Official: Masterflex Calcium Reactor Setup Thread

[Haksar]

Typical brush model noise , have the same on my 7523-40 too. Earlier had some squeaking noise and it cleared up after spraying wd 40.

 

[rovster]

OK, its REALLY loud, video doesn't do the low frequency justice. Where would you spray the WD40? Should I pull the motor apart? Don't want to make things worse. I thought like a bearing grease would be better than WD40. Thanks.

 

[vhuang168]

Official: Masterflex Calcium Reactor Setup Thread

On YouTube video comparisons I hear that same hum coming from the brushless models. I don't think the hum is a result of brushes


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My brushless model is practically dead silent. The MP10 dry sides are louder.

A lot of the noise is also dependent on rpms. I'm running at the lowest speed. If I prime it at the fastest then yes, there is noise.

But that is why the recommendation is for the 600rpm model instead of the 100rpm.

At 10rpm, I'm using 1/60th of the speed vs 1/10.


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[Bpb]

The noise ours makes is the same whether you run at 6 or 600 rpm. Yes at higher rpm it jntroduces more noise, but that electrical him is there regardless once you hit start, and increasing or decreasing the speed doesn't have any effect on it


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[rovster]

The noise ours makes is the same whether you run at 6 or 600 rpm. Yes at higher rpm it jntroduces more noise, but that electrical him is there regardless once you hit start, and increasing or decreasing the speed doesn't have any effect on it


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This is my observation as well. At higher rpm the moving parts make ore noise but the hum is always there. If greasing or replacing brushed stands a good chance on silencing it I'd do that. If this is normal oh well, should have gone brushless lol

 

[slief]

This is my observation as well. At higher rpm the moving parts make ore noise but the hum is always there. If greasing or replacing brushed stands a good chance on silencing it I'd do that. If this is normal oh well, should have gone brushless lol

You do not grease the brushes and they do not contribute to the hum. The only noise I have heard as a result of the brushes are the occasional squeak. The hum is 100% normal with the brushed models. If it's really bothersome, take some towels and wrap it around which will mute most of the sound.

 

[rovster]

Thanks slief at least I feel better now that I don't have a faulty pump!

 

[souk]

I just received my 77201-60 head but it didn't come with any screws to mount it to the masterflex. I'm pretty sure its been ask already and I haven't seen it yet going page by page. if any body knows the size please help out.

thanks!

 

[dendrite]

Not sure about sizing, but hope that someone on here has an extra set. Otherwise Cole Palmer will be happy to sell you a set for thirty odd dollars for two

 

[Bpb]

Has anyone gone about replacing brushes on their unit? I don't think I need to currently, but in the event I do, is it a pretty easy process? As in someone with very little experience in working with electric motors can do without a lot of trouble or special tools?


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[slief]

Has anyone gone about replacing brushes on their unit? I don't think I need to currently, but in the event I do, is it a pretty easy process? As in someone with very little experience in working with electric motors can do without a lot of trouble or special tools?


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Replacing brushes is very easy. Disconnect the power. Remove the cover and on the back half of the pump are two black plastic screw in caps. Remove the caps. The brushes will pop part way out. Pull them out, slide the new ones in. Screw caps back in and put the cover back on.

 

[Madehtsobi]

i just noticed today on my 7520-50 unit that theres like "zzzzzzzz" sound coming from it...where would i spray some wd-40 or other type of lubricant in it?

 

[souk]

My unit finally arrived! I can't wait to set it up. Just gotta find some hardware to mount the head. Don't really wanna drop 30 bucks on 2 screws. Hopefully Ace will have something I can use.

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[swk]

I believe any 8/32 threaded rod is what you're looking for.

 

[souk]

I believe any 8/32 threaded rod is what you're looking for.

Thank you! From measuring the head to the unit I think it's 3.25" that I need. Off to Ace.

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[SkyReef]

Masterflex L/S 7523-60 "ER 1" Readout Upon First Purchase

Masterflex L/S 7523-60 "ER 1" Readout Upon First Purchase

My used Masterflex L/S 7523-60, with an easy-load II pump head arrived today. I bought it on eBay for $595.00. Upon turning the device on, the LED display reads "ER 1," which I take to mean Error Code 1. In another post on this thread, another purchaser also had this same error code, and it was suggested there that such an error was an internal problem. I have contacted the seller. However, in the meantime, does anyone know what "ER 1" means and can I fix this problem, or do I need to return it to the seller?

 

[BillFW]

My used Masterflex L/S 7523-60, with an easy-load II pump head arrived today. I bought it on eBay for $595.00. Upon turning the device on, the LED display reads "ER 1," which I take to mean Error Code 1. In another post on this thread, another purchaser also had this same error code, and it was suggested there that such an error was an internal problem. I have contacted the seller. However, in the meantime, does anyone know what "ER 1" means and can I fix this problem, or do I need to return it to the seller?

The manual (available on line BTW) doesn't explicitly list error #1 but has an "All other errors" category which states "internal error". Clear by turning off and back on. It that doesn't work, return unit for repair.

 

[SkyReef]

The manual (available on line BTW) doesn't explicitly list error #1 but has an "All other errors" category which states "internal error". Clear by turning off and back on. It that doesn't work, return unit for repair.

Thank you BillFW. I won't be returning it for repair; I will be returning it for a refund.

 

[Dapg8gt]

If you're talking about the newer style Masterflex Digital in the link below, that is a GREAT brushless pump and is basically the same one I use.
http://www.coleparmer.com/Product/M..._Drive_600_rpm/EW-07551-00?SearchTerm=7551-00

I have this same model that will not turn on at all.. Looks to be in great condition physically but just no power whatsoever.. Called Cole parmer and they only have a flat rate to fix units
( $600) so I'm hesitant to spend that kinda $ on it.

Have you had to get inside it yet? Know of anyone who does repairs other than Cp? Swapped the fuse and no dice, everything inside looks good visually..

May be time to sell it to someone who can fix it, I bought it from a seller who stated they could not test it as it was missing the fuse as is.. Gambled and lost lol..

 

[slief]

I have this same model that will not turn on at all.. Looks to be in great condition physically but just no power whatsoever.. Called Cole parmer and they only have a flat rate to fix units
( $600) so I'm hesitant to spend that kinda $ on it.

Have you had to get inside it yet? Know of anyone who does repairs other than Cp? Swapped the fuse and no dice, everything inside looks good visually..

May be time to sell it to someone who can fix it, I bought it from a seller who stated they could not test it as it was missing the fuse as is.. Gambled and lost lol..

You can ship it to me and I can take a look at it. I'd be interested in it depending on what it needs. I run a computer manufacturing business and also do component level repairs so I could probably fix for you or buy it from you. If you are interested, send me a PM and I will get you my address. Once I get it, I will be able to provide and estimate for repair or purchase. It will take me a day to evaluate.