We are having problems with our running machines in the rec center. They are the kind with the tv screens on them. The screens shut down on errors that cannont be traced. The company is thinking it is a result of problems with our AC power. We have had a power quality meter metering the panel that runs nothing but exercise equipment for about 5 days now. There has only been one event. The duration of this event only lasted 0:00:00:067. The event is a voltage dip to 72.4 volt on a 120 volt on phase C. Can anyone help me with any ideas what would cause this? And would this be what is causing the problems with the machines?