SEN0189 - Low Power mode

I am working on a SEN0189, which is read using the analogRead()-function. Since the SEN0189 takes quite a lot of power, I was hoping for some clarification regarding: 

Does the sensor only read/pull power after the analogRead-function is called? If so, how much power does it pull when not measuring?

If the sensor does read “continously”, is there a way to put it in sleep mode in between measurements to reduce power consumption?