User Manual

Meter Setup • 3
81
■ If you selected Default Range, touch to save
this setting, or touch to exit this menu without
saving any changes.
■ If you selected Custom Range, touch to pro-
ceed with corresponding settings, or touch to
exit this menu without saving any changes. The dis-
play automatically returns to the previous screen.
If you selected Custom Range, the QC Range screen
opens and offers you the following options:
■ Display target value (On/Off)
■ Deviation from target value (percentage value). See
page 80.
For the control solutions, the target value always comes
from the information stored in the code chip. If you have
chosen Custom Range, you can now select an allowed
deviation from target value in the range of 0 to 22.5% (in
the illustration, 11.5%).
Note: For the test parameter PT, the percentage
deviation from the target value is always defined using
INR values. Even if you have activated % Quick in
the setup, the meter always calculates the devia-
tion using INR values; This range is then converted to
% Quick in a second step. As there is no linear correla-
tion between values expressed as INR and values
expressed as % Quick, if you calculate the percentage
deviation (11.5 % in the example) using the % Quick
target value, your result may deviate from the result cal-
culated by the meter using the INR target value.
QC Range
09:15 am
05/29/2015
Custom Range
Default Range
Par: aPTT
QC Range
09:15 am
05/29/2015
Deviation from
target value
Display target
value
On Off
11.5 %