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What's the detail meaning of M241 AI catriage TMC4AI2 filter level?
The numerical filtering function configurable for every input channel is a low pass first order.
The mathematic formula used is:
Measn =  K * Measn-1 + (1- K) * Valn
With: K is the filter efficiency,
Measn is the filtered measure at time n,
Measn-1 is the filtered measure at time n-1,
Valn is the actual input value measured at time n.
The sample time (from time n-1 to time n) is about 10ms.
Filter efficiencyFilter LevelCorresponding  K value
No filtering00
Smooth filtering1
2
0,750
0,875
Average filtering3
4
0,937
0,969
High filtering5
6
0,984
0,992

Schneider Electric New Zealand

Attachment(s)
M218 integrated AI and M241 AI cartridge Filter.pdf [48.14 KB]
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