Product Details:

NI cFP-SG-140 is an 8-channel strain gage bridge input module developed for the Compact FieldPoint distributed I/O platform, and this strain module delivers precise signal acquisition for bridge-type sensors under demanding industrial working conditions. It supports full bridge, half bridge and quarter bridge wiring modes, which makes it compatible with standard strain gauges, load cells and differential pressure transducers. The module is commonly deployed for material stress testing, silo weighing monitoring, force feedback detection, structural deformation inspection and pressure measurement in production lines. Users can configure parameters, read real-time signals and run diagnostic checks via NI LabVIEW, official FieldPoint drivers and NI MAX software, which simplifies system commissioning and daily troubleshooting.

Key specifications and parameters: 16-bit delta-sigma ADC resolution, programmable excitation voltage including 2.5 V, 5 V and 10 V. The input impedance reaches 20 MΩ to reduce signal attenuation. Built-in notch filter can be set to 50 Hz or 60 Hz to eliminate power frequency noise interference. It adopts bank isolation design with 2300 Vrms dielectric withstand rating, which isolates ground loop signals and protects the backplane and host controller from transient voltage spikes. The operating temperature range covers -40 ℃ to 70 ℃, suitable for factories, test laboratories and outdoor industrial sites. Hot swap function is supported on the Compact FieldPoint backplane, and module replacement will not stop other modules running on the same bank. Onboard self-calibration and self-diagnosis functions help maintain stable load cell measurement for long-term operation.

This strain module is an end-of-life legacy NI product. We provide fully tested refurbished units for replacement and maintenance of old automation and test systems. It matches cFP-CB-1 or cFP-CB-3 terminal bases for secure field sensor wiring. It is widely adopted in industries such as material testing, packaging machinery, construction structure monitoring, chemical weighing and logistics weight detection.