Using the CMS 50E pulse oximeter

I have been trying to record my pulse ox overnight without much success. I recently just bought the CMS50E pulse oximeter which seems to be too complicated for me or I am just not very bright anymore in my older years.
The issue begins with setting this up to record- when I toggle down to record it gives me a yes/no and then a time option shows up. First, I can’t seem to get the cursor to move when I try and toggle to get to Y and then the time bar starts moving between hours and minutes. It seems like I can eventually get the device to record but I do t know what the time option deals with. When I wake up in the morning it is showing it is still recording but then when I go to try and upload the data to the SPO2 review program, nothing is uploaded- very frustrating. If anyone has any experience with this type of oximeter, I would greatly appreciate your help. Thanks,

viewtopic/t41928/CMS50E-instructions.html
http://www.pulseoxstore.com/themes/defa ... ONS_1_.pdf