Good morning, everyone! Lately we've had a slight issue with one of our reflow ovens. We have set our temp parameter for the last zone at 150 degrees C. When we first received this oven we had no problem with maintaining this zone as prescribed. I assume we have an insulation barrier that's breaking down and causing this situation. Anyway, how critical is this cooling zone? If the oven is no longer able to maintain the current setpoint, would it harm anything for this zone to move up in the 160 to 170 degree range? We're running a pb-free process here, just in case it makes any difference... Thanks in advance for your help. Leland Woodall --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------