Rugged, mobile CAN-based data acquisition modules

17 February 2010

HBM has introduced the SoMat cDAQ family of rugged, mobile CAN-based data acquisition modules. At only 35mm x 217mm x 50mm, the compact cDAQ modules provide a flexible distributed network of HBM signal conditioning in any environment and weather condition. Engineered to operate over the temperatures range of -40 to 125°C and with an IP67 protection class ratin,; the cDAQ modules allow users to take measurements directly in engine enclosures, gearboxes, pumps, power generation, and many industrial applications.

The cDAQ modules are compatible with any CAN ISO 11898 2.0B-based system or vehicle network and have a selectable baud rate from 20 kbps to 1 Mbps. Connecting multiple modules through the CAN bus allows for nearly unlimited channel counts, covering distances up to 250m. The modules are powered from an 8 to 36V dc power source. Once power is applied to the first module, it is distributed through the rest of the network.

cDAQ modules are also designed to interface with the HBM SoMat eDAQ or eDAQlite rugged, mobile data acquisition systems.

cDAQ modules are available in 16-channel isolated thermocouple configurations, cDAQ-ITC, for K-, J- or T-type thermocouples. Each channel has individual cold junction compensation fully isolated up to 500 V; with an accuracy of +/-0.5°C. Selectable sample rates are available for each channel from 0.1 to 15 Hz. The cDAQ-ITC also has digital and analog filtering to remove high frequency signal components above 50 Hz and notches at 50Hz and 60Hz to prevent aliasing at the power line frequency bands.