I managed to make it work.
U ref at pin5 U3 = 0.632V with potentiometer R16
Capacitor values missing :
C5 = 4.7uF
C8 = 1uF
C12, C13 = 102 = 1nF
C14 = 105 = 1uF
Switch function:
S6 = capacitor measure uF - capacitor to test between 8-7 or 9-10 zero effort insertion module U4
S7 = capacitor measure uF capacitor to test between 8-7 or 9-10 zero effort insertion module U4
S3 = inductance measurement capacitor to test between 1-2 or 15-16 zero effort insertion module U4
S2 = capacitor measure pF capacitor to test between 5-6 or 11-12 zero effort insertion module U4
S1 = frequency Hz - input at 3-4 or 13-14 zero effort insertion module U4
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