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TC-Link® 1 Channel Wireless Thermocouple Node
Complete, cold junction compensated, linearized one channel wireless thermocouple
node. Supports J,K,R,S,T,E,B,N thermocouple types.
Features and Benefits
- Plug and play: quickly add wireless sensing and logging capabilities to existing thermocouples and probes
- Supports type J, K, N, R, S, T, E, B thermocouples with on-board cold junction compensation
- simultaneous data acquisition from multiple sensors
- Transmit data in real time or log data to 2MB, non-volatile flash memory
- Self-calibrating 24 bit sigma-delta analog to digital converter
- Sample rates from 2 Hz to 1 sample every 17 minutes
- 2.4 GHz IEEE 802.15.4 spread spectrum radio with 70m line-of-sight range (100 m with high gain antenna), license free worldwide
- Miniature enclosure footprint allows unobtrusive coupling of nodes with existing sensors
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Introduction
TC-Link®-1CH complete wireless thermocouple node, designed for integration with wireless sensor networks,
combines full thermocouple conditioning with award-winning MicroStrain® wireless systems.
This amazing new wireless sensor node features a standard thermocouple input connector with an embedded cold junction
temperature sensor. On-board linearization algorithms are software programmable to support a wide range of thermocouple
types (J, K, N, R, S, T, E, B).
The node can simultaneously log data to internal memory, and transmit real-time data to a base station transceiver at
a pre-programmed rate. At the base station, data is displayed and logged for further analysis. Embedded software provides
the user-programmable wireless transmission rates, from two samples per second to one sample every seventeen minutes. And
since each node has a unique address, a single host transceiver can address hundreds of sensor nodes.
Enclosures include internal, 550 mAh, high-capacity primary or 220 mAh rechargeable, Lithium-ion batteries. To further
enhance the nodes long-term data transmission capabilities, the processor conserves battery power by using a micropower
sleep mode between samples.
The TC-Link®-1CH wireless thermocouple node features an open-architecture bidirectional communications
standard (IEEE 802.15.4 spread spectrum 2.4 GHz), which supports license-free operation worldwide. Starter kits
include TC-Link®-1CH wireless thermocouple nodes, base stations, and PC software for wireless node
configuration, data acquisition, and data display.
Also included is a complete Data Communications Protocol manual to enable users to develop their own applications.
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Applications
Civil structures sensing: concrete maturation
Industrial sensing networks: machine thermal management
Food and transportation systems: refrigeration, freezer performance monitoring
Advanced manufacturing: plastics processing, composite cure monitoring
Assembly line testing with smart packaging
Cryogenic applications
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Thermocouple Inputs Supported |
Software selectable: Type J, K, R, S, T, E, B, N six input channel, one ambient CJC channel. |
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Standard Thermocouple Measurement Range |
J -210 to 760˚C
K -200 to 1372˚C
R -50 to 1664˚C
S -50 to 1664˚C
T -200 to 400˚C
E -200 to 1000˚C
B 250 to 1820˚C
N -200 to 1300˚C |
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Temperature Measurement Accuracy |
±0.1% full scale or ±0.2˚C whichever is greater (does not
include errors due to TC wire or transducer) |
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Temperature repeatability |
±0.1˚C (does not include errors due to TC wire or transducer) |
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Temperature resolution |
0.0625˚C |
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Cold Junction Compensation Range |
-20 to 85˚C |
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Thermocouple Connector |
Type 1 standard mini (SM) connectors for flat pin TC inputs |
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Analog to Digital (A/D) Converter |
24 bit Delta-Sigma A/D |
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Sample Rate |
Programmable from 2 samples/second to 1 sample/17 minutes for datalogging or LDC
modes |
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Datalogging Mode |
Log up to 90,000 data sets (up to 630,000 data points) |
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Nodes Per Base Station |
Supports up to 100 nodes per base station |
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Sample rate stability |
Datalogging and LDC modes ±25 ppm |
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Radio Frequency (RF) Transceiver Carrier |
2.4 GHz, direct sequence spread spectrum, license free worldwide (2.405 to 2.480
GHz) - 16 channels, radiated power 0 dBm (1mW) |
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Range for Bi-directional RF Link |
Up to 70 m line of sight, up to 100 m with high gain antenna on base station |
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RF Data Packet Standard |
IEEE 802.15.4, open communication architecture |
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PC Communications |
115,200 baud over USB |
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Internal Li-Ion Battery |
550 mAh, high capacity, lithium-ion primary battery |
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Power Consumption (battery life) with 550 mAh battery |
2 samples per second - 0.8 mA (23 days)
1 sample per second - 0.48 mA (1.5 months)
3 samples per minute - 0.1 mA (6 months)
1 sample per minute - 0.09 mA (7 months, 13 days) |
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Operating Temperature |
-20˚C to +60˚C with standard internal battery and enclosure, extended temperature
range optional with custom battery and enclosure. -40˚C to +85˚C for electronics
only |
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Maximum Acceleration Limit |
500 g standard (high g option available) |
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Dimensions |
54.8 mm x 29.5 mm x 15.5 mm (with enclosure)
50.3 mm x 25.4 mm x 5.9 mm (circuit board assembly only)
For dimensioned print go to Documentation tab |
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Weight |
30.1 grams (with enclosure and battery)
4.7 grams (circuit board assembly only) |
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Enclosure Material |
ABS plastic |
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Compatible Base Stations |
USB, RS-232, Analog, WSDA® |
Software |
TC-Link® Node Monitor Windows XP/Vista compatible
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General Documentation
Technical Notes
FAQ's
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