Haemonetics PCS 2, Руководство пользователя

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3-8 PCS2 Service Manual
Line Sensor Test
1. The PCS2 must be powered on for a minimum of 15 consecutive
minutes before proceeding with this test. When 15 minutes has
elapsed, proceed with the Line Sensor testing.
2. Select the Transducers test in Diagnostics using the MODIFY
PROGRAM and DRAW keys.
3. Verify that no tubing is installed in the line sensor, and that the digital
reading for the line sensor signal is between 2866 to 3276.
4. Slide a black non-reflective surface into the line sensor tubing slot.
(Dull paper with dull black marker on both sides works well for this).
Verify that the line sensor signal drops between 0 to 103.
5. If calibration is required, refer to Chapter 4, Calibration.
Bowl Optics Signal Test
1. The PCS2 must be powered on for a minimum of 15 consecutive
minutes to stabilize the optic circuit before proceeding with this test.
When 15 minutes has elapsed, proceed with the optics testing.
2. Inspect the optic window for contamination and clean before
measuring the optics signal.
3. Remove the gray card from the envelope in the Gray Card
Replacement Kit.
4. Make a note of the Correction Factor written on the back of the gray
card.
5. Insert the gray card into the optic alignment fixture so that the arrow
on the back points up into the optic fixture.
Note: • If the optic alignment fixture has a gray card installed, remove
the gray card and discard. The gray card used in the optic
alignment fixture must be uncontaminated by light or material.
• Ensure the white backing of the gray card is not “yellow.”
• Ensure the gray measuring surface is not physically damaged.
• Ensure the gray card is less than one year older than the date
printed on the back of the card.
6. a) If testing the optics signal to a digital value, select the Transducer
test in Diagnostics.
b) If testing the optics signal to an analog voltage, connect a digital
voltage meter, (greater than 3½ digit resolution), to J105 (top plug)
pin 9 (signal) and pin 5 (ground) on the Processor Card.
7. Ensure the centrifuge chuck is empty. Verify the average analog or
digital reading for the bowl optics offset signal is between 1 to 82
digital units or -0.10 to +0.10 VDC.
8. Install the optic fixture ETD 5060 in the centrifuge and rotate it until
the optic beam is centered on the gray card.