Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 8, 2021 18:55:21 GMT
Hello everyone,
I am having a machine fail Optical detector test. Calibrated level detector already.
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Post by GuestNow on Dec 8, 2021 23:29:11 GMT
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Post by gnurk on Dec 9, 2021 13:12:36 GMT
you may have to replace the optical detector module on the level detector, insure that your art and venous pressures are calibrated and read zero
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Post by herbiehancock on Dec 16, 2021 18:13:53 GMT
check the arterial and venous pressures when the machine is running in dialysis mode at a 800 dfr. the arterial and venous pressures should be 0. if not, try recalibrating the bad pressure. that was what it was for me. It ended up being the venous pressure was reading 10 and throwing off the test for OD.....
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Post by DE Biomed on Jul 19, 2022 15:37:05 GMT
Agree usually at atmosphere pressure your art and Venus pressure needs to be 0. A simple art pressure calibration fixed it for me.
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TheTDoc
New Member
Gotta fix em all
Posts: 31
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Post by TheTDoc on Jul 19, 2022 17:55:09 GMT
It's a learning curve because fresenius doesn't have the way to calibrate it posted anywhere that I could find. but with a peice of paper and adjusting the gain opt det on the board in the venous module I was able to get one calibrated
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Post by jaretac on Jul 20, 2022 2:01:14 GMT
I've only had optical fail by itself once when I was a new biomed and I replaced the level detector sensor and it fixed the problem. Also I tend to get a machine failing Optical and TMP when pdail goes bad. I have no idea why but whenever I see fail optical and TMP I go straight to calibrating tmp and either that cures it or I get operator error and have to replace pdail.
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Post by herbiehancock on Jul 20, 2022 11:56:40 GMT
ive had this come up as a failure during alarm tests before because the staff puts the arterial or venous transducers onto the machine before test as well. both art and ven pressures should be zero and open to atmosphere during the tests
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Post by Alex on Oct 17, 2022 13:09:06 GMT
Had this issue before, solved by calibration of arterial pressure
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Post by Wes on Jun 27, 2023 11:12:44 GMT
I am having a machine Fail OD: No Art Alarm issue. the machine shows positive 10 Art pressure. I have calibrated it and will not hold calibration after restart. I have now changed LP 956, LP 955, Function board, Sensor board and Actuator-test board all one at a time without change. I am open to ideas of how to get it to hold atmospheric pressure at zero. I am sure it will be simple fix I am overlooking.
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Post by gnurk on Jun 27, 2023 12:04:38 GMT
try swapping the blood pump module with a known good one, also check the ribbon cables to motherbrd
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Post by StankMoose on Jun 27, 2023 17:33:02 GMT
Wes make sure youre follwing the last step in the calibration procedure where you hit both arrows at once to save the calibration, that burnt me a few times because the screen will say calibration saved, but it's not unless you hit those buttons.
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Post by nothingdown on Apr 2, 2024 14:15:14 GMT
I am having a machine Fail OD: No Art Alarm issue. the machine shows positive 10 Art pressure. I have calibrated it and will not hold calibration after restart. I have now changed LP 956, LP 955, Function board, Sensor board and Actuator-test board all one at a time without change. I am open to ideas of how to get it to hold atmospheric pressure at zero. I am sure it will be simple fix I am overlooking. If you are still around, I'm just curious if the problem was fixed by changing out the 3-way Solenoid Valve on the Blood Pump Module? Often people will replace the LP955 board but just unscrew and reuse the same solenoid valve, which works, unless it's the original issue... Anyhow, I ran across this test failure recently on a machine: "Fail OD: No Art Alarm," and with 20+ years in working on Fresenius machines, I had never seen it. I ran across this thread and calibrated the Arterial Pressure, and the alarm went away. Thanks for the help, y'all. |
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