P Perry Babin Member Joined 2003 bcae1.com 2020-09-20 4:57 pm #21 2020-09-20 4:57 pm #21 You need to place the black probe on the negative rail. A Aqeeb127 Member Joined 2018 2020-09-20 4:58 pm #22 2020-09-20 4:58 pm #22 Ok will do Prev 1 2 First Prev 2 of 2 Go to page Go You must log in or register to reply here.