Analog sensor issue

I try to read out an analog distance sensor.
It is a current based sensor and it looks all good on the UR UI.
When I try to read via: 
`analog_input_raw = robot.get_analog_inputs()
            analog_input_0 = analog_input_raw[0]`

I get numbers like this: 
`5.45884889083e-312`

Is there an example how to read an analog current sensor with URX?