Using a dehydrator the temp gets about 140 to 150 degrees. If you use an oven, a temp of 160 (165 for poultry) is suggested by the USDA because that is the temp that kills e coli.
That low of a temp removes the water from the meat over a short time without getting high enough to actually cook the meat. to dry it in the oven you need to place meat on a screen or cake cooling rack with a drip tray positioned below that. There needs to be room for air to move around the meat. Placing it directly on a pan will cause it to basically stew in it's juices which can cook it if you leave it in long enough.