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ADE7758 VRMS offset and gain calibration

Question asked by NijagunAradhya on May 18, 2016
Latest reply on May 18, 2016 by nchandra

Hi,

Please share the calibration procedure steps for VRMS channels

 


ADE7758 is configured to read 3 channel AC voltage ( 0 to 300V),

Attenuation Network is 499K+499K  and 1K to ground

When all three channels fed thru Variable transformer(same voltage on all three channel)

each channel VRMS register is multiplied with 0.00021.

 

Channel A works till 1V  (a minimum display possible is 1V)

Channel B works till 10V(a minimum display possible is 10V)

Channel C works till 5V  (a minimum display possible is 5V)

 

when the voltage is above 11V all channels display equally.

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