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| I recommend Multimeter with limited budget |
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| Trader:
I really wonder how unsafe is a DMM, I mean, around the world (most in poor countries) there are thousands of people working for years with just a simple DT830 in several electric/electronics areas with 600V+ (I don't recommend this). I think the Aneng AN870 or the Uni-T UT161 are pretty ok for a 600V-1000V range, and the most important is the Probe (20A probe is pretty safe). |
| bdunham7:
--- Quote from: Trader on November 04, 2021, 05:15:06 pm ---I really wonder how unsafe is a DMM --- End quote --- And then you post a video showing a cheap DMM literally exploding and flames coming out of the power strip that it is connected to..... Yes, the worldwide DMM mortality rate is probably pretty low. However, I see no reason that someone willing to spend 100 Euros should buy cheap junk. |
| Trader:
--- Quote from: bdunham7 on November 04, 2021, 05:44:09 pm --- --- Quote from: Trader on November 04, 2021, 05:15:06 pm ---I really wonder how unsafe is a DMM --- End quote --- And then you post a video showing a cheap DMM literally exploding and flames coming out of the power strip that it is connected to..... Yes, the worldwide DMM mortality rate is probably pretty low. However, I see no reason that someone willing to spend 100 Euros should buy cheap junk. --- End quote --- I said "I don't recommend" that DMM, I just want to show that even if you try to measure the "current in your mains", only the DMM will be harmed (most of the time). The main point is about the AN870 and UT161, both are safe; the AN870 has a strong rubber protection, the UT161 has a high brand fuse and several PTCs. I had a similar accident with a cheap chinese DMM and just the fuse exploded. The DT830 has no fuse, maybe this is the reason the DMM exploded (the DMM is the fuse, LOL). |
| Bobson:
--- Quote from: Trader on November 03, 2021, 07:30:47 pm --- I found an Excellent DMM, the best option you can find for that price, and it's on Italy. This is the Same Mastech MS8218, for Only 50 euros!!! A bargain. Check the datasheet, it can't measure high capacitors, but all other measures are like a high end DMM. --- End quote --- As a previous owner of this piece of s*t, I can say it is in no way Excellent or like a high-end DMM. It is incredibly slow, bargraph is ultraslow, PC connectivity software is a nightmare. |
| rsjsouza:
--- Quote from: Trader on November 04, 2021, 05:15:06 pm ---I really wonder how unsafe is a DMM, I mean, around the world (most in poor countries) there are thousands of people working for years with just a simple DT830 in several electric/electronics areas with 600V+ (I don't recommend this). --- End quote --- The major issue with ultra-cheap meters is that you can't always guarantee what you are getting over the years. The Mastech M830 clones such as the DT830 you mentioned have been through so many iterations of price reduction that you can't really know what you are getting. Check the thread below for details about these meters over the years: https://www.eevblog.com/forum/reviews/harbor-freight-cen-tech-90899-small-teardown/ Even Uni-T was caught doing that with their UT61E meters (the precursor to the UT61E+ discussed here). The issue with the video is that the meter not only failed to contain the explosion but such event will scare you enough to cause a good injury in case you are on top of a ladder measuring a lightbulb socket, for example. By the way, the guy in the video should not be holding the already very frail probes with both hands - any issues and his heart will take the impulse. --- Quote from: Trader on November 04, 2021, 05:15:06 pm ---I think the Aneng AN870 or the Uni-T UT161 are pretty ok for a 600V-1000V range, and the most important is the Probe (20A probe is pretty safe). --- End quote --- Just be careful that, apart from vacuum tube circuits, those voltage levels are mostly present in systems with quite a large power delivery (a three phase system, distribution panel, etc.) |
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