Fresenius Medical Care 2008T Calibration Procedure page 74

12. Repeat Steps 10 and 11 for the Channel 2 LED, adjusting channel 2 potentiometer
(see Figure 8). The response of channel 2 is slower than channel 1. When adjusting
to the switch point, move the potentiometer in small steps and wait to see if the
LED switches on.
13. Move the jumper back to the Normal position (see Figure 8).
14. Press the [RESET] key to clear the alarm and check that both LED's are off,
indicating that the Level Detector is sensing no air present in the venous chamber.
15. Remove the venous chamber and watch the LED's. Verify that channel 1 lights first
followed quickly by channel 2.
Note: Channel 1 stops the blood pump and Channel 2 clamps the venous
blood line.
Note: The type of
potentiometer may vary
in shape and size.
Figure 8 - Level Detector Calibration Adjustments
2008T Calibration Procedures
P/N 508032 Rev. H
R19
CHANNEL 1
R20
CHANNEL 2
CHANNEL 1 LED
LIGHTS FIRST
CHANNEL 2 LED
LIGHTS SECOND
JUMPER POSITIONS
NORMAL
CALIBRATE
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