def METHOD_NAME(self, in_voltage, channel):
    """Convert ADC data using scale factors based on header configuration"""
    ch_range = eval("self." + str(channel) + "_in_range")
    try:
        ch_index = self._in_range_available.index(ch_range)
    except ValueError:
        raise Exception(
            "Invalid _in_range detected. Valid values are '+/-13.75', '+27.5', and '+2.5'."
        )
    if ch_index < 2:
        scale_sig = []
        for sigs in in_voltage:
            scale_sig.append(sigs * self.in_scale)
        return scale_sig
    return in_voltage