Landauer microSTAR ii - Failed QC Tests; Reader Daily QC Tests Failure

microSTAR®ii User Manual v1.3 91
12.6 Failed QC Tests
12.6.1 Reader Daily QC Tests Failure
Use the information in the following table to diagnose failures in the Reader Daily QC Tests. After the
corrective action is taken, rerun the test. If the test continues to fail after corrective action, contact
LANDAUER Technical Support for further troubleshooting. (See section 12.1 Technical Support for
contact information).
S
TEP
1:
R
EADER
I
NTRINSIC
S
TABILITY
T
EST
F
AILURE
I
NDICATIONS
P
OTENTIAL
CAUSE
C
ORRECTIVE
ACTION
Failed Dark
Count Test
-
Dark Counts that
exceed the upper
threshold
- Reader Door is
Open error
message
- PMT Counts
Higher than Max
Limit
Reader Door Open Close the reader drawer. If
it is already closed, confirm
that it is tightly closed. If
failures persist, run in a
dark room to test for light
leakage.
Outside Electrical
Interference
Move reader to another
location (away from
potential interference)
PMT Failure Contact Technical Support
Failed PMT
Counts
- PMT Count &
P-Diode Count
Average is
outside the
range
Failing PMT Contact Technical Support
S
TEP
2:
R
EADING
R
EPRODUCIBILITY
T
EST
F
AILURE
I
NDICATIONS
C
ORRECTIVE
A
CTION
Reader Door Open
Error Message
The reader door is open. Close the reader drawer. If it is
already closed, confirm that it is
tightly closed. If failures persist, run
in a dark room to test for light
leakage.
Low Raw Counts There is no nanoDot in the
drawer.
Place the nanoDot in the drawer.