COPY doesn't works when containing 'ñ' or 'à' characters on db

I finally percated that when data contains 'ñ' or 'à' it's impossible to
parse trought:

COPY products FROM '/var/lib/postgres/dadesi.txt' USING DELIMITERS '|' \g

it causes:

SELECT edicion FROM products;
     edicion
-----------------
 España|Nacional <-------puts on the same cell either there's an '|' in
the middle!!!


but changing 'ñ' for n

SELECT edicion FROM products;
     edicion
-----------------
 Espana <---------------it separates cells ok


so what's my solution for a text to COPY containing such characters?


best regards,
jaume