Dynex DSX - Measurement Errors

Troubleshooting the Reader Module
DSX™ System Service Manual 11-9
Symptom Probable Cause Resolution
UNDER and
OVER readings
are more
common than
expected
OVER limit is set too
high.
Change the limit using the Main Menu.
Photodiode array is
dirty or faulty (assay
or plate related
issues).
Carefully clean the Upper and Lower optics
or replace as required.
Plate carrier
hangs before
ejecting.
Insure that plate
carrier is not hitting
the Bezel opening.
Loosen and reposition the bezel until
interference is removed.
Plate carrier
moves but does
not eject near the
back.
Belt bracket not
positioned properly
(hitting rear pulley).
Loosen and then reposition the belt bracket.
Plates running
into the upper
optics block or
upper optics
block button
head screws for
the upper stop.
Check that the
customer’s plate is
less than the
specified 15 mm
maximum plate
height.
If not recommend use of different type of
plate that meets specifications.
11.2.3 Measurement Errors
Symptom Probable Cause Resolution
Accuracy Error
Lamp Filter. Replace Lamp
Replace Filter.
Light leaks
Door not closed. Check door.
Rear panel not
installed.
Reinstall lamp door.
Chassis covers not
secured
Resecure covers.
Incorrect filter
installation or
selection
Filters in wrong
locations.
Check filter locations.
Filter wavelengths
entered incorrectly.
Re-enter filter wavelengths.