The National Instruments FD-11637 is a robust Strain/Bridge Input Device specifically designed for use with FieldDAQ systems. This 8-channel input device, identified by part number 785641-01, features integrated voltage excitation and bridge completion, enabling compatibility with full, quarter, and half-bridge sensors. To enhance measurement accuracy, the FD-11637 includes functionalities for shunt calibration, offset nulling, and anti-alias filtering, effectively mitigating noise interference. With an IP67 rating, this device ensures water and dust resistance, making it suitable for harsh environmental conditions within a temperature range of -40 °C to 85 °C.

The FD-11637 is equipped with an integrated network switch and supports Time Sensitive Networking (TSN), allowing seamless integration with similar devices through daisy-chaining. Users can program the device using NI-DAQmx, which facilitates automatic synchronization between multiple FieldDAQ devices. Each of the eight analog input channels is galvanically isolated from each other and the chassis, ensuring reliable performance. The device offers simultaneous sampling across all channels and can be synchronized with IEEE 802.1AS-compliant devices. Networking capabilities are extended through two 8-pin M12 Ethernet ports that feature internal switching functionality, and two 5-pin M12 power connectors provide auxiliary power supply lines, Aux 1 and Aux 2, which can be utilized for additional network devices. The FD-11637 boasts a 24-bit ADC resolution and supports IEEE 1451.4 TEDS Class 2 for enhanced sensor integration. With a maximum power consumption of 15 W, it has compact dimensions of 7.8 in. x 3.0 in. x 1.9 in. and weighs 2 lb 10 oz. A comprehensive user manual and maintenance documentation are available for download, and for pricing, please contact a sales representative.