beaniesac

I have a Model - DT- SL3108hv Recorder - I've had it about 2 years and have not had a problem - but after the installed a new electric meter to our store - when it came back on - it beeps and all the pictures flicker - I dgon't know how to fix it - tried rebooting, unplugging - looking for something in menu to fix - it acts like an alarm or something - just a guess - would really like help with this. Thank You