What Load Resistances Can I Use to Take Strain Measurements on my NI 9219?

Updated Sep 9, 2024

Reported In

Hardware

  • NI-9219
  • USB-9219
  • C Series Strain/Bridge Input Device

Issue Details

I am using an NI 9219 input module to measure strain with a quarter, half, or full Wheatstone bridge configuration. Does the device support both 350 Ω and 120 Ω resistors?

Solution

Yes, the device is capable of measuring strain using either 350 Ω or 120 Ω resistance loads. The characteristic excitation levels that the 9219 provides for each resistor type is mentioned in the device's datasheet here.