Discuss Multifunction Tester in the Electrical Tools and Products area at ElectriciansForums.net

Alex W

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Hey, this might seem like a silly question but I am only a trainee so please bear with me.

I've been looking at purchasing a multifunction tester, more specifically a megger 1741. The thought hit me, would if be worth waiting until after the release of the 18th edition? Im a little worried that a new megger purchased now might not be able to carry out all the tests required in the 18th. Am I just being over wary or would it be worthwhile waiting?
 
Unless the 18th edition comes up with some new super testing that existing testers can't do delaying your purchase isn't likely to impact you.

As tel say contact test meter, and don't skimp on what you buy - if looked after, the device should last for a very long time
 
Hi guys - 18th won't change the test features offered by what are currently marketed at '17th' testers, other than product descriptions on the website, wholesalers, magazines etc.

One thing to bear in mind is any earth testing requirements that you may have in the future with the proposed changes - some MFTs have the ability to conduct earth tests using spikes and long leads.

If you don't choose a tester that offers this function, you might need to consider buying/hiring a separate standalone tester when the need arises.

MFT1741 does include this option, as does the 1731.
 
Thanks Danny for the update. I purchased my 1730 with the spike kit 4 years ago. Don't do much TT stuff, and as yet never had to install a rod - some of the existing installs I have done, have been terraced properties front door straight onto the street. Good luck with replacing the rod on those!

We shall have to see how the draft pans out, but whilst in my wholesalers today, looking for a new MET, I was shown the shelves for earthing 'stuff'. Bottom rack had a bunch or various earth rods, I commented 'best order some more in, you can make a killing!'.
 
For most things I don't know why the MFT1711 wouldn't be more than adequate. It's essentially sold as a domestic tester, but it'll do the main bulk of any commercial task.

If you need a special test you can always buy another unit. Like an earth electrode tester, or rcd tester with more features.Do you really need to be carrying around £1000 off test equipment in one unit?
 
For most things I don't know why the MFT1711 wouldn't be more than adequate. It's essentially sold as a domestic tester, but it'll do the main bulk of any commercial task.

If you need a special test you can always buy another unit. Like an earth electrode tester, or rcd tester with more features.Do you really need to be carrying around £1000 off test equipment in one unit?

Hi sevuk, I sent this to you as a PM by mistake when I meant for it to be on this thread - please disregards the PM I sent in error!

MFT1711 is a good option for those who mainly test single phase installations (domestic installers and testers), but doesn't offer line to line testing or phase rotation testing - required for testing multi-phase circuits found within many commercial and industrial installations.

It's completely personal preference, but most nowadays (in my experience) prefer having a single unit. A standalone earth tester is around £150-200, Type B (DC/high frequency) RCD tester another £300-350 - both options included in the 1731 and 1741 for around £350 over the MFT1711.

Why spend more on separate instruments in the first place, store separate instruments and then pay more to have them all individually calibrated?
 
18th edition multitesters are available at much cheaper rates but you need to look towards other country. Zotektools provides multitester at cheaper rates but you need to order them in wholesale.
Stop spamming the forum...
 
You can do everything except earth electrode testing with a 1711, and a voltage tester with a phase rotation function.

The mft 1741 might do a nice l1 l2 l3 display when the rotation is correct but it wouldn't know any different if it was l3 l2 l1.

Line to line testing for pfc is calculated anyway.

Saying that I bought one anyway....
Mostly because it claims to have a new algorithm for low current loop tests. Can't comment on that yet though. It's also nice to be able to test electrodes, though I won't often have to do it.
 
It's also nice to be able to test electrodes, though I won't often have to do it.

You might if that 18th madness comes into being. I have a 1730, that come with the test kit, to find a good place to locate an earth rod. Never used it, but guess I might have to next year. Just wondering how you use them on terraced properties, with no front garden!
 
You might if that 18th madness comes into being. I have a 1730, that come with the test kit, to find a good place to locate an earth rod. Never used it, but guess I might have to next year. Just wondering how you use them on terraced properties, with no front garden!
Another consideration for getting the top end megger, I don't like to be surprised, so I'd rather have all the gear and no idea haha.
 
Some are TNS , but the vast majority were TT converted to PME.
The TT ones usually had the rod under the floorboards, the ones that had them next to the outside wall had the copper tails nicked when the price went high , it will be beano day for the thieves.
As for the method; look for the toby's' manholes and gas entries into building. Then take great care lol.
I doubt there will be any meaningful records.
 
Some are TNS , but the vast majority were TT converted to PME.
The TT ones usually had the rod under the floorboards, the ones that had them next to the outside wall had the copper tails nicked when the price went high , it will be beano day for the thieves.
As for the method; look for the toby's' manholes and gas entries into building. Then take great care lol.
I doubt there will be any meaningful records.

Yep that is a daunting thought.

I did work on one terraced house, TT'd, which had an issue with the service head. I was chatting to the DNO engineer, about converting to PME. He said unlikely, as the feeds were clipped along the terraced houses, popping in & out of them. So ok if they were all converted, but who's gonna pay for that.
 
Yes , a lot of them are eaves fed through the lofts here fed from an end of street gable on different phases.
I worked on one next to the main road that was upgraded from under the footpath from the lead sheath. That would cost a fortune as you say.
 
The mft 1741 might do a nice l1 l2 l3 display when the rotation is correct but it wouldn't know any different if it was l3 l2 l1.
Please explain what you mean, I don't follow what you're saying.
If the rotation is anticlockwise, it displays "L2, L1, L3" within the lower segments of the voltage reading, as opposed to "L1, L2, L3" within the top segments.
 
Please explain what you mean, I don't follow what you're saying.
If the rotation is anticlockwise, it displays "L2, L1, L3" within the lower segments of the voltage reading, as opposed to "L1, L2, L3" within the top segments.

Yeah I messed up l3 l2 l1 is backwards. Thanks for pointing that out. I meant to put L3 L1 L2.

What I mean is it doesn't do phase angles so the display of L1 L2 L3 only tells you the rotation is correct. But the rotation could still be correct if it was out of sequence. For example L3 L1 L2 would still be clockwise and the tester wouldn't know any different, the motor will still work the same anyway, so it's good enough.

I was just making the point that it works no different to the phase rotation indicator you might have on your voltage tester. With a mistake in my explanation, whoops.
 
Are the any examples where the angle is relevant? The only scenario I can think of would be in synchronisation of two DNO supplies from separate transformers. In all other cases, if, for example, L2 from the DNO was erroneously wired to L1 at the incomer (and likewise L3 to L2 and L1 to L3), no one will ever be the wiser.
 
Are the any examples where the angle is relevant? The only scenario I can think of would be in synchronisation of two DNO supplies from separate transformers. In all other cases, if, for example, L2 from the DNO was erroneously wired to L1 at the incomer (and likewise L3 to L2 and L1 to L3), no one will ever be the wiser.

As electricians I can't see why we would be expected to pick that up, and we'd need some very expensive equipment. As long as the rotation is correct, we won't have any motors running backwards unintentionally.
 

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