NEW VERSION
There is a new version of this product available. The product on this page has been discontinued and the datasheet and manual are provided for informational purposes.
Product no longer stocked – limited availability
Contact for pricing and lead time--a minimum order quantity may apply
Contact for pricing and lead time--a minimum order quantity may apply
The G-Link2™ -LXRS® is a ruggedized wireless sensor node with high-speed sampling and optional integrated three-axis accelerometer or external single-axis accelerometer.
Product Highlights
- On-board triaxial, or external single axis MEMS accelerometer with up to +/-200 g measurement range
- Wireless framework is ideal for measuring vibration, and acceleration in remote applications.
- High resolution data with 16-bit A/D converter
- >User-programmable sample rates up to 10 KHz
- Transmit real-time data or log to memory.
- Small, lightweight IP67 enclosure
Wireless Simplicity, Hardwired Reliability
High Performance
- Node-to-node synchronization up to ±32 microseconds
- Scalable, long range wireless sensor networks up to 2 km
- User-programmable filters for optimized anti-aliasing
Ease of Use
- Internal or external accelerometer option for installation versatility
- Remotely configure nodes, acquire and view sensor data with Node Commander®.
- Optional web-based SensorCloud™ interface optimizes data storage, viewing, and analysis.
- Easy integration via comprehensive SDK
Cost Effective
- Out-of-the box wireless sensing solution reduces development and deployment time.
- Volume discounts
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General |
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Sensor input channels |
Single-axis MEMS accelerometer (option), 1 channel |
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Integrated sensors |
Triaxial MEMS accelerometer (option), 3 channels |
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Data storage capacity |
4 M bytes (up to 2,000,000 data points, data type dependent) |
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Accelerometer Channels (integrated or external) |
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Measurement range |
± 2 g or ± 10 g standard (± 5 g, ± 30 g, ± 50 g, ±100 g, or ± 200 g options available) |
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Accelerometer bandwidth |
0 to = 100 Hz @ -3 dB (high bandwidth option available) |
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Resolution |
16 bit |
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Accuracy |
0.3 % error (typical @ 25 Hz, 1/2 of dynamic range with sinusoidal input) |
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Noise |
± 2 g: 130 µ g/vHz , ± 10 g: 420 µ g/vHz (typical with 100 Hz anti- aliasing filter setting) |
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Anti-aliasing filter bandwidth |
Fifth order low-pass Butterworth filter, user programmable bandwidth from 26 Hz to 1 KHz |
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Integrated Temperature Channel |
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Measurement range |
-40 °C to 125 °C |
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Accuracy and resolution |
± 5 °C (over full range) , 16 bit |
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Sampling |
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Sampling modes |
Synchronized, low duty cycle, datalogging |
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Sampling rates |
Continuous sampling: 1 32 to 512 Hz Periodic burst sampling: 32 to 512 Hz Datalogging: 32 Hz to 10 KHz |
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Sample rate stability |
± 3 ppm |
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Network capacity |
Up to 2000 nodes per RF channel (and per gateway) depending on the number of active channels and sampling settings. Refer to the system bandwidth calculator: http://www.microstrain.com/configure-your-system |
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Synchronization between nodes |
± 32 μsec |
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Operating Parameters |
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Radio frequency (RF) transceiver carrier |
2.405 to 2.470 GHz direct sequence spread spectrum over 14 channels, license free worldwide, radiated power programmable from 0 dBm (1 mW) to 16 dBm (39 mW); low power option available for use outside the U.S.- limited to 10dBm (10mW) |
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Range for bi-directional RF link |
70 m to 2 km line of sight with RF power setting |
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RF communication protocol |
IEEE 802.15.4 |
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Power source |
Internal: 3.6 V dc,2.6 Ah, AA replaceable lithium battery External: 2.2 V dc to 5 V dc |
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Power consumption |
1 channel: 20.1 mA (average) 3 channels: 34.9 mA (average) |
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Operating temperature |
-40 ˚C to + 85 ˚C |
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Acceleration limit |
tested to 380 g |
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MTBF |
378,000 hours (Telcordia method, SR332) |
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Physical Specifications |
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Dimensions |
Internal accelerometer:68 mm x 85 mm x 33.5 mm with mounting tabs External accelerometer (option): 32 mm x 21.5 mm x 16 mm |
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Weight |
Node with internal accelerometer and battery: 178 grams Node with external accelerometer, cable and battery: 252 grams |
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Environmental rating |
IP67 |
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Enclosure material |
Aluminum and clear polycarbonate |
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Integration |
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Compatible gateways |
All WSDA® base stations and gateways |
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Compatible sensors |
LORD MicroStrain® accelerometer (external accelerometer option) |
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Connectors |
M5 screw-on IP67 connector (external accelerometer option) |
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Software |
SensorCloud™, SensorConnect™, Node Commander®, Windows 7 (or newer) |
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Software development |
Open-source MicroStrain Communications Library (MSCL) with sample code available in C++,Python,and.NET formats (OS and computing platform independent): http://lord-microstrain.github.io/MSCL/ |
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Regulatory compliance |
FCC (U.S.), IC (Canada), ROHS |
General Documentation
- G-Link2™ -LXRS® Product Datasheet
- G-Link2™ -LXRS® Quick Start Guide
- G-Link2™ -LXRS® User Manual
- Node Commander Wireless Sensing Software User Manual
- G-Link-2 Power Profile
- Wireless Products Comparison
Technical Notes
- Powering a Wireless Node with Sources Greater Than 9 Volts
- G-Link2™ -LXRS® Resonance Sweep
- G-Link2™ -LXRS® Sustained Acceleration Testing
- LXRS® Firmware Upgrades
- Synchronized Sampling on Startup
Videos
- NC QSG #1 General Communications
- NC QSG #2 Node Configuration
- NC QSG #3 Real-Time Streaming
- NC QSG #4 Legacy Low Duty Cycle
- NC QSG #5 Synchronized Sampling
- NC QSG #6 Armed Data Logging
What is Multipath?
Multipath is the phenomenon whereby a radio signal arrives at a receiver’s antenna by more than one path. This occurs by the reflection, diffraction, or scattering of radio waves from atmospheric ducting, reflection from water bodies or terrestrial objects (like mountains), etc.
Does Multipath impact signal strength?
Yes, multipath propagation of radio signals causes fading of the transmitted signal, which can be indicated by fluctuations in signal strength when received by the signal receiver.
How do I mitigate Multipath?
Pe-position base station or node to mitigate possible multipath interference.
Ensure a clear path to the antenna for the strongest signal, enhancing the strength of the strongest signal AND reducing the strength of the weaker signals.
Learn More: Mutipath Propagation
The WSDA-RGD (with internal GX3 inertial sensor) is configured to produce the following messages on startup.
GPS Data (1 Hz):
- UTC Time
- LLH Position
- NED Velocity
AHRS Data (100 Hz):
- Euler Angles
From this output the WSDA logs:
GPS (1 Hz):
- latitude
- longitude
- height above ellipsoid
- height above MSL
- horizontal accuracy
- vertical accuracy
- speed
AHRS (100 Hz):
- roll
- pitch
- yaw
The WSDA-RGD does not log any data until it gets a valid time, if it is set to get time from GPS only it will not log any output from the GX3 until the UTC timestamp from the GX3 is valid, even though the GX3 is producing valid AHRS data.
This data is not user configurable and is not available as a live stream through LiveConnect.
All LORD MicroStrain wireless sensor nodes, wireless base stations, and wireless sensor data aggregators are shipped from the factory with their radio frequency set to channel 15 (2.425 GHz).
This channel setting was established during 2012.
Previously all wireless products were set to channel 25 (2.475 GHz).
If you are mixing new nodes and base stations with older nodes and base stations, please be cognizant of these different channel settings.
The Node Discovery function of Node Commander will help you sort out which nodes are on what channels; Node Discovery is channel independent and allows the base station to communicate with any node, no matter what channel it is on
Sampling methods such as synchronized sampling, low duty cycle, network broadcast, etc. require that all nodes are on the same frequency so you will want to insure that you have adjusted the channels settings of the nodes to suit.
Microsoft Excel displays the timestamp contained in the wireless node data files incorrectly. If you were to open the CSV file with Microsoft Notepad, you will see that the timestamp is shown properly. In order to get Excel to show the human readable time, follow the below procedure:
- Highlight all of column A (column with the timestamp)
- Right click on highlighted region and select Format cells...
- Select the Number Tab in the window that open and choose Custom from the Category box
- Scroll to the bottom of the list in the Type box, find this entry: m/d/yyyy h:mm and click it
- Add to the entry an :ss.000 so it now looks like this: m/d/yyyy h:mm:ss.000
- Click OK
The timestamp will now be correct.
