Hi group. I have this nikon dtm 831 but i guess internal battery is done. It needs a service. But I had the documentation for it long ago the softwate the emmulator etc . I cant find it anywhere. I used to own since 2007 trimble 710 robot. Sweet unit made us huge money. I took full project survey contract in my own as I trusted it more we were so efficient and dead on.
I am now setup in Sierra Leone as we have renewable energy projects infrastructure and more upcoming here. There is no total stations here or Liberia.
They survey land with phone gps then use theodolite. hahahaha Wow. I am sending for my Nikon as i sold the robot in 2013 for a truck . Bad move but ill get another.