Swift M10DB-MP Use And Care Manual page 11

Aligning the Multi Phase System: As mentioned at the
beginning of these instructions, this system has been calibrated
by Swift technicians at the factory before shipment. This
calibration consists of centering the condenser holder and
aligning the annuli. These annuli, also called annular stops, are
inside the condenser and are specific for each of the phase
magnifications. These annuli must be aligned with the
corresponding phase rings inside each phase objective (10X,
20X/40X, 100X) in order for the effect to occur.
Prior to aligning the annuli, it is important to establish a
focus baseline. Begin by rotating the condenser control knob to
move the phase condenser to its highest point. Rotate the phase
turret control disc to the Bright Field (BF) setting. (Ensure that the
disc "clicks" into position). Rotate the 10x phase objective into
the optical path. Place a standard prepared specimen slide
(cover slip facing upwards) on the stage. Use the microscope
focus controls to bring the specimen into sharp focus. Remove
the specimen slide from the stage.
Once you have this slide in focus, do not move or adjust the
focus controls.
You have established the range in which you will be working and
this range needs to be maintained. Now alignment adjustments
can be made to your phase condenser. You will need your
centering telescope and alignment wrenches to perform this task.
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