Type-A RCD failing 180 degree ramp test

I use a collection of separate testers, my first tester which I still have was a Robin KTS1620 multifunction which is as basic as you can get.


Currently my first choice meters are all Megger the insulation tester is a MIT420/2, loop tester a LTW320 and the RCD tester a RCDT320, however there are several other testers that don’t get regular use.


Over the last weekend I read through various websites and was considering if I should buy a new multifunction tester and put everything I already have on EBay which could potentially cover the cost of a new MFT.

I read this review of the Megger MFT1741 and it backed up some of the thoughts I already have in my head about testers and why I use the testers I do. Metrel owners have said to me in the past that if you get a duff test result on the automatic sequences you have to rerun the whole test sequence to confirm that what you tweaked you tweaked correctly and you have to scroll through lots of menus to get where you want to be.


Having just looked at the Metrel tester manual that Mike linked to I don’t think my current testers will be on EBay anytime soon, it all seems a bit over the top.


It looks like I► is the RCD test current that trips the RCD as Alcomax said being bang on 1000 mA seems unlikely.


 Andy 


Excuse the ► for delta, the choice of special characters  isn’t  much use.

I use a collection of separate testers, my first tester which I still have was a Robin KTS1620 multifunction which is as basic as you can get.


Currently my first choice meters are all Megger the insulation tester is a MIT420/2, loop tester a LTW320 and the RCD tester a RCDT320, however there are several other testers that don’t get regular use.


Over the last weekend I read through various websites and was considering if I should buy a new multifunction tester and put everything I already have on EBay which could potentially cover the cost of a new MFT.

I read this review of the Megger MFT1741 and it backed up some of the thoughts I already have in my head about testers and why I use the testers I do. Metrel owners have said to me in the past that if you get a duff test result on the automatic sequences you have to rerun the whole test sequence to confirm that what you tweaked you tweaked correctly and you have to scroll through lots of menus to get where you want to be.


Having just looked at the Metrel tester manual that Mike linked to I don’t think my current testers will be on EBay anytime soon, it all seems a bit over the top.


It looks like I► is the RCD test current that trips the RCD as Alcomax said being bang on 1000 mA seems unlikely.


 Andy 


Excuse the ► for delta, the choice of special characters  isn’t  much use.