The setting resolutions for PBZ series models (except PBZ SR series) are as follows:
DC voltage: 20/40 V models: 1 mV (0.1 mV for the FINE function), 60/80 V models: 2 mV (0.2 mV for the FINE function)
DC current: 1 mA for all models (0.1 mA for the FINE function)
AC voltage: 20 V model: 10 mV, 40/60/80 V models: 100 mV
AC current: 10 mA for all models
For the details, read the user’s manual – chapter of Specifications.