Dialab GmbH
Operator's Manual DIAcheck series Rev-4 Page 51
METHOD CLOT/CHROM
Clot = clotting assay
Chrom = chromogenic or immunturbimetric test
Limit
CLOT method:
30-70%
Definition of clotting time
30% =shorter results, close to start of reaction
70% =longer results, close to end of reaction
CHROM method:
25mE – 500mE
Definition of signal inlinearity or high dose
Example: Signals more then 50mE of endpoint are D-
Dimer positives.
Deadtime = First point of detection.
Trigger
100 = very sensitive. Risk of self start
5000 = very insensitive. Risk of no start
Initial LED power during start of test.
Very clear tests like FIB require just 5-10mA
Very turbid tests like DD require 15-25mA
The best LED power is set automatically during
measurement. The initial signal isrequired to avoid
Mathematically correction of signal
0% = no correction
100%= signal doubled
Can be helpful, if systems measure false short or
+- 15s
Eg. T-Corr=+20% - 3s, Result = 10s is corrected to 12s
- 3s= 9s.
Can be helpful to improve correlation to competitors
or golden standard
logX,LogXY
interpolation between calibration points
point to point interpolation or regression line,