The National Instruments WSN-3212 Thermocouple Input Node is a versatile wireless sensor network (WSN) solution, designed to facilitate efficient temperature monitoring across industrial settings. This device features four dedicated thermocouple input channels, complemented by four bidirectional digital channels that can be configured individually for input, sinking output, or sourcing output, providing exceptional flexibility in implementation. With a high analog-to-digital converter (ADC) resolution of 24 bits, the WSN-3212 delivers precise measurements critical for demanding applications.

The WSN-3212 operates seamlessly in wireless networks, capable of functioning as a mesh router to enhance node capacity and extend network range. A single WSN gateway can manage up to 32 measurement nodes or eight end nodes, enabling expansive data collection from remote environments. This compact and low-power device supports industrial temperature ratings and offers programmable input ranges, accommodating a voltage supply from 9 to 30 volts.

Equipped with built-in cold junction compensation (CJC), the WSN-3212 supports multiple thermocouple types, including R, S, T, B, N, E, and J, ensuring broad adaptability for various temperature measurement applications. Communication with the gateway is established through robust 2.4 GHz radio signals, specifically chosen to minimize interference and enhance reliability. The device can be powered via a field-replaceable battery or an external power source, providing versatile deployment options.

Programming is facilitated through the NI-WSN software, which includes the Measurement & Automation Explorer (MAX) tool and is fully compatible with LabVIEW and other application development environments. Although National Instruments has designated the WSN-3212 as mature status, the Thermocouple Input Node remains available for purchase and servicing through Apex Waves. Users will benefit from a three-year warranty and access to downloadable user and maintenance manuals. For pricing information, potential customers are encouraged to contact a sales representative.