EARTH LEAKAGE CLAMP METER REVIEW.... MULTICOMP PRO MP780050 ......IT ONLY HAD ONE JOB TO DO!!!!!!!!!

A quick-ish review of possibly the cheapest earth leakage clamp meter I could find in the UK, looks like it may well be the same as the following models sold under different brands/ colour schemes, Dilog DL6518, Alphatek TEK775, Ethos 3650, AMECaL ST-9810.

[@smd-tech]

Thanks for the review, saved me from having to return it after buying it. If I am honest I expected a bit better from farnell, they usually try to stock things that perform as advertised.

[@cleop610]

Hi, I bought one of these and had the same issue. What is the other one you showed on your video?

[@marke8732]

yes I bought one from cpc 2 yrs ago. only used it once for single conductors worked fine. just tried it over tails gave fluctuating of 115ma -40ma! 30ma RCD sat there not tripping:) I know it was cheap but as you say it LOOKS exactly same as others(Tek, DiLog etc) did you ever find a decent one?

[@alexhudson3574]

sorry i'm wrong , i only ever use a current tester for load tests , i wish this could do dc current as i need milliamps resolution up to 5 amps

[@peanutpotion]

Cheers for the review mate, was going to buy one of these but I’m not going to now. Can you recommend a decent one that’s priced fairly?

[@lostandoverengineered878]

I haven't found one yet, of course both megger and fluke do ones which seem to be well reviewed if you've got deep pockets (particularly for the fluke which is almost as expensive than their entry level MFT) there's a TIS one which seems like it might be ok for about £100 but for some bizarre reason has ranges of 2mA, 20mA or 60A so not ideal for tracing nuisance tripping of 30mA RCDs (although most do trip on a ramp test @ around 20mA). someone reviewed on amazon uk the TEK775 (which looks to be the same as the one in this video) and had similar issues for the sounds of it. I don't know though I may have had a duff one but the search goes on.... Do let me know if you get one you're happy with. In the meantime I still fall back on the great all round uni-T 210E on the 2A range its got a resolution of 1mA which while not great seems to be workable, clamp is a bit small to get two supply tails in though.........

[@acelectricalsecurity]

@@lostandoverengineered878 do uni-t do any other models for earth leakage, looking to replace my tester, which is the amecal version of the one you have, because I could really do with a AC/DC leakage current tester

[@lostandoverengineered878]

@@acelectricalsecurity They seem to do the UT251 which is reasonably priced if a little tricky to get hold of does look tempting for about £100 it doesn't measure DC current though.. they have bought out a ut211 (similar to ut210 which really is great general purpose with DC clamp) the ut211 goes down to a resolution of 0.1ma but again not for DC on this scale only further up. This makes some sense as when you measure AC current via clamp you're effectively using a current transformer but for DC via clamp its hall effect, and at less than 100mA DC ,you get so much interaction with ambient magnetic fields including our own planets', you can do a certain amount of zeroing out but its tricky, anyway the ut210 is good but has a small clamp, looks like the ut211 would be a bit more helpful finding earth leakage in AC (rcd tripping etc.) due to higher resolution can also do DC but also has a small clamp. but if you really after a high sensitivity AC clamp then it looks like the UT251 might just be worth a look. Out of interest how do you get on with your amecal ?

[@acelectricalsecurity]

@@lostandoverengineered878 thanks for the info, I ordered the 211b, hopefully it will do what I need, as for the amacal, I found it to be useful and seemed accurate enough for me, when looking for earth leakage on RCD protected circuits, however I lost it, so hence I have been looking around for a replacement, and I thought I may as well get one which could measure DC leakage current as well as ac, to move with the times.

[@CarlosMunoz-ul1ru]

Hioki

[@titiwat2527]

10 points how many points do you give?

[@alexhudson3574]

a clamp meter only works by putting one conductor inside the jaws , the current flow down the phase conductor will be the sane as the return on the neutral so putting both in at once cancels the other out

[@NordenEngineering]

An earth leakage clamp meter is different to a normal clamp meter as it is much more acurate and should measure down to 1ma (0.001ma) to measure leakage you clamp round both the line and neutral if there is no leakage the line and neutral should cancel each other out and it should read 0 anything above 0 which is now normal due to phone chargers computers etc being plugged in is leaking through the earth path. Earth leakage is becoming more of a problem with split load boards which have mutiple circuits on one 30ma RCD this arrangement often causes nuisance tripping as each RCD should have no more than 9ma as they usually trip at 22ma this is why RCBO's are now the standard in a consumer unit as each circuit has a 30ma RCD. A cheap chinese earth leakage clamp meter won't do the job.

[@alexhudson3574]

@@NordenEngineering i realised after posting that i had made a mistake , and fully understand how it works , thankyou for the response

[@NordenEngineering]

@@alexhudson3574 I hope I didn't waffle on too much but I thought I would explain how it works for others as well

[@alexhudson3574]

@@NordenEngineering cheers

[@TecniHogar2000]

Si mides los cables en una manguera, mide perfecta, así lo hiciste en la review de la Amecal 9810...el fabricante dice que si son cables sueltos y no manguera, hay que cruzarlos en la mandíbula del medidor.... Tienes que ser más honesto... Este medidor mide igual que el Amecal 9810..

[@stevewhite315]

Try testing meter cleanly this way first kzbin.info/www/bejne/joW4hpygecifjc0

[@acelectricalsecurity]

Looks like the same one, but a different colour

[@marke8732]

I know old post but very relevant to my situation. I've got a multicomp with same symptoms of bad readings on 2 conductors. I did see the video you mention when I bought mine. As you say a lot of these look almost exactly the same. what I didn't spot on the video last time I watched was how careful he was with positioning of the 2 cables within the clamp:) he wasn't so careful when clamping on the test load though:)

[@vbc2059]

This a CEM product and they are the worse in terms of materials and functioning. Just stay away from this brand.