Hi, I am in need for a user's guide for: Heat blocks: Thermolyne Type 12200 Dri-Bath, Model DB 12215E BY Barnstead Thermolyne. I tried to look online for these and was unable to find a reference to it. I have 2 of them. I need to write an sop, get them validated, and placed in use. We do so much isoagglutinin titers and these happened to be in our Biomed department, but without a user's guide as they are older equipment , but in great shape. Can someone help provide the guide if you happen to have the same model. Thanks.