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A look at the Uni-T UT210E

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Evgeniy:

--- Quote from: Neutrion on April 11, 2023, 02:03:57 pm ---What do you think the voltage was about what you tried to measure?

--- End quote ---
I think approx 2kV.


--- Quote from: Neutrion on April 11, 2023, 02:03:57 pm ---Are the V sense input pins of the micro a dead short or what is the resistance?

--- End quote ---

Neutrion:
I mean the microcontrollers pins directly after the MOVs and PTC's. But actually what you just measured is also strange, as in voltage mode the resistance should be around 10 Mega Ohm.
And of course I suppose the micro is the same as in the ut210-e.

Evgeniy:

--- Quote from: Neutrion on April 12, 2023, 11:20:01 am ---I mean the microcontrollers pins directly after the MOVs and PTC's. But actually what you just measured is also strange, as in voltage mode the resistance should be around 10 Mega Ohm.
And of course I suppose the micro is the same as in the ut210-e.

--- End quote ---
Ouh, can you tell me the pin on micro?

Neutrion:
I don't have your meter, but if you follow the trace through the protection devices you will end up at the input pins of the microcontroller where it senses the voltage. If it is zapped I suppose some change of its input resistance there.(I can check it on mine a bit later) IF it is the same micro but I suppose it is. What's written on it?

Evgeniy:

--- Quote from: Neutrion on April 12, 2023, 11:49:20 am ---I don't have your meter, but if you follow the trace through the protection devices you will end up at the input pins of the microcontroller where it senses the voltage. If it is zapped I suppose some change of its input resistance there.(I can check it on mine a bit later) IF it is the same micro but I suppose it is. What's written on it?

--- End quote ---
Micro is same DTM0660.

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