NI WSN-3226 4 Ch, 20-Bit, Programmable Voltage/RTD Combination Node

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  • Programmable with the NI LabVIEW Wireless Sensor Network (WSN) Module
  • Customize node to extend battery life, increase performance, and perform local control and analysis
  • Adds support for RTDs, potentiometers, and other resistance-based measurements
  • Up to 3-year battery life
  • 2 DIO channels configurable for input, sinking or sourcing output, and value change detection
  • Industrial ratings: -40 to 70 °C operating temperature, 50 g shock, 5 g vibration
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The programmable NI WSN-3226 measurement node adds resistance-based measurements, such as those from RTDs and potentiometers, to the NI wireless sensor network (WSN) platform. With this node, you can combine temperature and voltage measurements on a single device. The WSN-3226 provides four analog input channels that you can configure on a per-channel basis for ±10 V measurements or resistance-based measurements. The device also features two bidirectional digital channels with industrial voltage ranges that you can configure on a per-channel basis for input, sinking output, or sourcing output. The digital channels can also be programmed to respond to digital value change events. The 18-position screw-terminal connector delivers direct connectivity to sensors, and the device offers a 12 V, 50 mA sensor power output that you can use to drive sensors requiring external power. You can power the measurement node with four 1.5 V, AA alkaline or lithium battery cells, with operation up to three years on battery power, or you can externally power the node with a 5 to 30 V supply (not included).

The WSN-3226 also features 50/60 Hz filtering and two operational modes, high speed and high resolution, so that you can optimize power and throughput trade-offs for your application. Additionally, the device supports battery backup; in the event external power is lost, the device automatically switches over to battery power.

With the LabVIEW Wireless Sensor Network (WSN) Module, you can use graphical programming to customize the node’s behavior, adding intelligence to extend battery life; increase analog and digital input performance; perform local control, analysis, and data reduction; and interface with custom sensors. The default behavior of an NI measurement node is to transmit every sample acquired to the gateway; however, this is not a requirement for many applications. You can use LabVIEW WSN to average samples over time and provide threshold or deadband logic, so you can extend battery life by transmitting only meaningful data. Additionally, you can increase acquisition rates on the node by not incurring the overhead of transmitting each sample after acquisition. Using LabVIEW WSN, you can then perform processing and data reduction on the node. LabVIEW WSN applications are downloaded wirelessly to NI WSN measurement nodes, allowing seamless updates to deployed nodes.

A 2.4 GHz radio is used to wirelessly transmit data to the WSN gateway, where you can connect through Ethernet to other network devices. NI-WSN software delivers easy network configuration in NI Measurement & Automation Explorer (MAX) and data extraction with LabVIEW software.

You can configure the WSN-3226 as a mesh router to increase network distance and connect more nodes in your WSN system. You can connect eight end nodes (star topology) or up to 36 measurement nodes (mesh topology) to a single WSN gateway, with outdoor range up to 300 m with line of sight. The device also offers industrial temperature and shock and vibration ratings.

Wireless products require certification based on the geographic region of use. Consult the Wireless Product Certifications document linked from the Resources tab to determine which products are certified in your region.

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Specifications Documents

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Specifications Summary

General
Product Name NI WSN-3226 (programmable)
Product Family Wireless Sensor Networks
Part Number 781295-12 , 781295-02
Operating System/Target Real-Time , Windows
LabVIEW RT Support Yes
Form Factor Wireless
Measurement Type Resistance , Temperature , RTD , Digital , Thermistor , Voltage
Product Certifications IEC , FCC , RoHS , UL - Product Safety , ICES , WEEE , CE
RoHS Compliant Yes
Mounting Options DIN
Storage 188 kB
Analog Input
Channels 4 , 0
Single-Ended Channels 4
Differential Channels 0
Resolution 20 bits
Sample Rate 1 S/s
Max Voltage 10 V
Maximum Voltage Range -10 V - 10 V
Input Impedance 1 MOhm
Available Filters 60 Hz , 50 Hz
Analog Output
Channels 0
Digital I/O
Bidirectional Channels 2
Input-Only Channels 0
Output-Only Channels 0
Timing Software
Logic Levels TTL , 24 V
Input Current Flow Sinking , Sourcing
Output Current Flow Sinking , Sourcing
Current Drive Single 0.25 A
Current Drive All 0.5 A
Maximum Input Range 0 V - 30 V
Counter/Timers
Counters 0
Wireless
Wireless Sensor Network Power Battery or External Powered
Node Programmability Programmable
Wireless Standard IEEE 802.15.4
Indoor Range 90 m
Outdoor Range 300 m
Transmission Power North America 17 dB
Transmission Power International 10 dB
User Flash Size 188 kB
Flashes per Sector 100000
Directivity Omni
Physical Specifications
Length 8.8 cm
Width 4 cm
Height 12.7 cm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature 70 °C
Minimum Storage Temperature -40 °C
Maximum Storage Temperature 85 °C
Part Number Description Est Ship  US Dollars Qty
WSN Measurement Node
781295-02WSN-3226: 4-ch Programmable RTD/±10V Combo WSN Node (Americas)12 - 20$ 732.00
781295-12WSN-3226: 4-ch, Programmable RTD/±10V Combo WSN Node (EU/Asia)5 - 10$ 732.00
Accessories
780994-01NI WSN-3291, WSN Node Enclosure w/ ext antenna and 2 I/O glands5 - 10$ 174.00
780999-01NI WSN-3280 WSN Node Panel Mount w/ node lock & strain relief12 - 20$ 65.00
781073-01NI WSN-3281 Magnetic Panel Mount Kit w/ node lock & strain relief12 - 20$ 65.00
781074-01NI WSN-3282, DIN Rail Mount Kit for measurement nodes or gateways5 - 10$ 31.00
780703-01NI PS-9 Desktop Power Supply, 12 VDC, 1.25 A, 100-240 VAC Input5 - 10$ 47.00
763000-01Power Cord, AC, U.S., 120 VAC, 2.3 meters10 - 15$ 9.00
780702-012-Position Screw Terminal Kit for Power Supply Connection, Qty 45 - 10$ 9.00
196375-01NI 9971 Backshell for 2-pos connector block (qty 4)5 - 10$ 31.00
781076-01Extra 18-pos connectors for WSN nodes. 1 top entry 1 side entryCall$ 31.00
780704-01Replacement 2.4 GHz Omni-directional Antenna, 2 dBi, RP-SMACall$ 54.00

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