A 82 year old handicapped person lost manual and I am trying to help her. When she asked for help because of beeping. When I saw it was a plug in, I said it did not need baterry replaced, not realizing that it had a battery back up. We had a recent power outage,, so I said I hit the reset button and I said it would be "ok". WRONG, so on future investigation, I found the battery pocket and replaced battery, but wondered how I should set the KN-COPP3 alarm or does it reset automatically. I need a manual. Can you please assist me with my delema. Thank you in advance for your prompt attention to this matter. Diane