Products > Test Equipment
UNI-T UT61E Multimeter teardown photos.
SeanB:
Depends where you are, you can have a quite high power developed on a floating system, though as you say there is a lot of cable and such stuff, which likely is floating and is capable of withstanding 2kV WRT ground.
Short it to a good ground and see if it is AC or DC current that flows. Probably best to use a 10A range on a meter just in case, and a meter you are happy to make an oops with as well.
Yago:
Cheers Sean.
Will have a look this week and post findings.
Hmm, an old Avo might be getting a dusting off!
Lightages:
If you are only going to use the UT61E on the bench and not care if you have NVC, temperature, back light, safe input protection, faster and bigger digits, then the U61E is a better buy. These are the benefits of the UT139C. If you take the benefits away, the reason to buy anything go away, thus my ":wtf: |O"
The UT61E has three benefits only IMHO. #1 higher count, #2 higher accuracy, #3 PC connection included. Of those three the only thing of real importance for the common user is the PC connection which is rarely used anyway. The UT139C is a better buy because of the things I listed. The proper input protection and NCV detector means that you don't have to guess if you are using the meter on a high voltage/energy circuit because it is protected correctly and you can see if there is a live circuit before touching it. The UT139C is more versatile and therefore a better buy "if you don't need the PC connection", as I said.
gocemk:
--- Quote ---If we neglect the fact of the price difference and
the fact that I am working on voltages below 230V and
did never use temperature measurement with my UT70A,
would you (or others) still go for the UT139C?
If yes, why?
-Didix
--- End quote ---
Hi, since i own the both multimeters, here's my 2 cents:
The UT61E feels much more responsive, the autoranging speed is faster than the UT139C, especially for measuring resistance. The continuity tester is also slightly faster on the UT61E. If you ever need data logging capabilities (i do) the UT61E comes in really handy. I have used this multimeter with voltages up to 220 V AC while doing some basic electrical maintenance without a problem. On the other hand, the UT139C has better input protection, backlight, temperature measuremenr (only 1 degree resolution), NCV, low pass filter, and current clamp capability (up to 60A) which comes in handy while doing electrical work. I use this meter mainly while i am on field work working on automation equipment and cabinets. Having said all that, the UT61E is better suited in lab environments working with "low voltage" electronics e.g. MCU's, PLC's or other types of digital control (or similar) ELECTRONICS, while the UT139C is better suited for ELECTRICAL work. If the missing data logger and the slightly slower autoranging of the UT139C are not a deal breaker for you, go for that one. Both meters are great value for money so you won't make a mistake with either of them.
Didix:
Thank you guys
I think I will go for the UT61E.
As some of you are guessing right: I will primarily be using it on the bench!
For higher voltages and 'unknown' experiments I got my Fluke 76.
For temperature measurement my UT70A.
--- Quote from: gocemk on January 04, 2015, 02:36:42 pm ---The UT61E feels much more responsive, the autoranging speed is faster than the UT139C, especially for measuring resistance. The continuity tester is also slightly faster on the UT61E. If you ever need data logging capabilities (i do) the UT61E comes in really handy.
...
the UT61E is better suited in lab environments working with "low voltage" electronics e.g. MCU's, PLC's or other types of digital control (or similar) ELECTRONICS, while the UT139C is better suited for ELECTRICAL work.
--- End quote ---
--- Quote from: Lightages on January 04, 2015, 02:31:28 pm ---If you are only going to use the UT61E on the bench and not care if you have NVC, temperature, back light, safe input protection, faster ad bigger digits, then the U61E s a better buy.
...
The UT61E has three benefits only IMHO. #1 higher count, #2 higher accuracy, #3 PC connection included. Of those three the only thing of real importance for the common user is the PC connection which is rarely used anyway.
--- End quote ---
What I actually could use is a second Logger.
Therefore my unfortunately not yet answered question:
--- Quote from: Didix on January 04, 2015, 08:24:42 am ---Did anybody connect two UT61E via the USB Connector to the same computer?
Will this work?
--- End quote ---
I would be happy, if somebody has tried this out before ..
Well, actually I could buy the second UT61E with a serial interface.
Did somebody try that case? (one connected with USB and the other witch RS232 to the same computer)
-Didix
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