digital scales help!!!

[Kracken McGraw]

Does a surge protector like the Trip-Lite Isobar actually remove the “noise and transients” from grid power? I thought they just protected from large voltage spikes.

Amazon.com

Thank you

Your link indicates it does some. I use one on my fx-120i to offer some protection, I haven’t had any problems with interference.

 

[Doom]

AC power noise. Is it your problem? Highly unlikely. 50 years ago (us old farts might remember this) power line noise (voltage variations and frequency variations) had a significant effect on electronic equipment performance. This was the age of analog electronics and "noise" was observable. Often if the kitchen was in use or the dryer was running and the A/C kicked on you would see the color TV screen shrink.Today's digital electronics are much less susceptible to input voltage variations This is partly due to the nature of digital versus analog signal processing and also the fact that the digital electronics are running at low voltages 3-5 volts so that power line voltage variations don't have as significant effect. Because of the sensitivity of these low voltage components the devices have additional voltage regulated internal power conditioning.

That being said it's important that you use a good surge protector. These devices do provide protection for your equipment. While much is made of protection from grid induced voltage spikes the more likely source is from lighting strikes in the vicinity of the device. Most will also provide some small degree of filtering.

Things to watch for around the house that are potential issues? Welding machines, high current draw inductive loads such as tables saws, planers, etc, especially on the same circuit. Ham radio transmitters (source of RF interference). While I haven't seen this in years older analog RF receivers such as analog TV and Radios which do emit some RF frequencies.

Often blamed but seldom an issue? Fluorescent lights (Excluding the desk light over the device), cell phones, LEDs, low power walkie talkies, side by side scales.