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| Did i destroyed my Fluke 179 by measuring resistance on 220V live wire |
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| slavoy:
--- Quote from: coromonadalix on August 11, 2023, 05:46:25 pm ---@slavoy i would not say that, if the design is not well done auto-range as nothing to do with that, many parts could blow before the auto-range kicks in ... pls name your modern chineese stuff loll --- End quote --- Auto-range is on the low side, 1000V protection is very common in many cheap multimeters like UNI-T, Habotest etc. for every input. I've checked a few myself. |
| Gyro:
--- Quote from: slavoy on August 13, 2023, 08:21:27 am ---Auto-range is on the low side, 1000V protection is very common in many cheap multimeters like UNI-T, Habotest etc. for every input. I've checked a few myself. --- End quote --- I'm not sure whether you are being serious or naive. I suggest you read... https://www.eevblog.com/forum/testgear/a-list-of-multimeters-that-do-not-appear-to-meet-their-claimed-safety-specs/ |
| BeBuLamar:
--- Quote from: Fungus on August 13, 2023, 05:47:30 am --- --- Quote from: BeBuLamar on August 12, 2023, 11:06:05 am ---I have done it enough time with the Fluke when I was in a hurry tried to measure voltage (120V to 480V) with the test leads plug into the current measurement jack. It blewd the fuse but I am glad that it blew the expensive fuse because the cheap fuse may explode. --- End quote --- a) Always put the leads back to the voltage socket after measuring current. NEVER store it with the leads in the current jack, it's guaranteed way to blow a fuse. b) Get a meter with beep-alert on the current jacks. I personally wouldn't buy an expensive meter without that feature, but many Flukes don't have it. PS: I've deliberately plugged $13 meters into the mains on resistance mode and they survived. --- End quote --- Well I always did that with a Fluke 87v which does have the beep alert. I put it on current measurement mode to use as a jumper, put the meter down. Then in a hurry I pick it up trying ot measure the voltage. Sometimes it's just 24VDC but at times it's 120VAC, 240VAC or even 480VAC. It's because I work in a hectic environment. Never did that with any other meters I have. |
| slavoy:
--- Quote from: Gyro on August 13, 2023, 09:29:19 am ---I'm not sure whether you are being serious or naive. I suggest you read... https://www.eevblog.com/forum/testgear/a-list-of-multimeters-that-do-not-appear-to-meet-their-claimed-safety-specs/ --- End quote --- I'm not quite sure what this has to do with the topic. --- Quote from: coromonadalix on August 11, 2023, 05:46:25 pm ---pls name your modern chineese stuff loll --- End quote --- Here are some. I can turn the knob all day and nothing will happen. |
| Gyro:
--- Quote from: slavoy on August 13, 2023, 03:59:36 pm ---I'm not quite sure what this has to do with the topic. --- End quote --- The OP was using the meter on mains, safety is relevant. --- Quote ---Here are some. I can turn the knob all day and nothing will happen. --- End quote --- You should never turn the function dial on a meter while high voltage is applied. You specifically referenced autoranging, so there wouldn't be any reason to even be changing voltage range. |
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