- IEEE 802.11b/g (Wi-Fi) wireless and Ethernet communications interfaces
- Thermocouple, RTD, resistance, voltage, and current measurements
- Measure quarter-, half-, and full-bridge sensors
- 250 Vrms channel-to-channel isolation
- Advanced security with 128-bit AES data encryption and IEEE 802.11i (WPA2) support
- Includes NI-DAQmx measurement services software and LabVIEW SignalExpress LE
 Data Sheet |
Configure System 
The NI WLS-9219 Wi-Fi data acquisition (DAQ) device includes four simultaneously sampled universal measurement channels for multipurpose testing. With the WLS-9219, you can measure several signals from sensors such as strain gages, RTDs, thermocouples, load cells, and other powered sensors. The channels are individually selectable, so you can perform a different measurement type on each of the four channels. Measurement ranges differ for each type of measurement and include up to ±60 V for voltage and ±25 mA for current. You can synchronize the WLS-9219 with other devices by using two onboard individually programmable digital trigger lines to export or import sample clocks, start triggers, pause triggers, and reference triggers. Refer to the manual for detailed specifications.
With 250 Vrms of channel-to-channel isolation, the WLS-9219 protects both your measurement system and other channels within the same module from harmful voltage spikes. In addition to this increased safety, channel-to-channel isolation eliminates problems associated with ground loops and rejects high common-mode voltages for more accurate measurements.
NI Wi-Fi Data Acquisition
NI Wi-Fi data acquisition (DAQ) devices combine IEEE 802.11g wireless or Ethernet communication; direct sensor connectivity; and the flexibility of NI LabVIEW software for remote monitoring of electrical, physical, mechanical, and acoustical signals. With built-in signal conditioning and the highest commercially available network security, NI Wi-Fi DAQ devices stream data in real time for easy-to-use, high-performance remote measurements.
NI-DAQmx Measurement Services Software
NI-DAQmx driver and measurement services software provides easy-to-use configuration and programming interfaces with features such as the DAQ Assistant and automatic code generation to help reduce development time. Every Wi-Fi DAQ device also includes a copy of LabVIEW SignalExpress LE software so you can quickly acquire, analyze, and present data without programming.
Application Software
In addition to LabVIEW SignalExpress, Wi-Fi DAQ devices are compatible with the following versions (or later) of NI application software: LabVIEW 7.1¹, LabWindows™/CVI 7.x, and Measurement Studio 7.x. Wi-Fi DAQ devices are also compatible with ANSI C/C++, C#, Visual Basic .NET, and Visual Basic 6.0.
¹ NI-DAQmx 8.8 (and later) provides support for NI LabVIEW 7.1, 8.2, 8.5, 8.6, and later.
The mark LabWindows is used under a license from Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
Additional Product Information
Related Information
Specifications Documents
Specifications Summary
| General | |
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| Form Factor | Ethernet, Wireless |
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| OS Support | Windows |
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| Measurement Type | Bridge-based sensor, Current, RTD, Resistance, Strain gauge, Thermistor, Thermocouple, Voltage |
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| LabVIEW RT Support | No |
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| Isolation Type | Ch-Ch Isolation |
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| Analog Input | |
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| Number of Channels | 4 DI |
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| Sample Rate | 100 S/s/ch |
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| Resolution | 24 bits |
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| Simultaneous Sampling | Yes |
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| Maximum Voltage Range | -60..60 V |
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| Range Accuracy | 243 mV |
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| Minimum Voltage Range | -125..125 mV |
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| Range Accuracy | 271 µV |
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| Maximum Current Range | -25..25 mA |
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| Range Accuracy | 152 µA |
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| Minimum Current Range | -25..25 mA |
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| Range Accuracy | 152 µA |
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| Maximum Resistance Measurement Range | 0..10 kOhm |
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| Minimum Resistance Measurement Range | 0..1 kOhm |
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| Number of Ranges | 6 |
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| On-Board Memory | 4095 samples |
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| Signal Conditioning | 0-20 mA current input, Cold-junction compensation, Current excitation, Voltage excitation |
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| Analog Output | |
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| Number of Channels | 0 |
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| Digital I/O | |
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| Number of Channels | 0 |
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| Counter/Timers | |
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| Number of Counter/Timers | 0 |
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| Timing/Triggering/Synchronization | |
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| Synchronization Bus (RTSI) | No |
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| Triggering | Digital |
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| Physical Specifications | |
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| Length | 21.4 cm |
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| Width | 9.5 cm |
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| Height | 10.2 cm |
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| I/O Connector | MINI-COMBICON, 3.81 mm (6-Position) |
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Extended Warranties
National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:
- Significant cost savings compared to individual repair incidents
- Fault location, diagnostics, and repair by NI any time the system product fails
- All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications
For more information about your warranty options:
Calibration
NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.
Training
NI training is the fastest, most certain route to productivity with NI tools and successful application development.
Repair Services
Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.
Technical Support
ni.com/support
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