Siemens sentron multifunctional meter pac3100 pac3200 pac4200 siemens 7km3133 0ba00 3aa0 the siemens sentron pac3100 is a powerful multifunctional meter that is suitable for use in industrial government and commercial applications where basic metering and energy monitoring is required the meter may be used as a standalone device monitoring over 25 parameters or as part of an industrial control building automation or global power monitoring system metering and monitoring applications r