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Post by BioMedFuel on Jul 12, 2024 16:35:04 GMT
Hi everyone,
I have an issue on the down arrow button for the venous module. pressing the down arrow during treatment will increase the level instead of decreasing. may I know how I can simulate it without patient on and specially testing it after parts replace.
thank you.
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Post by The Bluestar Whisperer on Jul 12, 2024 17:21:38 GMT
A quick way to test is by putting your thumb over the port and pressing the up or down button. Pressing up should cause a vacuum, sucking your thumb to the port. Down should do just the opposite. This is the first I've heard of it increasing while pressing down, I've seen chamber level decreasing while pressing the up arrow before, but I doubt the fix is the same. Did it just randomly come up, or had anyone done previous work to the module?
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Post by dave74 on Jul 12, 2024 19:36:14 GMT
Can you hear the pump in the level detect module run when you press the down arrow?
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Post by stuff on Jul 15, 2024 12:23:22 GMT
If you take your level detector out and look at the clear tubing that goes to the pressure port. It connects to a black box on the circuit board. This black box has 2 ports. One port is the correct one and the other does as your describing, which is just the opposite of normal function.
The spares i looked at your clear tube should be connected to the bottom port on the black box.
To simulate it just connect the port to your pressure meter(90xl for me) and push one of the buttons.
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Post by BioMedFuel on Jul 17, 2024 14:52:54 GMT
thanks for all your responses, I ended up replacing the board.
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Post by dave74 on Jul 17, 2024 15:29:11 GMT
Thanks for posting your fix.
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Post by olebiscuit on Jul 23, 2024 20:13:40 GMT
I had that issue last week. You can also string the machine and test it with saline in the lines only and the pressure transducers attached. Mine worked fine. My thoughts were that it was back pressure from the pt access.
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