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Finally on the pad... MEP-003A

panic_button

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I put it thru it paces today. With everything on in the house, 2 fridges, upright freezer, 2 under counter ice makers, ceiling fans, computers, hot water heaters etc it barely registered on the load meter and stayed right around 62hz. With it running the 5 ton AC, it ran steady at 50% power, it did spike the gauge and belch some smoke when the compressor kicked in, hz dropped to 58hz then went back to 60hz. The % of load meter I think is the wrong one, looks like ones on a MEP-002 but it was only $10...
 

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Nonotagain

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Your frequency meter appears to have a couple of bubbles inside almost like the gauge is glycerine filled.

If you have any of the newer appliances, they can be damaged by operation out of the proper frequency.

I run power conditioners, APC UPS units on the fridge with digital controller and the TV/computers. Never can be too safe.

How stable was the voltage when the load came onto line? The UPS will protect for that also.
 

Speddmon

Blind squirrel rehabiltator
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I really like the add-on frequency meter!!!!

The % load gauge is the same between the 002a and 003a so it can't be the wrong one.
 

panic_button

New member
88
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Location
Emerald Coast, FL
Your frequency meter appears to have a couple of bubbles inside almost like the gauge is glycerine filled.

If you have any of the newer appliances, they can be damaged by operation out of the proper frequency.

I run power conditioners, APC UPS units on the fridge with digital controller and the TV/computers. Never can be too safe.

How stable was the voltage when the load came onto line? The UPS will protect for that also.
The meter is a replacement and is a regular % meter off the net.

Voltage drop was about 3v, I keep the unit at 62hz and 120v. Under load it was at 119.4v. My local power is 59.5hz and 115v so I'm sure I'm good.

I have a whole house line conditioner and surge suppressor. TV's & PC's have UPS's on them already.


I really like the add-on frequency meter!!!!

The % load gauge is the same between the 002a and 003a so it can't be the wrong one.
Freq meter is a $9 ebay special in a $4 Radio Shack "project box". 15 minutes with a dremel and some black RTV to seal it tight.

The meter that came off the MEP and the current one, the scales are different. At 100% the needle position on the installed gauge is at the position 80% on my old one.
 
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