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Post by CincyBiomed on Apr 15, 2024 13:50:43 GMT
I have Bluestar Standard machine that is failing Independent condo test. Conductivity has been calibrated multiple times, all is within range. Sensor, actuator, test, and even motherboard has been changed. Machine is running perfectly fine with no other issues or test failures at all. Just will not pass the independent condo test. Once the tests start it's almost like it freezes, stays in the independent condo test for 2-3 mins then fails. Has anyone else seen an issue like this?
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pacnw
Full Member
Posts: 187
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Post by pacnw on Apr 15, 2024 20:11:52 GMT
You did the cond conf calibration??? Using the yellow cord and Dongle?? That usually fixes the issue
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Post by Sheepdog1 on Apr 15, 2024 20:19:12 GMT
Have you done the Dialysate condo cells where it does the 4 points ? make sure you have OLC turned on! (hardware options) or it will just do the Match not the reference points
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Icebonez
Junior Member
What is better - to be born good, or to overcome your evil nature through great effort?
Posts: 55 
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Post by Icebonez on Apr 17, 2024 13:00:44 GMT
You did the cond conf calibration??? Using the yellow cord and Dongle?? That usually fixes the issue If the conductivity confirmation cell calibration does not work, then I also do the acid/bicarb pump volumes and the dialysate conductivity cells. Then you can try redoing the confirmation cell to see where you get. How does the actual conductivity on the machine look compared to your 90XL? That should give you an idea if its a calibration issue. |
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Post by YtoG on Apr 17, 2024 20:10:22 GMT
So I’m having this issue where it’s failing. Pre is steady at TCD and verified with the 90xl but the post on the “dialysate” screen jumps around +/-0.5 of TCD doesn’t stay in the same place longer than 5 seconds.
5tos 23k hrs bibag Acutes machine so OLC stays off.
Replaced post conductivity cell and NTC44 as well. If I calibrate the Cond Confim Cell it passes once maybe twice and does it again. I swapped a function board and sensor board with same results
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Post by mattcfkc on Apr 25, 2024 15:10:15 GMT
Just solved this same problem. Turned out to be the post temperature sensor, specifically the insulation breaking down and shorting out the sensor. Because the unit is now temperature compensated, if temperature goes up, the conductivity goes down. Problem is usually intermittent giving us a better challenge. We had this same insulation breakdown problem about 8 years ago with machines between 20 and 30K hours.
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