We continue the charge measurements on ETMs.

About a week ago the bias sign was changed of both ETMs. Before this week data are consistent with positive charging for ETMY and negative charging for ETMX. Charging speed is about 10-20[V] per month. 
This week's data seems to be consistent with a changed sign of charging - negative for ETMY and positive for ETMX. 
Plots are in attachment.