# SR510 Lock-in Amplifier

class pymeasure.instruments.srs.SR510(adapter, name='Stanford Research Systems SR510 Lock-in amplifier', **kwargs)

  Bases: `Instrument`

  property frequency

    A float property representing the SR510 input reference frequency

  property output

    A float property that represents the SR510 output voltage in Volts.

  property phase

    A float property that represents the SR510 reference to input phase offset in degrees. Queries return values between -180 and 180 degrees. This property can be set with a range of values between -999 to 999 degrees. Set values are mapped internal in the lockin to -180 and 180 degrees.

  property sensitivity

    A float property that represents the SR510 sensitivity value. This property can be set.

  property status

    A string property representing the bits set within the SR510 status byte

  property time_constant

    A float property that represents the SR510 PRE filter time constant. This property can be set.