No display on my MFT

[Amp David]

I have tried to do a live Zs test today with my Megger and there is no display showing.

Do I need to put batteries in it for a live test or does the mains voltage power it?

Cheers

 

[DNS1]

I'd be inclined to buy a Metrel... Built in Ni-MH batteries...

 

[MarkieSparkie]

I have tried to do a live Zs test today with my Megger and there is no display showing.

Do I need to put batteries in it for a live test or does the mains voltage power it?

Cheers

Yes mate it needs batteries to drive the electronics, the circuit under test does not provide power to most modern MFTs unlike the old Robin yellow brick or similar earth fault loop impedance testers.

 

[Geordie Spark]

Maplin have some good deals on batteries just now.

Wor lass just bought a shedload for her electric toothbrush.

 

[DNS1]

I think it was Wilkinson where I saw a good deal of Duracell Ultra the other day! 2 big packs for £7 and each pack had extra free as well!

 

[Geordie Spark]

I think it was Wilkinson where I saw a good deal of Duracell Ultra the other day! 2 big packs for £7 and each pack had extra free as well!

Thanks for that

I'll go have a looksee tomorrow.

 

[SPARTYKUS]

Amp David

Thanks for your question. It is appreciated as this problem ( as with others, like is the world flat or round?) will only assist others.

;-)

 

[SirKit Breaker]

Maplin have some good deals on batteries just now.

Wor lass just bought a shedload for her electric toothbrush.

Mine got a load for her broomstick, and shes out on it as we speak! Told her to get Nicads, so she can use them again next year.

 

[SYKRAPS]

I have a Megger Amp David and yes you do require funcioning batteries to perform live testing.

Its very annoying as they usually fail when you are miles from a shop.

 

[Silly Sausage]

I've got a Fluke 1652 and there is a simple modification you can do so it'll will charge re-chargeable batteries whilst you're doing Live tests.

 

[T&Earth]

Hi David

I would say you need batteries, as once you have your reading it should hold it and display when power is turned off?

 

[ExArmy]

I've got a Fluke 1652 and there is a simple modification you can do so it'll will charge re-chargeable batteries whilst you're doing Live tests.

that is a brilliant idea. which testers have that function? my megger does go through batteries quite fast, although I have been changing them at 10V for the last 3 months, but just recently i've read on here that they are good down to 8.5v ( i think) so i'll be getting my moneys worth out of them in future.
also i get my batteries from ebay, 24 duracell for £7 ish delivered

 

[DieselShunter]

Wor lass just bought a shedload for her electric toothbrush.

Is that what she calls it? :smilewinkgrin:

How very discreet.

 

[DNS1]

I think it was Wilkinson where I saw a good deal of Duracell Ultra the other day! 2 big packs for £7 and each pack had extra free as well!

Ok, my bad... Apologies to everyone who's been down to Wilkinson for their batteries... The deal was actually in Asda! Sorry!

 

[Amp David]

Got some from pound stretcher today, and it works good now, wikid:bigear: