Our EMS director ended up with the manual; however, I'll see what I can do. Like I mentioned above, I contacted Zetron and they mailed a manual to the hospital address I gave them at no charge.
I'd try to explain what each menu setting is, but it's been a while since I programmed them. I do remember that you press "*" to clear the display, then press "*" and "3" (or "*" and "1", depending upon how old the encoder is) to enter the programming menu, use the "#" key to navigate through the menus or submit entries, and "*" to go up one level in the menu or to exit the menu from the top level. There should be a sequence of 4 (IIRC) "." on the display indicating that you're in the programming mode.
I know it's not much help, but maybe it's a starting place. The programming isn't hard really, it's just rather cryptic in nature since you're looking at a numerical display only. If I find the manual again, I'll PM you for contact information.
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