Products > Test Equipment
New UNI-T UT892 2000V AC/DC High Voltage Multimeter
floobydust:
Who would trust Uni-T for safety or minimal honesty?
After that fiasco with the U-61E: obtain 61010 VDE approvals in Germany, then depopulate the three MOV's in production for the rest of the world. Really? Crappy ethics over $0.25 worth of MOV's causing most of the meters to fail and end up in landfill. That is a bullshit move.
Even the UT892 is hilarious, I like the switch and input jack "LIVE" should it be re-labelled "DIE"?
The only time you (i.e. electrician) need 2,000V is measuring a VFD DC bus and VFD's display that value anyhow. That also puts you in the over 1,000VAC league and WTF this meter has no place around CAT. IV gear. It seems to be a confused product "Designed according to CAT II 1,000V/CAT III 600V" but has no safety certifications or approvals. Are we still pulling that wool over the Westerner's eyes?
I think at best it's a 2,000V range multimeter (with no CAT ratings for that channel). Have to see a teardown and BBQ lighter test lol.
joeqsmith:
--- Quote from: floobydust on August 28, 2022, 06:50:54 pm ---Who would trust Uni-T for safety or minimal honesty?
... Have to see a teardown and BBQ lighter test lol.
--- End quote ---
We could get one and treat it as a special case, cause it's a special meter. Maybe just test the 2kV input only. I ran one of their high voltage sticks. It died fairly early on as well.
There have been several comments about the AVO meters. Maybe we could find one in decent shape run it against the UNI-T.
PartialDischarge:
--- Quote from: joeqsmith on August 28, 2022, 06:59:03 pm ---
--- Quote from: floobydust on August 28, 2022, 06:50:54 pm ---Who would trust Uni-T for safety or minimal honesty?
... Have to see a teardown and BBQ lighter test lol.
--- End quote ---
We could get one and treat it as a special case, cause it's a special meter. Maybe just test the 2kV input only. I ran one of their high voltage sticks. It died fairly early on as well.
--- End quote ---
I’ll do that when it arrives with my Hipotronics HD140
floobydust:
The UT892 manual says
"... withstand surge voltage up to 1000V..."
"Do not measure ACV/DCV voltage over 1000Vrms. It is possible to measure higher voltage but it may cause damage to the meter or user!"
so I'm assuming the usual functions have no decent input protection. That costs many pennies and the boss still wants a new Lambo :-DD
jhoffman:
--- Quote from: jhoffman on August 28, 2022, 10:01:28 am ---P.S. The attached image illustrates this meter being connected to a 3-phase electrical circuit. It must be safe. :wtf:
3 phase has nothing to do with 2KV.
--- End quote ---
My concern is that UNI-T is encouraging the use of the UNI-T UT892 multimeter (inc. the supplied crappy multimeter probes) in "high energy" application (coal mines !!!) electrical circuits.
You falsely state "3 phase has nothing to do with 2KV" when you consider transient voltages in real world practical situations. Last time I checked we still use electric motors with coil windings which have a habit of generating back EMF when you switch them on and off.
I originally created this post in the interest of public safety and awareness to "bait" people to see who would bite.
The fact is that this meter might be useful to people who know what they are doing.
For example if you are restoring (thermionic) valve equipment such as "valve radios" your not really going to encounter "high energy" from transient voltages.
So the UNI-T UT892 is probably a cheap and viable option for someone working on vintage valve radios or SMPS for example (perhaps?).
Just "horses for courses" and knowing your horses. :-+
I was simply concerned (horrified and disturbed !!!) that UNI-T created a "Trojan Horse Darwin Award Recipient Locator".
Honestly... look at the UNI-T UT892 marketing material and you will conclude it is criminally irresponsible for such a organization to publish such sh!t.
I can understand a potential Darwin Award Recipient attaching this UNI-T UT892 to the primary winding of an electrical sub transformer at the start of his street, but it's another when an OEM COTS test and measurement equipment manufacturer encourages this kind of stupid behavior.
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