Official: Masterflex Calcium Reactor Setup Thread

Anyone familiar with a code P?0 and unit failure? 7550-60 stopped working and showed code P?0. Upon inspection the Belt had snapped. I replaced the belt and replaced brushes while i was at it. Repowered and still not working - shows P?0. Unit does not respond to any buttons. So far no one knowledgeable at cole palmer tech support. Thanks!!!


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gdemos said:
Anyone familiar with a code P?0 and unit failure? 7550-60 stopped working and showed code P?0. Upon inspection the Belt had snapped. I replaced the belt and replaced brushes while i was at it. Repowered and still not working - shows P?0. Unit does not respond to any buttons. So far no one knowledgeable at cole palmer tech support. Thanks!!!


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They try to sell me a $3000 replacement. CP customer service not what i used to be


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gdemos said:
They try to sell me a $3000 replacement. CP customer service not what i used to be


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I identified the P?0 code had to do with local/remote control setting and fixed that

Now i find that the belt wheel has some play on the shaft (moving belt closer/further to the head)

The belt wheel tends to move further from the head therefore the male end of head is not contacting the belt wheel

Looks like if there were a bushing in the belt wheel shaft it would hold the wheel to the head , but there is no such bushing.

Please look at the pics. Is the male end of this head worn down? Pica show amount of play in belt wheel.
9e2008ca23c57d008463299577736f78.jpg
c1c15b5d64645b61f00973c6662cf64e.jpg
a40558708256fb50b5cd6b9303f90f0f.jpg
1d835c05d4bf6a1de2c0378f9ceca99e.jpg
447f7db14095e44e53aa2e6052e928ee.jpg



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So question... Im trying to essentially set up a water change system. For some reason it is not pumping the same amount in as is taking out.. Running off the same pump. Both heads using ls17
Any ideas why its not pumping the same amount
 
Last edited:
Wow if you think you are reaching the bottom end of your ph have you thought about another reaction chamber


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Ok so I setup my pump today for the first time it set it to pull through the reactor and it's feeding 5ml in 31.2 seconds


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gdemos said:
I identified the P?0 code had to do with local/remote control setting and fixed that

Now i find that the belt wheel has some play on the shaft (moving belt closer/further to the head)

The belt wheel tends to move further from the head therefore the male end of head is not contacting the belt wheel

Looks like if there were a bushing in the belt wheel shaft it would hold the wheel to the head , but there is no such bushing.

Please look at the pics. Is the male end of this head worn down? Pica show amount of play in belt wheel.
9e2008ca23c57d008463299577736f78.jpg
c1c15b5d64645b61f00973c6662cf64e.jpg
a40558708256fb50b5cd6b9303f90f0f.jpg
1d835c05d4bf6a1de2c0378f9ceca99e.jpg
447f7db14095e44e53aa2e6052e928ee.jpg



Sent from my iPhone using Tapatalk
Click to expand...

Interesting, haven't seen one of those apart. You could try to get a polymer bushing/washer of some sort to keep it in place. Was this unit working before? Are you sure all parts are there?
 
balz3352 said:
So question... Im trying to essentially set up a water change system. For some reason it is not pumping the same amount in as is taking out.. Running off the same pump. Both heads using ls17
Any ideas why its not pumping the same amount
Click to expand...

Different head pressures and occlusion combined are probably the culprit. I've run into this before. With AWC systems it's a good idea to have adjustable occlusion heads to compensate. One way to get around this is to increase the length of the tubing on the pump head that is running faster. I've done this in the past with success.
 
Yes at first i thought i misplaced a part! Its all there. This unit has been running well for at least two years.
I know the male end of that head is worn some but not familiar enough with what a newer head looks like to say if the ware is the issue - would a new head have enough beef on that male tab to keep contact?


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Let me take a look tomorrow but I think you're head is fine. Some pump drives require what is called a "long shaft" pump head but I don't have any personal experience with them. If it was working fine before something funky is going on.
 
Okay so I just setup my calrx.
I'm running 30 ml/min and 30bpm. My ph is stable at 6.69. 15psi on 5 lb tank.

Geo6x12
5lb tank
Ap Carbon doser
L/s 17 tubing on cole parmer pump.
Reborn media and zeomag
Apex controller with ph probe calibrated.


I've read to shoot for a 6.5ph inside the chamber. I can only get to 6.69 and my tank is at the max at 15psi. I am new to calcium reactors. Is 15psi too high? Any recommendations?

I'm in the first couple hours so still unclear if I need to bump up or down ML/MIN


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Anddddddddddd we are not stable. Slowly going down to 6.55 ph without adjusting. After an hour[emoji15]


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