- This topic has 6 replies, 2 voices, and was last updated 3 years, 8 months ago by Anonymous.
- May 14, 2019 at 1:28 am #20167BernardGuest
I’ve had a lot of power supplies die on me, and I’m suspecting periodic voltage peaks on the mains to be the source of the failures.
Can I use the mooshimeter as a data logger to verify this? Will it be able to record transient voltage peaks? If so, how long could it record for unattended?
- May 14, 2019 at 6:14 am #20168AnonymousInactive
I am currently using my Mooshimeter for exactly this purpose. It will depend on the duration of the peaks. With a setting of ‘No Wait’ I get data at about 3Hz. 24 hrs results in a data file of about 18 Mb. You can put a 32 Gb micro SD in your meter. This will give an amazing amount of recording time. Unless my math is way off, this says you should be able to get about 5 years worth of data. Of course, your batteries will not last quite that long. When the batteries get low, the blue tooth will cease functioning and you won’t be able to tell the meter to stop logging. I am not sure if this will result in a corrupted data file. I can’t tell you how soon this will occur as it depends on too many factors (type and condition of batteries, etc.). I momentarily stop logging, check battery and swap SD cards every 24 hours. I ground out the access port for the SD card with small drills and files so I don’t have to continually take the meter apart.
I hope this long-winded reply helps.
- May 14, 2019 at 6:32 am #20169AnonymousGuest
Thank you, that very much helps :)
I’ll order one now.
- May 14, 2019 at 7:30 am #20170AnonymousInactive
If you can find one at a decent price + shipping, let me know. The best was on Amazon, but they are out of stock. I want a second so I can watch both 120 VAC legs at the mains.
- May 14, 2019 at 7:38 am #20171AnonymousInactive
Be aware that the first column in the data file will be the date-time in UTC format with time base of Jan 1, 1970.
- May 14, 2019 at 12:08 pm #20173AnonymousInactive
Also be aware that the meter will use UTC for the file date as well. This can result in the file date being 1 day past the actual data.
- May 14, 2019 at 12:16 pm #20174AnonymousGuest
That’s alright, I run Linux, so UTC is what I’m working with anyway :)
I’m in Europe, and can find them locally for around 130 euro.
A bit pricey, but if I get them shipped from the US I’d get hit with a 15 euro customs clearance fee, and 21% VAT over the price + shipping + that customs fee. So I’m pretty sure I’d be off even worse then…