Fresenius Medical Care 2008K Troubleshooting Manual page 226

BL- 6.0.0 CLEAN / CALIBRATE BLOOD LEAK SENSOR #8
IMPORTANT!
a) Perform ACID CLEAN followed by BLEACH DISINFECT to assure the Blood Leak
Detector's glass cuvette is clean.
performing Acid Clean and Bleach Disinfect may lead to unnecessary work and/or cause inaccurate
calibration of the Blood Leak Sensor!
b) Place the machine into Service mode
c) Press the 'CONFIRM' key to begin then read on. Normally the automated calibration, one at a time,
takes the screen's Leak AND Dimness data windows to approximately 5.00 and they should stabilize
fairly quickly. This indicates a successful calibration causing the screen to advance to step #5
"Calibration complete, press the [CONFIRM] key to save". If one OR the other data window does NOT
stabilize within three minutes there is a problem!
d) Is the Blood Leak calibration successful?
Yes Press the 'CONFIRM' key twice to save the calibration. Problem solved (at least for now).
If a false Blood Leak alarm reoccurs in the near future, six intermittent possibilities: 1) Bad
Blood Leak Sensor #8 (see
board; 4) Bad sensor cable; 5) Bad function board; 6) Bad distribution board. NOTE: See
Figure 4A
No Turn the machine off and swap the following seven components, one at time, with known
good, attempting Blood Leak calibration in between: 1) Actuator board; 2) Test board;
3) Blood Leak Detector #8 (see
6) Function board; 7) Distribution board. NOTE: See
listed circuit boards.
WARNING!
Calibrate Sensors
Figure
(page 8) to locate all listed circuit boards.
Figure
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Attempting a Blood Leak calibration without first
Blood Leak Detector.
89, page 220); 2) Bad actuator board; 3) Bad sensor
89, page 220); 4) Sensor cable; 5) Sensor board;
Figure 4A
Section 15 – Blood Leak Problems
(page 8) to locate all
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