Products > Test Equipment
A look at the Uni-T UT210E
digsys:
--- Quote from: TangLoz --- .... Or maybe i'm using it wrong? ...
--- End quote ---
Correct :-) You HAVE to separate the Pos and Neg (return) wires, and only clamp ONE of them !! Either one (usually).
You are reading a null field
RoGeorge:
--- Quote from: TangLoz on March 18, 2018, 11:16:23 pm ---After reading this great thread, i decided to buy a UT210E. However, my UT210E doesn't work properly. I'm not able to measure DC current from my cellphone charger. According to the USB tester, i should have around 1.1 A, but the UT210E only read 0.005 A. Do you I got a lemon? :palm: Or maybe i'm using it wrong? :-//
Here is how i clamped the meter on the wire:
* Leave the clamp meter next to the wire
* Select DC current
* Hit zero
* Clamp the wire
--- End quote ---
You need to clamp only one wire out of the two wires going to the phone. Either the positive only wire, or the negative only wire will do it, and the UT210E will show the expected current of about 1.1A.
If you clamp _both_ the positive and the negative wire, like it is shown in the picture, then the magnetic field coming from the positive and negative USB charging wires will cancel each other, so you will ideally see zero Amps. The meter is actually measuring the magnetic field induced in the clamp's ferrite core.
In the picture, the measured current is 0.005 Amps, which is pretty close to the expected zero Amps.
TangLoz:
Thanks! I think it's time for me to do my homework 8)
TangLoz:
--- Quote from: macboy on March 06, 2018, 03:59:52 pm ---It is not the same. Look more carefully. The Extech has a 600 mA range for AC only (0.1 mA resolution) plus AC/DC 6 A and 60 A ranges. The Uni-T has AC/DC 2 A (6 A with mods), 20 A (60 A with mods) and 100 A ranges.
--- End quote ---
The Extech looks like the Uni-t UT211b (same ranges, Hz function, 6000 counts), which is more expensive than the UT210E.
http://www.uni-trend.com/productsdetail.aspx?ProductsID=714&ProductsCateId=774&CateId=774
AudioNoob:
Is there a way to mod UT-210E so that the backlight does not shut off automatically? Or at least a way to increase the timeout?
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