Anybody familiar with this sign on a tester.

[Alextrician]

It showing a “noise” sign when live testing sockets for some reason. Sometimes it does it and sometimes it doesn’t just think it’s weird.

Never knew tester could pick up signals from cables

 

[buzzlightyear]

yes I have heard of that before ,it picking up some body sing next door .

 

[davesparks]

Yes electrical noise can affect results when using low-current anti-trip test methods, if it displays this symbol you should use the high current test instead as the results may be incorrect.

It’s all in the manual for the tester:

 

[Ian1981]

It usually comes up on low current ZS testing when other circuits are drawing a load shared by the same rcd.
Yes it’s very annoying.

 

[buzzlightyear]

dam ,I was just about to post that up .

 

[davesparks]

dam ,I was just about to post that up .

What? You mean a subtle hint that reading the manual for the tester is a good place to start with finding out what an error message means?

RIP common sense!

 

[Squid]

yes I have heard of that before ,it picking up some body sing next door .

How would a test apparatus know there is an Asian living next door?

 

[JK-Electrical]

 

[Midwest]

What? You mean a subtle hint that reading the manual for the tester is a good place to start with finding out what an error message means?

RIP common sense!

Don't be daft, real men don't bother reading instructions first.