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Phillips/Fluke PM2811 power source
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Topic: Phillips/Fluke PM2811 power source (Read 5974 times)
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mrjoda
Regular Contributor
Posts: 80
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Phillips/Fluke PM2811 power source
«
on:
October 12, 2017, 07:11:27 am »
Hello members,
i bought PM2811 for very reasonable price, so there are some photos. There is a small viciousness. Unit was bought from USA so it was set as 115V voltage. I quickly read this topick
https://www.eevblog.com/forum/blog/eevblog-755-fluke-pm2812-psu-ebay-score/
and i set jumper to 220V position. I closed unit, power it up... blown both fuses, main circuit braker and every circuit breaker in series
So what happened ? I take out power supply, checked all the components, all OK... then i saw it...
«
Last Edit: October 12, 2017, 07:16:17 am by mrjoda
»
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mrjoda
Regular Contributor
Posts: 80
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Re: Phillips/Fluke PM2811 power source
«
Reply #1 on:
October 12, 2017, 07:13:43 am »
more photos
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3g57
Regular Contributor
Posts: 72
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Re: Phillips/Fluke PM2811 power source
«
Reply #2 on:
February 18, 2018, 02:45:35 pm »
Hi all!
I see big interest from many members to Fluke/Philips PM2811 PM2812 PM2813
So I'll show photos of some nodes and test points in calibration process.
You'll understand many thing by watching the photos.
I ready for answering for Your questions.
Best regards, Anatoliy
Adjustment Fotos
PHOTOS OF MODULES:
Calibration procedure in attached PDF file.
PHILIPS 2813
PHILIPS 2813
I wish You a good repairs, 3G57
«
Last Edit: February 24, 2018, 08:17:16 pm by 3g57
»
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mrjoda
Regular Contributor
Posts: 80
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Re: Phillips/Fluke PM2811 power source
«
Reply #3 on:
June 02, 2018, 05:17:56 pm »
How my Phillips die
I have been charging 4pcs of 18650 as usual (4pcs TP4056 parallel) with PM2811. I have been checking a current whole time. Everything was normal. I went make some cofee and after while "there is something in the air", i ran to my room and room was full with smelly fume. I looked at the batteries and two of them were around 80°C degrees. So i took them on my balcony in case they want to catch a fire. Power supply was turn off so i knew there is a issue more than hot batteries. I opened the enclosure and i didn't saw any damage. There was a stinky brown liquid around input EMC filter and everithing was clear - capacitor in EMC filter goes to silicon heaven. So i carefully open it (with hammer and chisel of course) and i was correct.
But i have no idea what happened. Batteries have 4,02V so they are not shorted out. Why they went so hot ? Current limit was set to 4A and TP4056 for 1A.
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sleibson
Newbie
Posts: 6
Re: Phillips/Fluke PM2811 power source
«
Reply #4 on:
August 17, 2018, 04:56:27 am »
Anatoliy,
It seems you've made many mods to your PM2811. Have you documented them. The one I'm especially interested in is your replacement of the EL backlight with LEDs. I have yet to figure out how to safely unsnap the keyboard/display board from the plastic clips holding it in place.
Thanks,
--Steve
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