olt.&Curr sensor board up to 200A GND management

Good morning,
I’ve to use your Volt.&Curr sensor board up to 200A (https://drotek.com/shop/en/home/749-voltage-current-sensor-board.html?search_query=CAP074&results=1) , the GND comes from battery it’s different than GND comes from PX4, is it possible to doesn’t connect the GND battery and use only the GND comes from PX4 ?
Thank you


I think that should work. Let me know please.