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Post by ksilcox11 on Jul 26, 2024 16:12:59 GMT
Good day all,
I have a version 8.3 machine that keeps giving me a repeat self-test after the blood tests during the tests I get no alarms no errors just that message after the tests is complete.
Any idea of what I should be looking for?
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Post by SrCusEngr on Jul 26, 2024 18:02:11 GMT
<ksilcox11> I believe you are referring to the bloodside tests, which are performed after the dialyzer is filled with dialysate fluid. There are to parts to the bloodside test. Part 1 is the Bloodside p. sensor test. This test determines the equality of the PA and PV sensors. In the 8.x platform, a voltage is OR'd into the PA and PV measurement circuits and read by the computer. The mean value (4 samples) of PA and PV are compared: PV-PA <= +/-40mmHg. The next part is the Bloodside pressure test. This test begins immediately after part 1. If parameters are correct, the Arterial Blood Pump (BPA) is set to a 200ml/min rate and starts to rotate. After 4.5 revolutions, SAKV clamps and PV must rise to a value greater than 390mmHg to pass the retention test. Also note that PBE is also monitored so it must be functional and calibrated.
There are several timeouts for these tests. If you are not seeing any alarms, it may be that a conditional starting parameter is missing. To further investigate, you should refer to the Version 8.xx service manual, chapter 3, paragraph 3.2.10, subparagraphs 3.2.10.1 and 3.2.10.2.
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Post by ksilcox11 on Jul 26, 2024 18:09:25 GMT
Disreguard the temp test was failing but it didn't pop up on the screen once I found that recalibrated the temp all is good thanks guys and gals.
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