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The TC-Link® -1CH -LXRS® is a miniature, specialized wireless sensor node designed for data acquisition from standard thermocouples.

Product Highlights

  • Standard mini thermocouple input and an embedded cold junction temperature compensation sensor
  • On-board linearization algorithms are software programmable to support a wide range of thermocouple types, including J, K, N, R, S, T, E, and B
  • 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
  • Simultaneously transmit real-time data and log to memory.

 

 

Datasheet Software
Where to Buy?
U.S. International OEM

Wireless Simplicity, Hardwired Reliability

High Performance

  • Node-to-node synchronization up to ±32 microseconds
  • Support for hundreds of simultaneous sampling wireless sensor nodes
  • Lossless data throughput under most operating conditions
  • Extended wireless communication range to 2km

Ease of Use

  • Rapid deployment with wireless framework
  • Standard miniature thermocouple blade connector
  • Remotely configure nodes, acquire and view sensor data with Node Commander®.
  • Easy integration via comprehensive SDK

Cost Effective

  • Reduction of costs associated with wiring
  • Volume discounts

General

Sensor input channels

Thermocouple input, 1 channel

Integrated sensors

Temperature CJC, 1 channel

Data storage capacity

2 Megabytes (up to 500,000 data points)

Thermocouple Input

Measurement range

-210 °C to 1820 °C (depending on the thermocouple type)

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 Cold Junction Compensation (CJC) Channel

Compensation 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, datalogging

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

See power profile : http://files.microstrain.com/TC-Link-1CH- LXRS-Power-Profile.pdf

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

63 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

Type J, K, N, R, S, T, E and B thermocouples

Connectors

Type-1 standard mini (SM) connectors for flat pin thermocouples

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.

In order to return any LORD MicroStrain® product either for repair or return, you must contact us for a Return Merchandise Authorization number (RMA). If you purchased directly from LORD MicroStrain® in the United States, please contact your Sales or Support Engineer to obtain an RMA.  If you purchased directly from a LORD MicroStrain® distributor, please contact your distributor to obtain an RMA.

To enable customers to try our standard products risk free, LORD MicroStrain® offers a 30 day return on the purchase of a starter kit. In order to take advantage of this offer, a purchase order or payment for the starter kit is required when the order is placed. 30 day trial details may be found at: http://www.microstrain.com/support/warranty

LORD MicroStrain® insures all products shipments to their full value unless the customer specifically states a different method.

The wireless nodes all have 2 Mbytes of datalogging memory.  This 2 Mbytes is organized into 8,191 ‘pages’ of memory, each page holds 132 data points.  The maximum number of data points that can be held in memory can be calculated as follows: 8,191 pages x 132 data points/page = 1,081,212 total data points.

Now the question arises, ‘how long can a node datalog before its memory is full?’. The answer is that it varies depending on how many channels are being sampled and what sampling rate has been set. Here are two examples:

Let’s set a V-Link-LXRS so that channel 1 is active with a datalogging sampling rate of 2048 samples per second and we launch continuous datalogging.  Our calculation would be:

  • 1 channel x 2,048 samples per second = 2,048 data points per second
  • 1,081,212 data points / 2,048 data points per second = 527 seconds
  • 527 seconds / 60 seconds per minute = ~9 minutes to fill the memory

Let’s set a G-Link-LXRS so that channels 1, 2 and 3 are active with a datalogging sampling rate of 32 samples per second and we launch continuous datalogging.  Our calculation would be:

  • 3 channels x 32 samples per second = 96 data points per second
  • 1,081,212 data points / 96 data points per second = 11,262 seconds
  • 11,262 seconds / 60 seconds per minute = ~187 minutes to fill the memory

In FINITE sampling, the user sets a total number of samples to be taken which equates to a time period.  Because the sampling rate per second is known, the user can adjust the number of samples to be taken to determine how long the sampling period will be.

In CONTINUOUS sampling, the user does not set the total number of samples and therefore does not set the time of the sampling period.  By selecting CONTINUOUS sampling, the user is instructing the system to sample data until the user manually stops the sampling (via software), the power is cycled, the on-board datalogging memory is full, the battery dies, the power fails, etc.

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