I guess I never read the owners manual very closely but I did discover something the other day. Normally when we connect I have my wife watch the remote panel on my hardwired EMS 50 unit so if there are problems I can cut the power. We reversed the procedure on the last stop and I watched the panel. I then discovered that the unit went thru all of it's checks, displayed the voltage, current, and HZ on each leg. It then showed E-0 (zero errors) and then applied power to the RV.
I wasn't aware it did all the steps in that sequence before ever applying power to the RV. That makes it even better. I know some have said they bought the portable unit so they can check the voltage etc. before plugging in the RV but the way the EMS50 works makes that unnecessary.
On our current 30 day and 3500 mi trip (so far) it has tripped 3 times. Twice for low voltage at a state park and once for a bad ground.
All 3 times were very temporary (seconds) and probably just a glitch in the power grid but I did feel better about it knowing it was working.
