Welcome to Photrio
@stammu!
Sorry to hear about your problems with the light meter. Btw, I'm the same person you contacted through my blog, so my response here is in addition to my earlier email to you.
The "En" and "Eu" messages denote under- respectively over-exposure during the measurement. Since the meter has quite a large range, it's rare to get either of these messages; generally you'll just get a correct measurement. If the battery is dead or nearly dead, the meter in my experience signals this with a 'BAT' indicator in the center of the display. Still, I'd try a fresh battery just to make sure.
Another possibility is that the metering accessory is incorrectly fitted or there's a problem with the electrical connections leading to the metering head. I've taken this snippet from
my blog:
These are the wires that run to the head, and I assume that they play a role in telling the meter which metering accessory (spot or incident dome) is fitted. Problems with these connections might result in the meter defaulting to the wrong metering range, or perhaps entering a failure mode altogether. If you decide to keep this meter (or are forced to do so), you might try and opening it up to see if there's a problem with these wires. I expect they might break with inappropriate or very intensive use.