We continue the charge measurements on ETMs. This is the first charge measurements after changing the sign of bias voltage applied to ESD (See alog 19821). At July, 21 and before ESD bias voltage was: ETMX (H1:SUS-ETMX_L3_LOCK_INBIAS) 9.5 ETMY (H1:SUS-ETMY_L3_LOCK_INBIAS) -9.5 Now: H1:SUS-ETMX_L3_LOCK_INBIAS -9.5 H1:SUS-ETMY_L3_LOCK_INBIAS +9.5 Plots are in attachment. Voltage is more or less the same, and it's early enough to consider the tendencies.