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Post by etbiomed on May 16, 2024 3:55:30 GMT
Hello,
I have B.Braun V 9.12, keep failing on DF Test at 12500 during Hemodialysis mode but always passed on test 1.27. PDA pressure not going down within 60 seconds during test 12500.
Any thoughts? thank you very much.
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Post by SrCusEngr on May 16, 2024 18:16:09 GMT
<etbiomed> You said PDA is not going down. Well, that is not the only thing PDA can do, it can also increase. So please give us some more details about what the circuit is doing? And did you just look at the screen and post or did you do some testing before posting your question?
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Post by etbiomed on May 28, 2024 13:23:14 GMT
Apparently the water circuit has a lot of air going through the systems, found out the bypass valve was bad. Thank you for your respond and I apologized for not posting earlier @srcusegnr.
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Post by SrCusEngr on May 29, 2024 16:32:32 GMT
<etbiomed> Thank you for your response and your solution.
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Post by just72 on Jul 15, 2024 16:47:48 GMT
New Member
Hello Everyone
This is a Problem I am having with the Dialog Plus Dialysis Machine SW Ver. 9.12
During Self-Test, DF Flow disturbed (membrane moving) is displayed
LLC: 12500
LLS: 12101 and it will restart the test again and again and again
Soo When I do Leak Test, it Fails: leak test it gives LLC Status: Leak test error
I have changed the balance Chamber's diaphragm (pairs),
VDEBK1 & VDEBK 2, UF Pump complete and
PDA sensor, as well as O-rings Bicarbonate Holder and that of rinsing bridged O-ring
but when I did a leak test, it fails again.
It gives LLC Status: Leak test error. again
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Post by SrCusEngr on Jul 15, 2024 18:13:50 GMT
<just72> The DFS Leakage test is a repeating test after failure. The important thing to remember is that the test not only involves the balance chamber, but also VDE, VDA (and that included the rinse bridge (because of the dialysate couplings), and the UF pump (which many forget because it is not seen on the screen). But the key to understanding the DFS Leakage test is watching what PDA is doing. And there is a difference between what a 9.1E machine does and a 9.1B or less does. If you have a lot of air going into your BC, then the DFS test will not work properly! You must first find the source of the air. If you have air bubbles going into the DF Manifold (from rear, the tubing in the upper left corner of the block) , then you degassing circuit is not providing sufficient water to the heater to keep the warm water side of the water block filled. The Degas pump does not push water to FPE. FPE draws water from the bottom of the warm water side of the block, so if the warm water side is empty, FPE then draws air. The degas pump (EP) always runs faster than FPE for a reason - to ensure the warm water side is filled faster than FPE can empty it.
You did not say how many hours are on the machine, but since it is a 9.12 system, I am guessing 15k or greater. You may need a new EP. You should also check for proper degassing. And use the newest Service Manual from the Service Portal.There are specific tests in the manual and PM sheet that you can use to help you troubleshoot the problem.
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Post by just72 on Jul 18, 2024 10:12:10 GMT
Thank you for the response and I appreciate it very much
I will follow up with your direction
But I don't have the newest service manual, The only manual I have is the 2010's Service Manual and I don't access to B.Braun's Service Portal,
Because I'm not officially trained by B.Braun.
Can You Please help me with the newest Service Manual and Self-Test Troubleshooting Instruction (my mail is optic197269@gmail.com)
Any other information is Appreciated.
Best Regards.
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Post by SrCusEngr on Jul 21, 2024 0:38:05 GMT
<just72> Sorry, B Braun will not release documentation to people who are not qualified by them to service the equipment, for reasons of patient safety.
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Post by just72 on Jul 29, 2024 19:25:45 GMT
Thanks
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Post by SrCusEngr on Jul 30, 2024 15:08:39 GMT
<just72> Your service manual still is usable. Chapter 3 describes the DFS Leak test (Code 12xxx). Note that the test is done in steps. Set valves, build up pressure, reduce pressure, hold pressure; repeat. If it won't build pressure, find out why. If it won't reduce pressure (UF pump), why. If it won't hold pressure, why? A leaking valve can keep pressure applied. Use occluding clamps on closed valves to see if you have a leaking valve. If it won't hold pressure (PDA falls), the UF Pump may be leaking. If PDA rises, a leaking valve? Look at the circuit and think. If this leaks, what happens to PDA pressure? And remember, even though there are two lines to PDA in the diagram, do not think one line feeds one side and the other line feeds the other side of PDA. They are one line and PDA is measuring the pressure of the line.
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