Just a thought. Has anyone tried correlating flux ionic readings with activity levels? It would be interesting to use flux until it almost stops soldering while continuously monitoring ionic readings of a fixed volume of the flux. Maybe some accept/reject indicator could be obtained. Jim Kittel >-----Original Message----- >From: [log in to unmask] [SMTP:[log in to unmask]] >Sent: Tuesday, December 01, 1998 7:30 AM >To: [log in to unmask] >Subject: [TN] Flux activity monitoring system > >I'm sure you know this, but checking flux specific gravity (in accordance >with supplier requirements >at a specified temperature) with a calibrated hygrometer is best. Worst, is >using so called >automatic systems that are part of some wave solder machines. Also, don't >keep replenishing or >"thinning" flux. It's cheap, compared to defective solder joints, so dump and >replace regularly >(when sg starts falling off say at the end of a shift or production run). >Hope I didn't over- >simplify, but it's all I know. > >Earl Moon > >################################################################ >TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >################################################################ >To subscribe/unsubscribe, send a message to [log in to unmask] with following >text in the body: >To subscribe: SUBSCRIBE TechNet <your full name> >To unsubscribe: SIGNOFF TechNet >################################################################ >Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section >for additional information. >For technical support contact Hugo Scaramuzza at [log in to unmask] or >847-509-9700 ext.312 >################################################################ > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################