Products > Test Equipment
UNI-T UT61E Multimeter teardown photos.
analogix:
I'll only need to check if a household connection is live or not (max. 230V AC) and didn't even know what a busbar was until I looked it up ???
I finally found a GS version of the UT61E which can be delivered to my country, by going to Reichelt in Germany. The total price will be around EUR 112/US$ 125 with shipping taxes etc., so not exactly cheap. But as has been said here earlier there really aren't any meters in this price range (or even quite a bit higher) with the same features and that the GS version as least should be a safe bet when it comes to household voltages, right?
I might just go for it if that's the case and I won't need a separate meter/probe for those instances when I need to check for a live AC household voltage.
Apparently even the Amprobe meters are quite similar to the Uni-T ones inside, but have poorer features including a slow continuity test response.
joeqsmith:
--- Quote from: analogix on October 23, 2016, 09:56:38 am ---
--- Quote from: joeqsmith on October 23, 2016, 02:25:09 am ---While I do not consider this meter safe by any means and would NEVER suggest anyone modify their meter in any way, it is now very robust! If you want a nice robust meter, get Dave's little Brymen. That meter even comes with a back light!
--- End quote ---
Actually, without the in-depth knowledge you and others here seem to have, I think I might just risk making the multimeter more unsafe by trying to modify it, and would rather not.
So in conclusion, would you say that the "Chinese" version of the UT61E is unsafe to use (it won't be used for higher voltages than household AC 230V) as it is, and if I want a safe UT61E I would have to go for the "European GS-marked" version?
Which Brymen model are you referring to and how does it compare to the UT61E?
--- End quote ---
I would dare say that any time any of us make changes to a meter we have no idea how we effect the safety rating. This includes me.
I would have liked to run the GS version but it was hard to find. I assume that it is required to pass some sort of independent safety test to have the GS mark but I really don't know. I do doubt it would pass the EMC standards for ESD but that's not a safety requirement.
I was referring to Dave's rebranded BM235. If I were to pick between the Fluke 115, the HIOKI DT4253 and the BM235, I would go with the 235. The cost is a wash and at least from the tests I ran, the 235 is electrically very robust.
snovotill:
New updated UT61E schematic is available at "ESI Service Info" website!
Get the CORRECTED version. It shows new protective circuitry, though SG1 does not show a voltage rating.
Oddly enough there are two components labelled SG4 and this corresponds with the silkscreen!
http://www.eserviceinfo.com/downloadsm/68103/UNI-T_UT61E.html
WackyGerman:
--- Quote from: analogix on October 26, 2016, 08:56:01 pm ---I'll only need to check if a household connection is live or not (max. 230V AC) and didn't even know what a busbar was until I looked it up ???
--- End quote ---
In this case it is better to use a voltage tester such like Benning Duspol Series or Fluke T Series . I would never ever use a multimeter even not my Metrahit 29 S or Agilent U1241 B . A voltage tester shows you if the circuit is live or not directly and not weird digits like on multimeters with high input resistance . The VDE rules pretends you to use a voltage tester on 0 V measurements here in Germany
analogix:
The Benning Duspol series is quite expensive here, while the Fluke T-90 is a little lower, but still a bit costly for something I'll do quite seldom.
Interestingly Fluke also has a couple of "non-contact" voltage testers which are more affordable: the Fluke 2AC and Fluke LVD2 (see attached photos).
Are these suitable/safe for checking if mains power is on or off at an AC-outlet, a lamp socket etc?
Of course Uni-T also has a few contactless voltage testers, but if I'm aiming for safety it appears from all these postings that it would just be lucky guessing...
However, any of those voltage testers must be a million times safer than the mains testing neon lamp screwdriver I've used a few times. I just learnt that although it's legally sold it's very dangerous to use, so I'll be getting rid of it right away:
Youtube: Dangerous Device - Neon Mains Testing Screwdriver
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