NI-9205 analog values measurements affecting thru all channels... Help needed

[iarglez]

Hello to all,

There's a CRIO-9074 with 2 NI-9476, 1 NI-9477, 1 NI-9425 AND 1 NI-9205 DSUB, 32 CHANNEL +/- 10V, 250 KS/S, 16-BIT ANALOG INPUT MODULE.

We have 8 differential analog inputs and 12 RSE type. Whenever a reading is taking place in one channel the other channels reading affect it. The test has been conducted thru all channels and there is variation all over them. Is this normal in this kind of analog input cards? Have any of you guys have experimented this anomaly?

[santo_13]

These articles will be helpful,

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P9mKSAS&l=en-US

https://www.ni.com/en-us/support/documentation/supplemental/06/field-wiring-and-noise-considerations...

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA03q000000YHy6CAG&l=en-US

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P84RSAS&l=en-US