The current sensor should be selected to meet the highest amperage expected in an application, however should be as small as possible to improve accuracy. For example, if an application has an expected maximum amperage of 275 amps, a 500A current sensor should be used. Some headroom should be left between the maximum expected amperage and the size of the current sensor to allow for brief current transients that could potentially exceed the rating of the current sensor.
Although the current sensor is optional, it is recommended as most of the Orion BMS systems’ features depend on having accurate current sensor data.
With a current sensor, the Orion BMS is able to monitor:
● Internal resistance
● Battery health
● Over-current protection
● Current measurements
● Open cell voltages
● Weak cell faults
● SOC (State of charge)
● Calculation of Charge or Discharge current limits
We carry the following sizes of current sensors: 500A and 750A.
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