>I'd like suggestions for a serial number scheme that could indicate the >instrument model/type, date of manufacture (for warranty purposes). And >it shouldn't be too long, about 8-10 characters. I always liked the serial number system the HP used to use on their instruments (don't know if Agilent has carried it on), but it included the model number and the serial number in this batch, along with a batch number IIRC. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist