Is this the meter you have: http://www.ebay.ca/itm/Gossen-Luna-P...item20ce27ba67 ?

If so, you can see the two different scales near the bottom.

By the way, after posting last night I figured out that the difference between the scales will vary if you change the ISO/ASA/EI setting.

Which makes sense, as EV is independent of film speed, while the exposure readings you use are not.