We receive a lot of phone calls asking the age of a piece of equipment. In the past, you had to have a “secret decoder ring” to determine the age of a piece of equipmnet since the month and year were in the letters found in our serial numbers. Now we have gone to a system where the year of manufacture is visible but, you still need to understand the way is appears in the the whole serial number.
I have attached a file that you can open and print out and keeep handy that will show you how ro read both our old and currect serial numbers. This is your “secret decoder ring”. Just “click” on the link below to open the information. Keep in mind, that some letters repeat over the years so if you have any questions, please do not hesitate to contact your Technical Assistance person for help.