Check For Leaks And Air Bubbles; Close The Bath Compartment; Press; Chamber, - Beckman Coulter LH 780 Instructions Manual

REPLACEMENT PROCEDURES
REPLACING APERTURE O-RINGS
D. If replacing the O-rings on the RBC bath, disconnect the sweep-flow tubing.
E. Unscrew the white fitting beneath the housing.
IMPORTANT
block at a time to avoid mismatching the apertures.
F . Pull the block out.
G. Replace the O-rings.
H. Return the aperture block to its original location.
I. Repeat steps E through H for the remaining aperture blocks.
J. Replace the bath and reconnect it.
K. Check for leaks and air bubbles.
L.

Close the bath compartment.

M. Run a control.
N. Review the control results.
O. Press
Procedure
DRAIN
A Press
POWER OFF
B Press
C Unhook the Bath Springs and Gently Pull the Bath Out of the Instrument
CAUTION Risk of instrument damage. If you touch the center of the block you can damage the instrument.
Do not touch the aperture in the center of the block.
3-14
Incorrect results can occur if aperture blocks are mismatched. Remove only one aperture
POWER ON
.
Until the Aperture Baths Drain Completely into the Waste Chamber
PN 773023AC