manual 35 f Output Operation There are three options for managing data acquired from the G Link 200 The user can transmit collected data log the data to flash memory or do both Figure 24 Data...

Page 36: ...upload to the host computer or SensorCloud SensorCloud is based on cloud computing technology and is designed for long term collecting and preservation of data Features include time series and visuali...

Page 37: ...25 SensorCloud Log in or Register ii Navigating Menus The SensorCloud interface has six main views When logging in as a registered user the Device view is the default Navigate to other views by clicki...

Page 38: ...o be uploaded to the SensorCloud platform The data must be in the LORD Sensing CSV format Data This view is only available after a device is selected It displays data that is collected from sensor nod...

Page 39: ...faces with the SensorCloud graphing view for faster processing Users can write their own algorithms for custom applications Refer to the MathEngine website for more information http sensorcloud com ma...

Page 40: ...This format provides an easy way to organize many sensors and networks and it allows the information to be displayed in the most appropriate layout Figure 30 Viewing Data ii Navigating Graphs Use the...

Page 41: ...e it in the Channels and Settings left sidebar menu Under Channels the channel s for the widget can be enabled and disabled Figure 31 Widget Settings Menu iv Time Series Widget Menu The Time Series Wi...

Page 42: ...nual 42 v Exporting Data Files To export data to a csv file select the Export Data button on the Time Series widget Export name the document save to the preferred location on the host computer Figure...

Page 43: ...e on the base of the G Link 200 For proper coupling of the accelerometer to the substrate being measured use the mounting hole and a screw to fasten the node to a rigid surface This will reduce higher...

Page 44: ...G Link 200 User Manual 44 Figure 35 Installing The Magnetic Base...

Page 45: ...ground caninterfereat thereceiver Generally thehigher abovethegroundthebetter l Minimize Radio Frequency Interference RFI from other wireless devices especially those operating in the same frequency r...

Page 46: ...re menu and is highly dependent on the physical environment surrounding the devices 1 Select the node name Range Test Figure 36 Range Test Menu 2 RSSI is a measure of signal strength between the node...

Page 47: ...G Link 200 User Manual 47 8 Troubleshooting a Troubleshooting Guide...

Page 48: ...indicator LED to determine the device s state boot idle sample or sleep If the node is sampling or sleeping it cannot be configured In execute the Set to Idle command to put the node in idle state al...

Page 49: ...teway Verify connections and power to the node and gateway Verify they are powered on and communicating with the software Enter a configuration menu to verify that the node can be accessed 3 2 samplin...

Page 50: ...INDICATOR Red LED present on start up if Red LED persists replace with 3 new batteries 4 2 damage to the node If Red LED persists after replacing the batteries there is damage to the node Contact LORD...

Page 51: ...he most current version Updates are found on the LORD Sensing website See Technical Support on page 61 for contact and website information 1 Download the Firmware Upgrade file from the LORD Sensing we...

Page 52: ...m 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 LORD Sensing will...

Page 53: ...rew Washer magnetic 1 pack 6306 1021 Washer magnetic 5 pack 6036 1022 Table 7 Node Accessories b Wireless System Equipment The following system parts are available for use with the G Link 200 For the...

Page 54: ...k 200 User Manual 54 10 Specifications a Physical Specifications Dimensions 46 6 mm x 43 mm x 44 mm Mounting 28 UNF 2B 4 8 mm 19 in DP Weight With 3 batteries 122 grams Enclosure Environmental Rating...

Page 55: ...Derived channels Velocity IPSrms Amplitude Grms and Gpk pk and Crest Factor Sampling rates 1 sample hour to 4096 samples second Sample rate stability 5 ppm Network capacity Up to 128 nodes per RF cha...

Page 56: ...their rated range while in operation To protect themselves from occasional over range events the accelerometer s control circuitry will temporarily reduce drive power to the sense element if accelerat...

Page 57: ...ent on the operational parameters such as sample mode and r a t e M o r e active channels and higher sample rates equate to decreased battery life b Replacing Batteries 1 Remove the cap from the G Lin...

Page 58: ...rning the product for proper recycling and disposal d Disposal and Recycling The G Link 200 contains internal batteries printed circuit boards and electronic components These items are known to contai...

Page 59: ...approved by LORD Corporation could void the user s authority to operate the equipment Cet appareil est conforme la Partie 15 des R gles de la FCC des tats Unis et aux RSSS exempts de licence d Industr...

Page 60: ...g broadcast messages from the gateway to multiple nodes including the synchronized sampling beacon all nodes must be on the same channel as the gateway in orderto receivethebroadcast Assigningchannels...

Page 61: ...ls http www microstrain com support documentation For further assistance our technical support engineers are available to help with technical and applications questions Technical Support sensing_suppo...

Page 62: ...more accurate information than printed or file copies Document Where to find it Online Wireless Network Calculator http sensorcloud com onlyCalc true SensorCloud Overview http www sensorcloud com Sen...

Page 63: ...nel measurement settings offsets hardware gain and calibration values Continuous Sampling a mode of operation in which the node is sampled continuously until stopped or sampled continuously for a fixe...

Page 64: ...sensor network Node The node is the wireless transceiver to which the sensor s is connected providing communication with the gateway The G Link LXRS V Link LXRS and SG Link LXRS are examples of nodes...

Page 65: ...iggered continuous or periodic The nodes have several sampling modes that employ these types of sampling Sampling Rate the frequency of sampling Slope When describing a mathematically linear relations...

Page 66: ...rial Bus is a serial data communications protocol WSN Wireless Sensor Network describes a distribution of sensors and data acquisition equipment that autonomously monitors environmental characteristic...

Page 67: ...ing how it is set up for data acquisition It includes settings such as sampling mode rate number of active channels channel measurement settings offsets hardware gain and calibration values Continuous...

Page 68: ...eiving antennas in a radio network As stated it means the antennae are in view of each other with no obstructions LXRS Lossless Extended Range Synchronized is the proprietary LORD Sensing data communi...

Page 69: ...nditions producing apredictable electrical signal Sleep a command transmitted to the node to put it into sleep configuration Sampling the process of taking measurements from a sensor or device Samplin...

Page 70: ...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 W...

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