AC/DC Clamp meter on Amazon that says it will measure 1mA - Page 1
Forum section: electronics / beginners

author: DW1961
author_rank: Frequent Contributor
timestamp: March 07, 2021, 07:41:34 am
content: For those who were asking about that clamp meter I received measuring down to 2-3mA in my other thread.There is one on Amazon right now that says it can measure to 1mA.https://www.amazon.com/dp/B08MX3PTBW

author: Simon
author_rank: Unknown
timestamp: March 07, 2021, 09:21:24 am
content: pft yea whatever. I am no expert in these things but I doubt it is the most reliable. As far as I know clamp meters are not meant to be that accurate anyway. If you want to increase the sensitivity of your clamp meter and there is the wire available then wrap it around the claw and then divide the reading by the number of turns.

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2021, 09:44:19 am
content: Why start yet another thread?That Amazon meter has the same resolution (they call it sensitivity) as your UT210E pro. When you get down to those levels with a DC clamp meter there are too many interfering factors (mainly the Earths magnetic field. You have to hold the meter in exactly the same orientation between zeroing and measuring to get 1mA resolution. Most people know this - there's plenty of reference in the main UT210E thread.If you want more stable resolution with a single wire pass-through then you'll need to get a standalone fixed current clamp and null its output yourself. Either that or use a shunt. You won't have the convenience of opening jaws or a zero button though.I really don't understand the 'Ok I'll get yetanotherunknown brand Amazon meter then' mentality. Especially with your fixation on VDRs and PTCs - what are you going to do if you open it up and find that it has less protection than the UT210E? It's never ending!

author: DW1961
author_rank: Frequent Contributor
timestamp: March 07, 2021, 05:52:35 pm
content: Quote from: Simon on March 07, 2021, 09:21:24 amWell, you can assume or test it scientifically. From, the website information:DC current: 6A/60A/100A 0.001A/0.01A/0.1A ±(3.0%+5counts) DC current(μA): 0-200μA 0.1μA ±(0.8%+5counts)

author: Simon
author_rank: Unknown
timestamp: March 07, 2021, 05:55:36 pm
content: you missed the point made because you wrongly assume you are right all of the time. Those specs are for certain conditions only.

author: DW1961
author_rank: Frequent Contributor
timestamp: March 07, 2021, 05:56:05 pm
content: Quote from: DW1961 on March 07, 2021, 05:54:28 pm1. Because this is a different meter than the other thread. Just trying to help.2. I'm not getting it.3. I don't have a fixation. I have interests.But, okay. Whatever. Your snarky assumptions are well taken.

author: DW1961
author_rank: Frequent Contributor
timestamp: March 07, 2021, 05:59:51 pm
content: Quote from: Simon on March 07, 2021, 05:55:36 pmYou assume I think I'm right "all the time." I do not.All specs are for specific conditions. What's the point of even stating that?I understand what you are saying. However, some may find that meter useful. The fact you don't doesn't mean others won't.Another poster said he was interested in a clamp meter that could measure 2-3mA. I'm just trying to help.What's with the attitude from you guys today? geeze.

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2021, 06:35:45 pm
content: You need to help rather than potentially mislead then...Quote from: DW1961 on March 07, 2021, 07:41:34 amThere is no difference in resolution or claimed accuracy between the two meters*(in fact the one you listed is a no-name clone - it even says 210E on it). To help somebody, you need to look at the actual specifications, not the fuzzy words at the top.Edit:*in fact on DC current clamp, the UT210E claims +/-2% + 3 digits whereas the clone is +/-3% + 5 digits.

author: DW1961
author_rank: Frequent Contributor
timestamp: March 07, 2021, 06:58:01 pm
content: Quote from: Gyro on March 07, 2021, 06:35:45 pmLook man, I posted the link with the specific information that the web page had. If people want to investigate, they can do such on their own. I'm not going to buy it and set up a test bench before I post a possible product others may want to investigate.What's wrong with you today? Man! Just leave me alone, ok? I don't need it.

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2021, 07:01:23 pm
content: Sure.