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UNI-T UT61E Multimeter teardown photos.

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Mikeva:
Hi guys,
I just bought the UNI-T 61E  and i have to say... it's awesome for the price .I know that it's not for measurements  phase to phase etc...
But please answer me this:
Is it safe to use it measuring dc voltage on a tube amplifier?I'm talking about 400-500VDC maximum.
What about ac voltage?380 VAC Is it too much?

can anyone please  answer me this?Thanks for your time!

Lightages:
I would use it for a PS for a tube amp.

Its is also probably OK for 380VAC and you most likely won't have a problem. The thing is that you never know when there will be a problem on the line, like a spike, that could kill the meter or injure you. Personally I would avoid using it for that use, but you will almost always have no problem. It is the infrequent occurrence that hurts or kills someone that causes meters to need the safety ratings that we have now.

HKJ:
There are generally two safety problems with DMM.

One is measuring voltage in high current circuits with probes connected to the current terminal on the DMM. If the DMM is without fuse or a "cheap" fuse it may not be able to break the current and will explode.

The other is spikes. There is a risk for high voltage spikes on the mains. This can lead to arcs inside the DMM and again you risk explosion.

The above is usual not a problem behind a small transformer.

Mikeva:
Thanks for the reply guys!
Well that make sense....I'll give it a chance.

v3n0m3n0:
Hi guys ! 

Just bought new UNI - T 61E on ebay, after a closer look I found out that my unit has different PCB layout compare to this what I've seen before. 

What do you think,  improved construction will help to pass the European safety tests as CAT III 1000V multimeter ?

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