... three sections: capacity titration unit (can be replaced by Coulomb titration unit), control unit ( can be replaced by ... )3, Stability: ±0.3mV±1 bit/3h4, Power supply: AC (220±22)V,(50±1)Hz5, Dimension ( ... mV Value: 0.1mVc)Temperature:0.1°C;3, Electronic unit error: a,PH:±0.01PH ± 1bit b ... Polarization voltage: 3,50,100(mA)3, Electronic unit error Control titration sensitivity: ±5% FS Polarization ...