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The RTD-Link -LXRS® is a specialized node designed for data acquisition from standard resistance temperature detectors.

Product Highlights

  • Features a standard resistance temperature detector (RTD) input and an embedded temperature sensor
  • Software-programmable on-board linearization algorithms designed to support 2 or 4 wire PT100 RTD type sensors
  • Small form factor, low power consumption, and wireless framework optimizes deployment in remote and long-term monitoring applications.
  • High resolution data with 24-bit A/D converter
  • User-programmable sample rates up to 64 Hz
  • Simultaneously transmit real-time data and log to memory
Datasheet Software
Where to Buy?
U.S. International OEM

Wireless Simplicity, Hardwired Reliability

High Performance

  • Measurement accuracy to ±0.1% of full scale
  • Node-to-node synchronization up to ±32 microseconds
  • Scalable, long range wireless sensor networks up to 2 km
  • Lossless data throughput under most operating conditions

Ease of Use

  • 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

General

Sensor input channels

RTD sensor input, 1 channel

Integrated sensors

Temperature, 1 channel

Data storage capacity

2 Megabytes (up to 500,000 data points)

Resistance Temperature Detector (RTD) Sensor Input

Measurement range

-200 °C to 850 °C (depending on the RTD sensor)

Accuracy

± 0.1 % of full scale or ± 2 °C, whichever is greater

(does not include error from sensor or wire)

Resolution

0.0625 °C, 24 bit

Repeatability

± 0.1 °C (does not include error from sensor or wire)

Integrated Temperature Channel

Measurement range

-40 °C to 85 °C

Accuracy

± 0.5 °C (from 0 to 70 °C)

Resolution

12 bit

Sampling

Sampling modes

Synchronized, low duty cycle

Sampling rates

Continuous sampling: 1 sample/hour to 64 Hz

Datalogging: 1 sample/hour to 64 Hz

Sample rate stability

± 3 ppm

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

Synchronization between nodes

± 32 μsec

Operating Parameters

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)

Range for bi-directional RF link

70 m to 2 km line of sight with RF power setting

RF communication protocol

IEEE 802.15.4

Power source

Internal: 3.7 V dc, 250 mAh, rechargeable Li-poly battery

External: 3.2 V dc to 9 V dc

Power consumption

25 mA at idle

Operating temperature

-20 ˚C to + 60 ˚C (extended temperature range available with custom battery/enclosure, -40 ˚C to + 85 ˚C electronics only)

Acceleration limit

500 g standard (high g option available)

Physical Specifications

Dimensions

50 mm x 58 mm x 21 mm

Weight

49 grams

Enclosure material

ABS plastic

Environmental rating

Indoor use (unless mounted in a sealed enclosure)

Integration

Compatible gateways

All WSDA® base stations and gateways

Compatible sensors

2 and 4 wire PT100 resistance temperature detectors (RTD)

Connectors

Screw terminal block

Software

SensorCloud™, SensorConnect™, Node Commander®, Windows 7 (or newer)

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/

Regulatory compliance

FCC (U.S.), IC (Canada), ROHS

 

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.

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Please use the form below to contact us or call 802 862 6629.