Wondering if anyone has seen this before. Using a fluke 87 meter it shows up with a varying frequency from 60.00 hz to 300 hz. Tried three different flukes and one other brand still came up the same. I have not put an o-scope on it yet. This is just turning up on one unit. Several others are stable at 60 hz. The analog meter shows a constant 60 hz. It does not appear to be affecting any downline equipment, but it just bugs me. This has just recently turned up. It had been reading good before. The readings are stronger the closer to the ups, but it does show up downline at the load end. Obvious items such as capacitors are good. As far as that goes it does not stay at any normal multiple of 60 like a bad capacitor anyways. The frequency board is operating well within range also.
- posted
18 years ago