4-20ma Current receiver (PR55-5A) wiring and misc questions

Thanks, that wiring schematic seems different than what is in the manual? Or am I reading this incorrectly.

Otherwise, the mA or ADC reading doesn’t make sense for the scaling of output -100 to 500F (4-20ma).

adc1: 981
adc2: 666
mA1: 0.67
mA2: 0.46

I’m using this information - How to Convert 4-20mA Current Loop to Voltage/Digital Conversion - NCD.io

M12 Connection (PR55-5) —

Blue — 4-20mA +Ve

White — External Power Supply +ve

Brown — 4-20mA -Ve

Black — Ground

Gray — 16V Supply ( To power External Sensor)

M12 Connection (PR55-48)

Blue — 4-20mA +Ve

White — External Power Supply +ve

Brown — External Power Supply -ve

Black — Ground

Gray — 16V Supply ( Test Point)