[2] de Champs was a student at Praktiska arbetsskolan för barn och ungdom (later Palmgrenska samskolan) from 1880 to 1886 and was an extra cadet on the corvette Eugenie in 1886.

[1] He served in the Royal Swedish Naval Materiel Administration from 1899 to 1908 where he, between 1900 and 1908 began with attempts of wireless telegraphy.

[4] de Champs was duty officer for Prince Wilhelm, Duke of Södermanland from 1905 to 1908 and was naval attaché at the Swedish mission in Tokyo and Beijing from 1908 to 1910.

de Champs served as flag captain in the Chief of the Coastal Fleet's staff from 1923 to 1925 and the Inspector of the Submarine Service from 1926 to 1928.

Questions about the replacement of obsolete ships and moving of the naval station from Skeppsholmen was still unresolved and was urgently in need of a solution.

He was chairman of the Executive Board of the Navy Retirement Fund (Flottans pensionskassa) from 1928 to 1933 and was military member of the Supreme Court from 1933 to 1937.