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Post by biobill on Jul 1, 2021 20:36:30 GMT
I have a dialog machine that the solecart will not fill , any ideas?
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Post by Chuck Weddle on Jul 2, 2021 7:33:31 GMT
A couple other common causes I have seen:
1. Debris stuck in the bottom nipple/tubing. I think this happens from staff twisting the Solcart and cutting off the seal instead of it just being punctured.
2. Kinked tubing. A common place is the tubing from the bottom housing at the concentrate tubes.
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Post by SrCusEngr on Jul 2, 2021 21:39:14 GMT
Hopefully, you are using the newer type cartridges that do not require to be punctured to work. All current Solcarts are puncture free. The following is based on a Version 9 machine.
1. Do you see liquid flowing thru the top tubing during the Fill process? If not, check for these possibilities:
a. VBKO not opening. Test by disconnecting the output tubing to see if it opens and water flows out.
b. DBK If the spring is weak, it may be 'stealing' water from the Cartridge when VBKO opens to fill.
c. Insure the infusion pole is properly aligned (the bottom notch) with the Cartridge holder bottom half. Why? When the cartridge is installed, the thumb release pin must be latched in place. The alignment of the notch on the pole is very important. If the pole is slightly twisted out of alignment, the latching pin may not keep the top half in place and the pressure that starts to build up in the cartridge pushes the top holder away. When that happens, the upper valve will close and no water will flow into the cartridge.
2. Make sure VBKS is opening when required.
3. Water should flow into the cartridge to the top. There will be pressure in the cartridge (especially from bicarb starting to degas) but not enough to stop the flow. If you pay attention to a working machine, you will see the water flow into and then away from the cartridge. If your machine is not acting that way, it may not be relieving the pressure as it fills.
Please post your findings.
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Post by biobill on Aug 5, 2021 14:13:02 GMT
I am still having the same issue but now I have the bicarb cartridge not connected correctly. Bar. I assume this would have something to do with it not filling. Any help would be appreciated
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Post by biobill on Aug 5, 2021 14:14:26 GMT
Also it’s just dripping water into the cart
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Post by SrCusEngr on Aug 8, 2021 4:31:55 GMT
Because flow paths are different, what version software is your machine?
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btech
New Member
Posts: 46
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Post by btech on Aug 10, 2021 7:20:41 GMT
This sound like a worn out DBK spring or washer. Have you checked it? Also check the FBic filter for any calcification.
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Post by biobill on Aug 12, 2021 12:48:02 GMT
Version 9.1. Software and yes changed the dbk with a brand new one
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Post by SrCusEngr on Aug 15, 2021 15:48:59 GMT
Okay, I have a few free hours to reply. First, look at your water path. The fluid path to VBKO. the water inlet valve to the cartridge, is coming from the heater output. But the heater output also needs to fill the heated water side of the water block! It does this by flowing thru DBK. So if VBKO is closed, all the fluid goes thru DBK to the water block. When VBKO opens, fluid takes the path of least resistance (DBK only opens when the pressure exceeds 500 mmHg)[NOTE: if you installed a new disk in DBK {cream color with a concave cavity}, be sure you installed it flat side up!]
So where does this fluid come from? From the degassing pump, EP! If the path from the heater outlet to the top of the cartridge is free-flowing (you can test that in TSM with a syringe full of RO water. Put a cartridge into the holder, open VBKO and push water from the heater outlet tubing into the cartridge. If it flows freely, you have eliminated that part of the circuit.
Next, check EP. First, make sure it is a high flow pump. Look at the body of the pump. All gear pumps have two thin lines that show. This is where the pieces are assembled together. However, a Version 2 high flow pump will have a groove cut into it between those thin lines. It is about 1 mm wide, so it is unmistakable. If EP does not have a groove, it is not a high flow pump. If it does have the groove, then you need to check:
1. flow path from output of EP to heater outlet for free flow
2. ability of EP to move water efficiently
3. water block has water feeding EP, including VEB (orifice in valve is not obstructed).
Quick check of EP ability:
With EP at 2000 rpm, VEB closed, PE should be more negative than -500 mmHg.
With EP at 1500 rpm, VEB open, PE should be more negative than -35 mmHg.
Let us know what you find.
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