Help with MC122 Milwaukee pH controller.

[HM3105]

Hey all,

I need some help, has anyone tried to replace the power supply for the Milwaukee pH MC122 regulator? I've tried two different 12v power supplies without any luck.

Here is the unit
http://www.milwaukeeinst.com/site/component/content/article/231

and I've tried these

https://www.amazon.com/gp/product/B01ISM267G/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B01H29RKCW/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

So what am I missing?

I have two of these and the power supply for the other tells the units work but neither of these power supplies will work. Completely stumped.

So please help?

 

[Dr. Reef Verified Sponsor]

reverse polarities maybe..
can you post pic of the original power supply with the specs on it.

 

[HM3105]

reverse polarities

Can you expand on this?

 

[Dr. Reef Verified Sponsor]

sometimes the positive is negative and negative is positive on those cheap Chinese adaptors. before we do anything post the pic of original supply with clear shot of the power rating specs so i can better assist you.
could be many thing like reversed polarity, not enough amps etc.

 

[HM3105]

sometimes the positive is negative and negative is positive on those cheap Chinese adaptors. before we do anything post the pic of original supply with clear shot of the power rating specs so i can better assist you.
could be many thing like reversed polarity, not enough amps etc.

Here ya go

 

[HM3105]

That's it, you're a genius...