UNI-T UT61B vs UT61C - Page 1
Forum section: electronics / testgear

author: inquirer
author_rank: Newbie
timestamp: October 01, 2014, 03:57:15 pm
content: UT61BvsUT61CCan someone explain what's the difference between these two multimeters? Thanks!

author: Monkeh
author_rank: Super Contributor
timestamp: October 01, 2014, 04:04:11 pm
content: The B is 4000 count, the C is 6000 count.

author: inquirer
author_rank: Newbie
timestamp: October 01, 2014, 04:09:50 pm
content: What does this mean and what about the different ranges in DC and AC voltage and current?

author: rolycat
author_rank: Super Contributor
timestamp: October 01, 2014, 04:15:29 pm
content: Take a look at Dave's explanation:http://www.eevblog.com/2009/08/21/eevblog-26-multimeter-counts-accuracy-resolution-calibration/

author: Monkeh
author_rank: Super Contributor
timestamp: October 01, 2014, 04:16:32 pm
content: Quote from: inquirer on October 01, 2014, 04:09:50 pmThose are exactly what it means.The B will measure up to 40mV with two decimal places, and the C will measure up to 60mV with two decimal places. They drop one digit when moving to 400mV and 600mV respectively, and on up the range.

author: inquirer
author_rank: Newbie
timestamp: October 01, 2014, 04:42:27 pm
content: Thanks guys!I watched the video. If I got it right both the c and b have the same accuracy?Is C better than the B?

author: inquirer
author_rank: Newbie
timestamp: October 01, 2014, 05:42:02 pm
content: I just saw that E has more counts and better accuracy.So accuracy wise the E is the best unit of the series, right?

author: rolycat
author_rank: Super Contributor
timestamp: October 01, 2014, 06:28:10 pm
content: Quote from: inquirer on October 01, 2014, 05:42:02 pmRight. The UT61E is generally reckoned to be a decent low cost meter for low voltage hobby use.The two major omissions are a backlight and temperature measurement.

author: inquirer
author_rank: Newbie
timestamp: October 01, 2014, 07:36:39 pm
content: Quote from: rolycat on October 01, 2014, 06:28:10 pmIt would be nice if the thermometer was included, but I can do without one. As for backlight according to there site it is included:http://www.uni-trend.com/UT61E.html

author: Monkeh
author_rank: Super Contributor
timestamp: October 01, 2014, 07:46:13 pm
content: Their site lies. It claims auto power-off too.

author: angelioto007
author_rank: Contributor
timestamp: December 22, 2014, 08:39:39 pm
content: can you guys please help me? i can´t decide beteween ut61c and ut61d. which one should i buy?

author: Lightages
author_rank: Unknown
timestamp: December 22, 2014, 11:20:24 pm
content: I would buy neither. IMHO the UT139C is a much better buy than the UT61B/C/D. It is arguable if you want a PC connection as the UT139C does not do this. It does have a back light, temperature, good input protection, fast continuity, and all the measurements you might want. The UT61E has a fast continuity test whereas the UT61B/C/D do not and it also is more accurate.If you do not need a PC connection I would strongly suggest the UT139C instead over any of the UT61X series.

author: Matje
author_rank: Regular Contributor
timestamp: December 22, 2014, 11:24:46 pm
content: Quote from: angelioto007 on December 22, 2014, 08:39:39 pmThe one that better fits your requirements and available money - you need to define your requirements obviously. The manuals are available online, read them.Differences I can see from skimming the manuals:C: has temperature measurement, has automatic sleep modeD: has separate AC and DC voltage on rotary switch, has true RMSSo, just decide what is more important to you. ;-)

author: DanielS
author_rank: Frequent Contributor
timestamp: December 23, 2014, 01:35:00 am
content: Personally, I got the 61E - I wanted the extra resolution partly as a sanity check for my 3 1/2 multimeters, most of which $5-10 cheapies simply for the convenience of being able to keep tabs on multiple supply voltages and currents at once instead of moving leads around.The display is fairly readable even under low-light conditions (ex.: scattered light from an LCD in an otherwise unlit room) so unless you need to work in near-total darkness, the lack of backlight should not be much of an issue.

author: angelioto007
author_rank: Contributor
timestamp: December 23, 2014, 10:33:11 pm
content: Quote from: angelioto007 on December 22, 2014, 08:39:39 pmi´ve decided, i´m gonna buy the c type, ´cause i´ll just need it to do low voltage stuff dc mainly, not high voltage and i want to replace my cheapo with something better, i don´t trust my cheapo any more - continuity test sucks on it and manual ranging is just waste of time...anyway thx guys for your suggestions and tips, really helped me

author: Lightages
author_rank: Unknown
timestamp: December 23, 2014, 11:18:34 pm
content: If I am correct, the C models has a very slow continuity test too. Let us know!And why would you spend the same money as a UT139C and get something much less well built and not as safe?http://www.ebay.com/itm/Uni-T-UT139C-True-RMS-Digital-Multimeter-with-Temperature-NCV-Backlight-/171213085325?pt=LH_DefaultDomain_0&hash=item27dd185a8d

author: retiredcaps
author_rank: Super Contributor
timestamp: December 23, 2014, 11:43:59 pm
content: Quote from: Lightages on December 23, 2014, 11:18:34 pmC continuity is slow. See 7:30 into videoElectronupdate is a member here and originally postedhttps://www.eevblog.com/forum/testgear/uni-t-ut61c-multimeter-teardown-and-review/In addition, his UT61C is broken trying to help someonehttps://www.eevblog.com/forum/beginners/broken-uni-t-ut61c-or-am-i-missing-something/And at least one UT61C was shipped with a missing resistor which I helped the OP discover.

author: miguelvp
author_rank: Super Contributor
timestamp: December 24, 2014, 03:03:14 am
content: If you can change the count the continuity test will be faster I think, but don't hold me to it

author: DanielS
author_rank: Frequent Contributor
timestamp: December 24, 2014, 11:18:56 am
content: Quote from: miguelvp on December 24, 2014, 03:03:14 amThe UT61E (the 22 000 counts model) has very fast, quick-latching (as in non-scratchy) continuity testing.Getting the bundled probes to make good contact for continuity testing can be somewhat irritating though.