The Senis Bus Bar Current Module locates two magnetic field sensors on each side of an electric current Bus Bar. Two Sentron CSA-1VG precision Hall Effect IC’s sense the magnetic field as a function of current on both sides of the Bus Bar. This enables effective cancellation of external magnetic fields without magnetic cores or shielding which can give rise to non-linearity and hysteresis effects. Offset and Sensitivity are factory calibrated to a fixed magnetic sensitivity. Current ranges that can be sensed will be dependant on the physical parameters of the Bus Bars. There are three versions of the BBM’s that are configured to accommodate various widths and thicknesses of bus bars.
The Senis Bus Bar Module Current Sensors are RoHS compliant.
Very compact and low profile mechanical package
Custom design bus bar geometries possible
Single 5 ±0.5V Power Supply at less than 25 mA
High Level 2.5 ±2V linear signal output
Signal output electrically isolated from primary Bus Bar ( 5kV rms)
Low Insertion loss
DC & AC Currents
Clean recovery from very high overload (to 100x nominal current)