ION8650 Temperature coefficient

[JuanMQT]

Dear Experts,

I have a request form a big customer, is there any datasheet of technical document where I can find the temperature coefficient in (% / °C) I have found that the datasheet refers to compliance with IEC 62053-22 standard, but the client needs it to be specified in a schneider document in order to compare with others brands.

picture provided by customer

Picture provided by customer from a Landis meter

I'll look forward for your answer

Best regards,

Juan Quintanilla

[DanL · Accepted solution]

The ION8650 is designed and tested to comply to IEC accuracy Class 0,1S for In = 1A and Imax = 20A

For compliance to IEC 62053-22, eight meters were tested at Kema Labs under various conditions:
- seven load levels ranging between 0.05A and 20A, at both unity PF and 50% Lag

- six different temperatures spanning -25 deg C and +55 deg C

The maximum temperature coefficient measured for energy accuracy was 0.002% / K (only one meter registered this "high" and only between 45 degC and 55degC). All other test points for all meters were <= 0.001% / K

Most tests had no measurable drift.

The typical/average temperature coefficient for ION8650 is < 0.001% / K (ie. <10 ppm/C)

The acceptable limits specified in the standard for Class 0,1S are:

  at cos(phi) = 1,   from 0.01A to 20A: 0.005%/K

  at cos(phi) = 0.5, from 0.05A to 20A: 0.010%/K