metrel mi3000 testing for ze

[Guest123]

continuity of rfc
R1 = 0.2
R2 = 0.2
RN = 0.3
R1+R2 = 27.9 furthest socket from cu
R1+RN = 0.1 furthest socket from cu

Could you explain how you obtained these reading a bit more please,.....they really don't add up at all????

 

[Kelrich]

Sorry lenny ive given you the wrong readings there i,ll get back to you tomorrow as i am out at the moment

 

[Kelrich]

Alright lads
lenny ive popped back to re do the rfc test and got practically the same readings
R1=0.2
R2=0.2
RN=0,1
then connected incoming line to outgoing earth and outgoing line to incoming earth
R1+R2= 29.9 fail
then changed my earths to the neutrals and got
R1+RN= 0.0
any ideas whats up and do i have to rectify the problem for my cu assessment?

 

[Octopus]

Alright lads
lenny ive popped back to re do the rfc test and got practically the same readings
R1=0.2
R2=0.2
RN=0,1
then connected incoming line to outgoing earth and outgoing line to incoming earth
R1+R2= 29.9 fail
then changed my earths to the neutrals and got
R1+RN= 0.0
any ideas whats up and do i have to rectify the problem for my cu assessment?

Are you sure you have the ends of the ring correctly identified?

 

[Deleted member 26818]

Alright lads
lenny ive popped back to re do the rfc test and got practically the same readings
R1=0.2
R2=0.2
RN=0,1
then connected incoming line to outgoing earth and outgoing line to incoming earth
R1+R2= 29.9 fail
then changed my earths to the neutrals and got
R1+RN= 0.0
any ideas whats up and do i have to rectify the problem for my cu assessment?

It sounds to me that at one of the socket-outlets the CPC and neutral are swopped over.

 

[Octopus]

It sounds to me that at one of the socket-outlets the CPC and neutral are swopped over.

Possibly but that doesn't explain the end to end readings though!

 

[Kelrich]

Cheers fellas
i,ll check the sockets as customer has said about ten years ago the kitchen was wired in by a relative so hopefully the problem lies in there

 

[Deleted member 26818]

I can't see a problem with the end to end readings?

 

[Octopus]

I can't see a problem with the end to end readings?

No, I agree but if two cables were swapped you'd expect the end to end readings to be very similar.

Looks a bit fishy though. lol

 

[REIBURN]

hi i have the metrel mi3000 easi test and one of the lads i work with did a ze test using my meter set to loop z (rcd) he went between the live neutral of the main switch and earth and said that the meter froze. I have checked all the fuses and nothing has blown but i cant get to loop rcd anymore. any ideas? please help!

 

[Deleted member 26818]

I sometimes have problems, doing Zs tests, if the contact with the probes is not very good.
If your meter has frozen, try removing the batteries, leaving a couple of minutes (have a cup of tea or something) and the replace the baterries and re-try.
If that doesn't work, then you will have to return the unit for repair.

 

[Guest123]

Have you tried the universal method of repair......blowing on it???:lol:


I'd agree with spin above though, if pulling the batteries out doesn't cure it you may have to send it away.

 

[REIBURN]

I sometimes have problems, doing Zs tests, if the contact with the probes is not very good.
If your meter has frozen, try removing the batteries, leaving a couple of minutes (have a cup of tea or something) and the replace the baterries and re-try.
If that doesn't work, then you will have to return the unit for repair.

thanks iv tryed doing that and still no joy. i just wanted to make sure that before i send it back that its not something that would void the warrenty. also wheres the thanks buttons im new to this!

 

[Octopus]

thanks iv tryed doing that and still no joy. i just wanted to make sure that before i send it back that its not something that would void the warrenty. also wheres the thanks buttons im new to this!

Along the bottom of each post is a brown "bar". At the left hand end is the "thanks" button.

 

[silverfox1]

Hi just a thought but is it set to test TN/TT in settings menu.To access settings menu press backlight key and turn function selector switch,to leave set up rotate selector switch again.