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Hello! This is my first post, I hope I am doing this right 
I am running a process qualification. We will be looking at the best and worst case processing parameters. So, let's say I will be testing temperature at 180 and 190. One team member said that if the calibration tolerance of the controller is +/- 2, then after qualification, I must run production at 182 - 188. That's to ensure we are in the qualified window. Has anyone else taken this approach? I would be concerned about this if the calibration tolerance were large.
I am thinking about suggesting that we try to keep the calibration tolerance 30% or less of the process parameter tolerance--similar to a GR&R.
Any suggestions??
Thank you,
Renea
I am running a process qualification. We will be looking at the best and worst case processing parameters. So, let's say I will be testing temperature at 180 and 190. One team member said that if the calibration tolerance of the controller is +/- 2, then after qualification, I must run production at 182 - 188. That's to ensure we are in the qualified window. Has anyone else taken this approach? I would be concerned about this if the calibration tolerance were large.
I am thinking about suggesting that we try to keep the calibration tolerance 30% or less of the process parameter tolerance--similar to a GR&R.
Any suggestions??
Thank you,
Renea