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VREF pin - LEM HLSR Series Current Sensor

Discussion in 'Sensors and Actuators' started by DHARITRI HAZARIKA, Jul 10, 2017.

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    Jul 10, 2017
    Hello Everyone,

    I am new to the LEM HLSR series current sensor series. If anyone have used or knows about the sensor can you please help me in below point.:4

    The LEM HLSR 10-p series can measure current of +-25A, with an output voltage of +-2V, But in the datasheet of the HLSR 10-P, there is one pin VREF, for overdriving the current measurement capability of the sensor. I don't need this feature, so can anyone suggest what to do with the VREF pin, should I leave it floating ?

    Thanks & Regards,
    Dharitri Hazarika
  2. kellys_eye


    Jun 25, 2010
    Looks like Vref is a 'requirement' whether you want it or not as it is used to calibrate the output.

    Suitable volt-drop resistor combination across the supply line and with a multi-turn preset to set.
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