NI 9944 Quarter Bridge Completion Accessory Parameters

Updated Jun 29, 2021

Reported In

Hardware

  • NI-9945
  • NI-9237
  • C Series Strain/Bridge Input Module

Issue Details

There are two types of NI 9944  Quarter Bridge Completion Accessory:
1. High Accuracy, Quarter Bridge Completion Accessory (120 Ohm, qty 4) p/n 194738-02
2. Quarter Bridge Completion Accessory (120 Ohm, qty 4) p/n 194738-01
What is the difference between these two connector blocks?

Solution

The difference between these two Connector Blocks is the characteristics of the resistors 120Ohm.

p/n 194738-01 :                    p/n 194738-02 :

Tolerance= 0.1%                  Tolerance = 0.02%

TCR= 10ppm/degree C       TCR = 2ppm/degree C

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