NRF Power Profiler II not working in AMP mode

Hi guys,

I'm a bit frustrated with the NRF Power Profiler II. I'm working on a low power project with the NRF52832 with a custom PCB and I decided to buy this power profiler to ease the debug.

In voltage mode the device works perfectly. Using a 10K resistor between the Vout and GND gives the 400uA if the voltage is set to 4V.

However, in AMP mode nothing makes sense. I've a battery with around the same voltage with positive cable connected to Vin and a resistor connected to Vout which then connects to the negative cable of the battery. The reading in the tool shows 14uA. Using the multimeter I got a voltage across the resistor around 3.6V which also does not make much sense. It seems the tool is drawing some current itself?

Is this a defective product or it's software related?

Best regards,

Fernando Fontes